CN115127462A - Device and method for measuring thickness of cable sheath - Google Patents
Device and method for measuring thickness of cable sheath Download PDFInfo
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- CN115127462A CN115127462A CN202210966803.7A CN202210966803A CN115127462A CN 115127462 A CN115127462 A CN 115127462A CN 202210966803 A CN202210966803 A CN 202210966803A CN 115127462 A CN115127462 A CN 115127462A
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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Abstract
The application relates to a measuring device and a measuring method for the thickness of a cable sheath, wherein the measuring device comprises: a base; the laser diameter measuring instrument set is arranged on the base and comprises at least two laser diameter measuring instruments, wherein one laser diameter measuring instrument is suitable for acquiring a first diameter of a target object, the other laser diameter measuring instrument is suitable for acquiring a second diameter of the target object, the first diameter is the diameter of the target object before the sheath is extruded, and the second diameter is the diameter of the target object after the sheath is extruded; the controller receives the first diameter and the second diameter measured by the at least two laser diameter measuring instruments, compares the first diameter and the second diameter with a preset value range, and calculates the difference value of the first diameter and the second diameter; the detection piece is in signal connection with the controller; the detection piece detects the target object based on the comparison result of the controller. The measuring device can perform online detection on the cable core and the cable so as to directly obtain the reason that the diameter of the cable core and the thickness of the sheath are too large or too small, and improve the production efficiency.
Description
Technical Field
The invention relates to a device and a method for measuring the thickness of a cable sheath, and belongs to the technical field of cable manufacturing.
Background
The thickness of the extruded layer of the cable jacket during the cable manufacturing process directly affects the product quality and production costs. The restrictive coating thickness is too big, can cause the waste of raw and other materials, increases product cost, and the thickness undersize then can lead to whole sinle silk to scrap. The volume of glue that goes out of extruder host computer is wrong or the cable core diameter does not accord with the standard and can lead to sheath thickness undersize, and causes the too big reason of sheath thickness then to have a variety, if adhere to debris on the sinle silk, or the cable core diameter does not accord with the standard, or the volume of glue that goes out of extruder host computer is wrong, or the plastics band is around the package, or the steel band is around the package etc..
At present, the method for measuring the thickness of the sheath layer commonly adopted in the cable production comprises the following steps: in the extrusion production process, the outer diameter of the extruded cable is measured by a measuring instrument and compared with the outer diameter of the cable core before extrusion, and the actual thickness of the sheath layer is calculated.
However, the existing measuring instrument can only measure the change of the outer diameter of the cable sheath before and after extrusion, when the thickness of the extruded sheath is too large or too small, the reason that the thickness of the sheath is too large or too small cannot be reflected through the change of the outer diameter before and after extrusion, if the reason that the thickness of the sheath is too large or too small is required to be obtained, the production needs to be stopped, the sheath at the corresponding position needs to be cut off to check the condition in the sheath, and then a corresponding solution is adopted, so that the production efficiency is low, meanwhile, the cable with the cut-off sheath cannot be put into use, so that the material waste is easily caused, and the production cost is increased.
Disclosure of Invention
Therefore, the invention aims to provide a cable sheath thickness measuring device which can detect the cable core and the cable on line when the diameter of the cable core and the sheath thickness are too large or too small.
In order to achieve the purpose, the invention provides the following technical scheme:
a cable jacket thickness measurement device comprising:
a base;
the laser diameter measuring instrument group is arranged on the base and comprises at least two laser diameter measuring instruments, wherein one laser diameter measuring instrument is suitable for acquiring a first diameter of a target object, the other laser diameter measuring instrument is suitable for acquiring a second diameter of the target object, the first diameter is the diameter of the target object before sheath extrusion molding, and the second diameter is the diameter of the target object after sheath extrusion molding;
the controller is used for receiving the first diameter and the second diameter measured by the at least two laser diameter measuring instruments, comparing the first diameter and the second diameter with a preset value range and calculating the difference value of the first diameter and the second diameter; and
the detection piece is in signal connection with the controller;
the detection piece detects the target object based on the comparison result of the controller.
Further, one of the laser calipers obtains a first diameter of the target object and simultaneously obtains a starting position of the target object, and the controller controls the other of the laser calipers to obtain a second diameter of the target object based on the starting position.
Furthermore, the laser diameter measuring instrument comprises a lifting rod, a diameter measuring main body arranged on the lifting rod and a meter counter arranged on the diameter measuring main body, wherein the meter counter is suitable for counting meters when the detection piece detects a target object.
Further, the detection piece is a high-speed camera.
Further, the device also comprises an alarm device, the alarm device is in signal connection with the controller, and the controller controls the alarm device to alarm based on the comparison result.
The invention also provides a measuring method applied to the measuring device for the thickness of the cable sheath, which comprises the following steps:
s1: setting a preset value range of a first diameter and a second diameter of a target object;
s2: acquiring an actual first diameter d1 and an actual second diameter d2 of a target object, and comparing the actual first diameter d1 and the actual second diameter d2 with the preset value range;
s3: calculating a sheath thickness D from the actual first diameter D1 and the actual second diameter D2;
s4: and calculating the extrusion consumption G according to the actual first diameter d1 and the actual second diameter d 2.
Further, the actual first diameter d1 and the actual second diameter d2 of the obtained target object are specifically:
s21: a laser diameter measuring instrument is started to measure the actual first diameter d1 of the target object, and meanwhile, the corresponding meter counter obtains the initial position of the target object;
s22: the controller calculates the time t of the starting position to reach another laser diameter measuring instrument;
s23: when the starting position reaches another laser diameter measuring instrument, the controller controls the other laser diameter measuring instrument to be started to obtain the actual second diameter d2 of the target object.
Further, the calculating, by the controller, a time t when the starting position reaches another laser diameter measuring instrument specifically includes:
and calculating the time t for the starting position to reach the second laser diameter measuring instrument according to a first preset formula, wherein the first preset formula is that t is S/v, S is the distance between the two laser diameter measuring instruments, and v is the moving speed of the target object.
Further, the calculating of the sheath thickness D from the actual first diameter D1 and the actual second diameter D2 is specifically:
calculating the actual sheath thickness D according to a second preset formula, wherein the second preset formula is D ═ D2-D1)/2.
Further, the step of calculating the extrusion consumption G according to the actual first diameter d1 and the actual second diameter d2 specifically comprises:
the extrusion consumption G is calculated according to a third preset formula of (d22-d12) × pi/4 × p, where p is the material density of the material used for the sheath.
The invention has the beneficial effects that:
1. the device for measuring the thickness of the cable sheath is provided with two laser diameter gauges, a controller and a detection piece in signal connection with the controller, wherein the two laser diameter gauges are used for respectively detecting a first diameter of a target object before the sheath is extruded and a second diameter of the target object after the sheath is extruded, the controller is suitable for comparing the first diameter and the second diameter with a preset value range and calculating the difference value of the first diameter and the second diameter, and the detection piece is used for detecting the target object based on the comparison result of the controller so as to realize the online detection of the cable core and the cable when the diameter of the cable core and the thickness of the sheath are too large or too small. Compared with the prior art, need not to stop production and cut off the cable sheath and observe, can directly acquire the reason that cable core diameter and sheath thickness are too big or the undersize, improve production efficiency then, simultaneously, when too big for the extruding machine volume of glue play when leading to, this section cable can continue to put into use, avoids extravagant, practices thrift the cost.
2. The method for measuring the thickness of the cable sheath provided by the invention has the advantages that the first diameter of a target object before the sheath is extruded and the second diameter of the target object after the sheath is extruded are respectively detected through the two laser diameter measuring instruments, the first diameter and the second diameter are compared with a preset value range through the controller, whether the diameters of the cable core and the cable are in the preset value range or not is monitored in real time, the difference value of the first diameter and the second diameter is calculated through the controller to obtain the thickness of the sheath, and the measuring method is simple.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a cable sheath thickness measuring device according to embodiment 1 of the present invention;
fig. 2 is a schematic flow chart of a measuring method of a measuring device for measuring the thickness of a cable sheath according to embodiment 2 of the invention;
fig. 3 is a schematic flow chart of the process of acquiring the actual first diameter d1 and the actual second diameter d2 of the target object shown in fig. 2.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, the present embodiment provides a cable sheath thickness measuring device, which includes a base 4, a laser diameter measuring instrument set, a controller 5 and a detecting element 2. The laser diameter measuring instrument set is arranged on the base 4 and comprises at least two laser diameter measuring instruments 1, wherein one laser diameter measuring instrument 1 is suitable for obtaining a first diameter of a target object (not shown), the other laser diameter measuring instrument 1 is suitable for obtaining a second diameter of the target object, the first diameter is the diameter of the target object before sheath extrusion, and the second diameter is the diameter of the target object after sheath extrusion. The controller 5 receives the first diameter and the second diameter measured by the at least two laser diameter measuring instruments 1, and the controller 5 compares the first diameter and the second diameter with a preset value range and calculates the difference value of the first diameter and the second diameter. The detection piece 2 is in signal connection with the controller 5, and detects the target object based on the comparison result of the controller 5.
The target object is a cable, the first diameter is the diameter of the cable before the extrusion molding of the sheath on the cable core, the second diameter is the diameter of the cable after the extrusion molding of the sheath on the cable core, and the difference value between the second diameter and the first diameter is twice the thickness of the sheath. But the floating scope of diameter behind preset cable core diameter and the cable core extrusion molding sheath is predetermine to the value range, and this scope can be adjusted according to the design demand, and this application does not limit to this.
The controller 5 may be provided on the laser diameter measuring instrument 1, or may be a peripheral device which is signal-connected to the laser diameter measuring instrument 1 and the detecting member 2, and has an operation and judgment function, and may calculate an average diameter before extruding the sheath of the object, an average diameter after extruding the sheath, maximum and minimum diameters before extruding the sheath, maximum and minimum diameters after extruding the sheath, a sheath thickness at a specified position after extruding the sheath, a maximum thickness, a minimum thickness, and an average thickness of the sheath, and a consumption amount of a material used for extruding the sheath. The controller 5 may be a single chip microcomputer, or a logic circuit, or an upper computer with a single chip microcomputer or a logic circuit, such as a mobile phone, a computer, etc., and may display the above data, which is convenient for a user to view. Are conventional and are not described in detail herein.
The laser diameter measuring instrument 1 is continuously and continuously used for measuring when in work, and 500 data can be measured every second, so that the sizes of all parts of the target object can be measured. The laser diameter measuring instrument 1 can be used as a photoelectric measuring device, can realize nondestructive detection, and is suitable for various workpieces, even soft, high-temperature, easily-deformed and radiated rolling stocks which are difficult to detect.
As can be seen from the foregoing, the detecting element 2 can detect the target object based on the comparison result of the controller 5, specifically, when the first diameter and/or the second diameter is greater than or less than the preset value range, the controller 5 controls the detecting element 2 to detect the target object, so as to obtain the reason that the first diameter and/or the second diameter is greater than or less than the preset value range, thereby implementing the function of online detection of the measuring device.
Compared with the prior art, the measuring device accessible of this application detects 2 reasons that directly acquire cable core diameter and sheath thickness are too big or the undersize, need not to stop production and cut open the cable sheath and observe to improve production efficiency, simultaneously, when the too big extruding machine of sheath thickness goes out the volume of gluing and leads to excessively, this section cable can continue to come into operation, avoids extravagant, practices thrift the cost.
In the present embodiment, the detecting member 2 is a high-speed camera, which is a device capable of capturing a moving image with an exposure of less than 1/1000 seconds or a frame rate of more than 250 frames per second, using the related art, and is used to record a rapidly moving object as a photographic image on a storage medium.
Specifically, the two laser diameter gauges 1 are respectively provided with a high-speed camera, when the comparison result of the controller 5 is that the first diameter and/or the second diameter are larger than or smaller than a preset value range, the controller 5 controls the two high-speed cameras to start and acquire pictures of the front and the back of the extrusion molding sheath of the target object in real time, and records the pictures on a storage medium, so that a user can conveniently follow-up take and view the pictures. And when the comparison result of the controller 5 shows that the first diameter and the second diameter are both within the preset value range, the controller 5 controls the high-speed camera to be closed.
Through the cooperation shooting of two high-speed cameras for the user can directly perceivedly acquire the state before the object extrusion molding sheath and the state behind the extrusion molding sheath. For example, when the first diameter and/or the second diameter of the target object are/is larger than a preset value range, a user can check whether sundries are attached before the target object is extruded out of the sheath or not through a picture shot by the first high-speed camera, or the situations such as plastic tape wrapping or steel tape wrapping are existed. This is not to be taken as an example.
In other embodiments, the detecting element 2 may be an industrial detection X-ray machine, which is provided with at least one device and scans the inside of the target object based on the comparison result of the controller 5 to obtain the situation inside the sheath, or the detecting element 2 may be a combination of a high-speed camera and an industrial detection X-ray machine, the high-speed camera is provided on the laser diameter measuring instrument 1 for measuring the first diameter of the target object to photograph the target object before extruding the sheath, and the industrial detection X-ray machine is used for scanning the inside situation of the target object after extruding the sheath. This is not an example.
In order to allow the controller 5 to calculate the difference between the first diameter and the second diameter of the target object at the same position, the measurement accuracy is improved. When the measuring device of the application is used for measuring, one laser diameter measuring instrument 1 obtains the first diameter of a target object, and simultaneously obtains the starting position of the target object, and the controller 5 controls the other laser diameter measuring instrument 1 to obtain the second diameter of the target object based on the starting position.
Specifically, the distance between the two laser diameter measuring instruments 1 is fixed, the moving speed of the target object can be preset by a user, and as can be seen from the above, the controller 5 has a calculating and judging function, and can obtain the time when the initial position of the target object reaches the other laser diameter measuring instrument 1 from one laser diameter measuring instrument 1 according to the moving speed of the target object, and after the time, the controller 5 controls the other laser diameter measuring instrument 1 to obtain the second diameter of the target object, which is the second diameter of the target object at the initial position.
In the above, the laser caliper 1 includes the lifting rod 13, the caliper main body 11 disposed on the lifting rod 13, and the meter counter 12 disposed on the caliper main body, and the meter counter 12 is adapted to count meters when the detection piece 2 detects the target object.
Specifically, the meter counter 12 counts the meter when the detection piece 2 detects the target object to record the specific position of the portion of the target object with the first diameter and/or the second diameter larger than or smaller than the preset value range, so that the user can conveniently perform corresponding processing on the portion subsequently, and the user can conveniently match the target object condition detected by the detection piece 2 to the corresponding position.
In this embodiment, the lifting rod 13 may be a hydraulic rod, or an expansion rod, or a nut push rod, which can be adjusted according to design requirements. It should be noted that the aforesaid caliper body 11 is provided, in opposition, with a transmitter (not numbered) adapted to emit laser light and a receiver (not numbered) adapted to receive the laser light, in a conventional arrangement and not described in detail herein.
For the convenience of users, the measuring device also comprises an alarm device (not shown), the alarm device is in signal connection with the controller 5, and the controller 5 controls the alarm device to alarm based on the comparison result.
The alarm device can be one or a combination of a loudspeaker, a buzzer, an indicator light or a voice prompt. The alarm device mainly gives an alarm when the first diameter and/or the second diameter of the target object are larger than or smaller than a preset value range so as to warn a user, the type and the number of the alarm device can be adjusted according to actual requirements, and the alarm device is not fixedly matched and limited.
Example 2
The present embodiment provides a measuring method applied to a cable sheath thickness measuring device, which is the same as or similar to the cable sheath thickness measuring device in embodiment 1, and can be referred to in embodiment 1 specifically, and will not be described in detail herein.
Referring to fig. 2 and 3, the method for measuring the thickness of the cable sheath by the measuring device is as follows:
s1: a preset value range of the first diameter and the second diameter of the target object is set.
S2: and acquiring the actual first diameter d1 and the actual second diameter d2 of the target object, and comparing the actual first diameter d1 and the actual second diameter d2 with a preset value range.
The method for obtaining the actual first diameter d1 and the actual second diameter d2 of the target object specifically comprises the following steps:
s21: a laser caliper is activated to measure the actual first diameter d1 of the target while the corresponding meter acquires the starting position of the target.
S22: the controller calculates the time t for the starting position to reach another laser caliper.
S23: when the starting position reaches another laser caliper, the controller controls the other laser caliper to be activated to acquire the actual second diameter d2 of the target object.
In step S22, the controller calculates the time t from the start position to the other laser diameter measuring instrument by: and calculating the time t for the starting position to reach the second laser diameter measuring instrument according to a first preset formula, wherein the first preset formula is that t is S/v, S is the distance between the two laser diameter measuring instruments, and v is the moving speed of the target object.
S3: the sheath thickness D is calculated from the actual first diameter D1 and the actual second diameter D2.
Wherein, calculating the sheath thickness D according to the actual first diameter D1 and the actual second diameter D2 specifically comprises: the actual sheath thickness D is calculated according to a second predetermined formula, which is (D2-D1)/2.
S4: the extrusion consumption G is calculated from the actual first diameter d1 and the actual second diameter d 2.
Wherein, the extrusion consumption G calculated according to the actual first diameter d1 and the actual second diameter d2 is specifically as follows: the extrusion consumption G is calculated according to a third preset formula, wherein G ═ (d22-d12) × pi/4 × p, where p is the material density of the material used for the sheath.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications can be made to the technical solutions described in the foregoing embodiments or equivalent substitutions for some technical features, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (10)
1. A cable jacket thickness measurement device, comprising:
a base;
the laser diameter measuring instrument group is arranged on the base and comprises at least two laser diameter measuring instruments, wherein one laser diameter measuring instrument is suitable for acquiring a first diameter of a target object, the other laser diameter measuring instrument is suitable for acquiring a second diameter of the target object, the first diameter is the diameter of the target object before sheath extrusion molding, and the second diameter is the diameter of the target object after sheath extrusion molding;
the controller is used for receiving the first diameter and the second diameter measured by the at least two laser diameter measuring instruments, comparing the first diameter and the second diameter with a preset value range and calculating the difference value of the first diameter and the second diameter; and
the detection piece is in signal connection with the controller;
the detection piece detects the target object based on the comparison result of the controller.
2. The apparatus for measuring the thickness of a cable jacket of claim 1, wherein one of said laser calipers acquires a first diameter of a target object and simultaneously acquires a starting location of the target object, and said controller controls the other of said laser calipers to acquire a second diameter of the target object based on the starting location.
3. The cable sheath thickness measuring device of claim 2, wherein the laser caliper comprises a lifter, a caliper body provided on the lifter, and a meter counter provided on the caliper body, the meter counter being adapted to count meters when the detecting member detects the target object.
4. The cable jacket thickness measuring device of claim 1, wherein said detecting member is a high-speed camera.
5. The cable sheath thickness measuring device according to claim 1, further comprising an alarm device in signal connection with the controller, wherein the controller controls the alarm device to alarm based on the comparison result.
6. A measuring method applied to the cable sheath thickness measuring apparatus according to any one of claims 1 to 5, characterized in that the measuring method comprises:
s1: setting a preset value range of a first diameter and a second diameter of a target object;
s2: acquiring an actual first diameter d1 and an actual second diameter d2 of a target object, and comparing the actual first diameter d1 and the actual second diameter d2 with the preset value range;
s3: calculating a sheath thickness D from the actual first diameter D1 and the actual second diameter D2;
s4: and calculating the extrusion consumption G according to the actual first diameter d1 and the actual second diameter d 2.
7. The method for measuring the cable sheath thickness according to claim 6, wherein the obtaining of the actual first diameter d1 and the actual second diameter d2 of the target object is specifically:
s21: a laser diameter measuring instrument is started to measure the actual first diameter d1 of the target object, and meanwhile, the corresponding meter counter obtains the initial position of the target object;
s22: the controller calculates the time t of the starting position to reach another laser diameter measuring instrument;
s23: when the starting position reaches another laser diameter measuring instrument, the controller controls the other laser diameter measuring instrument to be started to obtain the actual second diameter d2 of the target object.
8. The method of claim 7, wherein the controller calculates the time t from the starting position to the other laser diameter gauge by:
and calculating the time t for the starting position to reach the second laser diameter measuring instrument according to a first preset formula, wherein the first preset formula is that t is S/v, S is the distance between the two laser diameter measuring instruments, and v is the moving speed of the target object.
9. The method for measuring a cable sheath thickness as claimed in claim 7, wherein the calculating of the sheath thickness D from the actual first diameter D1 and the actual second diameter D2 is specifically:
calculating the actual sheath thickness D according to a second preset formula, wherein D is (D2-D1)/2.
10. The method for measuring a cable sheath thickness as claimed in claim 7, wherein the calculating of the extrusion consumption G from the actual first diameter d1 and the actual second diameter d2 is specifically:
calculating the extrusion consumption G according to a third preset formula, wherein the third preset formula is that G is (d 2) 2 -d1 2 ) And x pi/4 x p, wherein p is the material density of the material used for the sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210966803.7A CN115127462A (en) | 2022-08-11 | 2022-08-11 | Device and method for measuring thickness of cable sheath |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210966803.7A CN115127462A (en) | 2022-08-11 | 2022-08-11 | Device and method for measuring thickness of cable sheath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115127462A true CN115127462A (en) | 2022-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210966803.7A Pending CN115127462A (en) | 2022-08-11 | 2022-08-11 | Device and method for measuring thickness of cable sheath |
Country Status (1)
| Country | Link |
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| CN (1) | CN115127462A (en) |
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2022
- 2022-08-11 CN CN202210966803.7A patent/CN115127462A/en active Pending
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