CN111521123A - Automatic measuring device for twist pitch - Google Patents
Automatic measuring device for twist pitch Download PDFInfo
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- CN111521123A CN111521123A CN202010360731.2A CN202010360731A CN111521123A CN 111521123 A CN111521123 A CN 111521123A CN 202010360731 A CN202010360731 A CN 202010360731A CN 111521123 A CN111521123 A CN 111521123A
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- rotating shaft
- winding
- core wire
- measuring device
- lay length
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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
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention belongs to the technical field of lay length measurement, and particularly relates to an automatic lay length measuring device. The device comprises a counter-rotating assembly for fixing and rotating a core wire, a pulling assembly for pulling a single strand, a balancing weight for providing pulling power, and a displacement sensor for detecting the travel of a sliding block along a guide rail. The device has the advantages of compact structure, reliable and stable work, high detection accuracy and effectively improved detection efficiency, and can accurately realize the purpose of online measurement of the twisting distance of the twisted wire.
Description
Technical Field
The invention belongs to the technical field of lay length measurement, and particularly relates to an automatic lay length measuring device.
Background
The stranding machine is widely applied in the wire and cable industry, particularly, with the development of the communication industry, the stranding standards of various requirements are more and more, the stranding distance is small and uniform, the diameter of a single wire is small and cannot be extended, and the stability of the tension of the single wire and the stability of the pitch are always the development direction of the stranding machine in the future. It can be seen that the lay length, which is an important technical index for the inner core wire of the wire and cable, directly affects the quality of the actual finished wire and cable in the present and future. The traditional stranded wire lay length detection method is realized by a manual detection method after a core wire is produced, and comprises the following specific steps: find out a section core wire that does not scatter, begin to measure the lay length from the core wire is out of the head to guarantee that the measuring point aligns with the integral multiple scale of dipperstick. Due to the existence of manual measurement errors, the conventional method in the industry is to measure ten repeated distances and then calculate the average value to finally obtain the lay length. Obviously, the manual detection method is low in efficiency, and meanwhile, the error rate of manual operation is high, so that the accuracy of detection data is not high, the efficiency and the accuracy of the lay length detection are seriously reduced, and the high-efficiency fast-paced practical production requirements of the existing wire and cable enterprises cannot be met.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an automatic twisting distance measuring device which is compact in structure, reliable and stable in work, capable of accurately achieving the purpose of on-line measuring the twisting distance of a twisted wire, high in detection accuracy and capable of effectively improving the detection efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a lay length automatic measuring device which characterized in that: this device is including the counter rotation subassembly that is used for fixed and rotatory heart yearn, the balancing weight that is used for the tractive subassembly of single strand of tractive and provides tractive power, wherein:
the opposite rotating assembly comprises a base and two groups of clamping heads which are arranged on the base and used for clamping two ends of the core wire; at least one group of clamping heads is a rotary clamping structure, so that the clamped core wire can be driven to perform rotary wire releasing action along the axis of the core wire;
the traction assembly comprises a sliding block, a rotating shaft is arranged on the sliding block, a second winding part for winding strands and a first winding part for winding a traction rope are arranged on the rotating shaft, and the second winding part performs synchronous unwinding when the first winding part performs winding; the traction rope is fixedly connected with the counterweight block after being turned backwards by the turning wheel, so that the slide block is driven to generate unidirectional sliding motion with the guide direction parallel to the axis of the core wire along the guide rail under the gravity of the counterweight block;
the device also comprises a displacement sensor for detecting the travel of the slide block along the guide rail.
Preferably, the rotating shaft comprises a first rotating shaft and a second rotating shaft which are parallel to each other in axial line, a right sheave for winding the traction rope is arranged at the right end of the first rotating shaft, and the right sheave constitutes the first winding part; the left end of the second rotating shaft is provided with a left grooved wheel which is used for winding the strand and is consistent with the diameter of the right grooved wheel, and the left grooved wheel forms the second winding part; the middle section axle body department of first rotation axis and second rotation axis all arranges the intermediate gear coaxially, and two sets of intermediate gears mesh each other and the drive ratio is 1: 1.
preferably, a power motor is arranged in the sliding block, and a driving gear is arranged at a power output shaft of the power motor; the first rotating shaft is also provided with a driven gear, and the first rotating shaft can generate transverse displacement clutch action along the self axial direction, so that after the intermediate gear at the first rotating shaft is separated from the intermediate gear at the second rotating shaft, the driven gear at the first rotating shaft and the driving gear at the power motor form power meshing fit; the device also comprises a limiting block used for limiting the maximum lift of the balancing weight.
Preferably, an extension rod vertically extends downwards from the slide block, and the bottom end of the extension rod extends to a position close to the core wire; the first rotating shaft and the second rotating shaft are arranged at the rod body of the lower section of the extension rod in a rotating mode, and power transmission is achieved between a power output shaft of the power motor and the driving gear through the middle screw rod.
Preferably, the device further comprises a reset induction sensor, wherein the reset induction sensor is arranged at the initial position of the sliding block.
Preferably, the displacement sensor is a laser probe, the displacement sensor is arranged at one end of the guide rail, and the sensing end horizontally points to the direction of the sliding block.
Preferably, the turning wheels comprise a first turning wheel and a second turning wheel, wherein the first turning wheel is used for realizing the horizontal arrangement of the axis of the first right-angle turning of the traction rope, and the second turning wheel is used for realizing the horizontal arrangement of the axis of the second right-angle turning of the traction rope; the traction rope vertically extends upwards through the first winding part, then turns through the first turning wheel and horizontally extends to the second turning wheel, and then vertically extends downwards through the second turning wheel until the traction rope is fixedly connected with the balancing weight; the axes of the direction-changing wheels are parallel to each other and are perpendicular to the axis of the core line.
The invention has the beneficial effects that:
1) through the scheme, during actual work, a section of core wire is clamped and fixed through the opposite rotating assembly, so that the section of core wire is in a straightening state. Then, one strand at the core wire is picked out and wound on the first winding part. Then, the clamping head at the opposite clamping assembly starts to generate rotary wire unwinding action and unwinds the core wire. As the core wire is unwound, the single strand wound by the first winding part is released, so that the counterweight block falls under the action of gravity, the released single strand can be wound by the first winding part, and meanwhile, the sliding block can generate transverse displacement action along the guide rail. Taking numbers as an example, when the core wire is rotated 10 times by the clamping head, the displacement sensor captures the travel amount or displacement L of the slider along the guide rail, that is, the actual lay length S of the currently measured core wire can be obtained by the lay length S being the displacement L/10.
Obviously, the existence of the opposite operation assembly effectively reduces the labor intensity of operators; due to the existence of the traction assembly and even the displacement sensor, the purpose of online measurement of the twist distance of the twisted wire is accurately realized; the semi-automatic measuring and calculating process achieves the purpose of high-accuracy online strand displacement detection, and the detection efficiency can be effectively improved.
2) During actual operation, the pivot can be single axis body to through first winding portion and second winding portion to the reverse winding effect each other of corresponding line body, thereby realize synchronous just receiving the recoil function. The present invention preferably forms the shafts in such a manner that the two sets of rotating shafts are in gear engagement with each other. Therefore, the left sheave, namely the second winding part, and the right sheave, namely the first winding part, can be avoided from each other in space, and arrangement positions of the strands and the traction rope are more favorably arranged. When the two groups of rotating shafts are arranged in place, the self-resetting function of the sliding block can be realized by arranging the power motor. After one-time twist pitch measurement and calculation is completed, manual service is not needed, and only the power motor is started to drive the driving gear to move, and then the first rotating shaft is driven to rotate through gear tooth meshing. The first rotating shaft rotates to drive the balancing weight to rise, and meanwhile, the sliding block can also generate a reset action relative to the guide rail after the balancing weight rises to the right position until the balancing weight and the sliding block synchronously reset by self, so that the operation is very flexible and convenient.
3) The setting of extension rod and middle lead screw lies in making the pivot be close to the heart yearn as far as possible to the interval of the relative heart yearn of minimizing second winding portion, with the artifical length of pulling out that shortens the strand as far as possible, promote its actual measuring efficiency.
Drawings
FIGS. 1-2 are schematic views of the working state structure of the present invention;
FIG. 3 is a schematic diagram showing the matching state of each rotating shaft at the slide block in the pitch measuring process;
fig. 4 is a schematic diagram of the matching state of the rotating shafts at the slide block in the resetting process.
The actual correspondence between each label and the part name of the invention is as follows:
a-core wire b-strand wire
11-base 12-gripping head
21-slide block 21 a-extension rod 22-traction rope 23-guide rail
24 a-first rotation axis 24 b-second rotation axis
24 c-right sheave 24 d-left sheave 24 e-intermediate gear
25 a-power motor 25 b-driving gear 25 c-driven gear 25 d-intermediate screw rod
30-counterweight block 40-displacement sensor 50-limiting block 60-reset induction sensor
71-first direction-changing wheel 72-second direction-changing wheel
Detailed Description
For ease of understanding, the specific structure and operation of the present invention is further described herein with reference to FIGS. 1-4:
the structure of the embodiment of the present invention is shown in fig. 1-2, and the main body thereof includes an opposing clamping component, a pulling component and a weight block 30, wherein:
the counter clamp assembly comprises a base 11 and two sets of clamp heads 12 arranged on the base 11. The clamping head 12 may be directly used in conventional clamping and rotating mechanism, such as three-jaw chuck, or may be designed with corresponding rotating member. After clamping a section of core wire a, the clamping head 12 is required to rotate the core wire a around the axis of the core wire a for several turns to achieve the purpose of releasing the core wire. In practice, the two sets of gripping heads 12 may rotate in a single set while the other set is stationary, or may rotate in two sets simultaneously. When the two sets of gripping heads 12 are rotated simultaneously, the rotation directions are preferably opposite to each other to improve the wire unwinding efficiency.
The pulling assembly is disposed directly above the opposing clamping assembly as shown in fig. 1-2. In the embodiment shown in fig. 1-2, the pulling assembly comprises a guide rail 23 with a guiding direction parallel to the axial direction of the core wire a, and a sliding block 21 is rolled or slidingly engaged on the guide rail 23. An extension rod 21a extends vertically downward from the bottom end of the slider 21, and a first rotation shaft 24a and a second rotation shaft 24b are coupled to the extension rod 21a in a simple beam type rotation manner. The first and second rotation shafts 24a and 24b are engaged in equal ratio by an intermediate gear 24e to function to rotate in opposite directions to each other. The right end of the first rotating shaft 24a is provided with a right-side sheave 24c to wind the traction rope 22, and the left end of the second rotating shaft 24b is provided with a left-side sheave 24d to wind the strand b. When the pulling rope 22 is fixedly connected to the counterweight block 30 through the first direction-changing wheel 71 and the second direction-changing wheel 72, under the gravity of the counterweight block 30, the pulling rope 22 is pulled to drive the first rotating shaft 24a to rotate, the first rotating shaft 24a drives the second rotating shaft 24b to rotate through the intermediate gear 24e, and the second rotating shaft 24b realizes the winding function of the strand b; at the same time, the slide block 21 correspondingly generates the forward motion along the guide rail 23. The laser probe serves as a displacement sensor 40 for registering the displacement of the slide 21.
On the basis of the structure, the invention is also provided with a reset mechanism. As shown in fig. 3-4, the reset mechanism includes a power motor 25a integrated in the slide block 21, and the power motor 25a drives a driving gear 25b to rotate by using an intermediate screw rod as a transmission rod. The first rotating shaft 24a itself is a clutch shaft, i.e., a clutch lever structure in a conventional clutch for an automobile. When the first rotation shaft 24a generates the clutch action, the intermediate gear 24e at the first rotation shaft 24a is disengaged from the intermediate gear 24e at the second rotation shaft 24b, and simultaneously the driven gear 25c at the first rotation shaft 24a starts to engage with the driving gear 25b at the intermediate screw 25d, so as to generate the purpose of resetting the slider 21 and the counterweight 30 under the driving of the power motor 25 a.
To facilitate a further understanding of the invention, specific work flows of the invention are set forth herein as follows:
and (3) a lay length on-line measuring and calculating process:
1) the core wire a to be measured is clamped on two sets of clamping heads 12 at the base 11 as shown in fig. 1. The partial strands b are manually disassembled, and the end of one of the strands b is pulled out and fixed at the right-side sheave 24c of the first rotating shaft 24a by winding or even clamping. The strands b, which are held by the right-side sheaves 24c at this time, are balanced by the twisting force among the strands b constituting the core wire a and the weight of the counter weight 30, and are straightened, and the slider 21 is located at the right-side initial point of the guide rail 23 shown in fig. 1 at this time.
2) The clamping head 12 rotates for ten turns to realize the unwinding, and at the moment, each strand b forming the core wire a is separated from the core wire a constraint. Due to the existence of the counterweight 30, once the strand b fixed by the right grooved pulley 24c is released from the constraint of the core wire a, the counterweight 30 moves downwards and drives the left grooved pulley 24d to unreel the traction rope 22, and the right grooved pulley 24c to reel the strand b. Meanwhile, the slider 21 moves along the guide rail 23 from right to left as the counterweight 30 moves downward, as shown in fig. 2.
3) The displacement sensor 40, that is, the laser probe, monitors the travel of the slider 21 along the guide rail 23 in time. During concrete operation, the laser probe counts twice, and is counted once when counting under the initial state promptly, and counts once again when stopping again after slider 21 displacement, subtracts twice promptly for displacement volume L, later through displacement volume L/10, obtains the actual lay length S of the heart yearn a that is surveyed at present in real time for lay length S ═ displacement volume L/10.
Resetting the process:
the first rotating shaft 24a itself is a clutch shaft, i.e., similar to a clutch lever structure in a conventional clutch for an automobile. After one-time pitch measurement is completed, the first rotating shaft 24a can be horizontally displaced to generate the clutch action from fig. 3 to fig. 4. At this time, the intermediate gear 24e at the first rotation shaft 24a is disengaged from the intermediate gear 24e at the second rotation shaft 24b, and the driven gear 25c at the first rotation shaft 24a starts to engage the driving gear 25b at the power motor 25 a. When the first rotating shaft 24a is driven by the power motor 25a to rotate, the weight block 30 can be driven by the hauling rope 22 to ascend, and meanwhile, the weight block 30 is locked after ascending to the position of the limiting block 50, and cannot ascend continuously. The power motor 25a continues to rotate and the slide 21 then produces a return action along the guide 23. When the slide block 21 is displaced to the rightmost side of the guide rail 23 shown in fig. 1, that is, the reset induction sensor 60, the power motor 25a stops rotating, and the reset of the entire pulling mechanism is completed.
Of course, the above-mentioned scheme is only one specific example of the present invention, and the practical example is not limited thereto. In the use of the present invention, the conventional technical changes based on the known technical solutions of the present invention, such as designing the matching manner of the sliding block 21 and the guide rail 23 as other conventional guiding structures such as magnetic levitation and even slot type guiding, or arranging the direction-changing wheels into more groups, should be considered as the same or similar solutions of the present invention and fall into the protection scope of the present invention.
Claims (7)
1. The utility model provides a lay length automatic measuring device which characterized in that: the device comprises a counter-rotating component for fixing and rotating a core wire (a), a pulling component for pulling a single strand (b) and a balancing weight (30) for providing pulling power, wherein:
the opposite rotating assembly comprises a base (11) and two groups of clamping heads (12) which are arranged on the base (11) and used for clamping two ends of a core wire (a); at least one group of clamping heads (12) is a rotary clamping structure, so that the clamped core wire (a) can be driven to rotate along the axis of the core wire (a) to release the wire;
the traction assembly comprises a sliding block (21), a rotating shaft is arranged on the sliding block (21), a second winding part for winding the strand (b) and a first winding part for winding the traction rope (22) are arranged on the rotating shaft, and the second winding part performs synchronous unwinding when the first winding part performs winding; the traction rope (22) is turned by the turning wheel and then fixedly connected with the balancing weight (30), so that the sliding block (21) is driven to generate unidirectional sliding motion with the guide direction parallel to the axis of the core wire (a) along the guide rail (23) under the gravity of the balancing weight (30);
the device also comprises a displacement sensor (40) for detecting the travel of the slider (21) along the guide rail (23).
2. An automatic measuring device of a lay length according to claim 1, characterized in that: the rotating shaft comprises a first rotating shaft (24a) and a second rotating shaft (24b) which are parallel to each other in axial line, a right end of the first rotating shaft (24a) is provided with a right side sheave (24c) for winding the traction rope (22), and the right side sheave (24c) forms the first winding part; a left side sheave (24d) for winding the strand (b) in accordance with the diameter of the right side sheave (24c) is disposed at the left end of the second rotary shaft (24b), the left side sheave (24d) constituting the second winding portion; intermediate gears (24e) are coaxially arranged at the middle shaft bodies of the first rotating shaft (24a) and the second rotating shaft (24b), two groups of intermediate gears (24e) are meshed with each other, and the transmission ratio is 1: 1.
3. an automatic measuring device of a lay length according to claim 2, characterized in that: a power motor (25a) is arranged in the sliding block (21), and a driving gear (25b) is arranged at a power output shaft of the power motor (25 a); the first rotating shaft (24a) is also provided with a driven gear (25c), the first rotating shaft (24a) can generate transverse displacement clutch action along the self axial direction, so that after the intermediate gear (24e) at the first rotating shaft (24a) is separated from the intermediate gear (24e) at the second rotating shaft (24b), the driven gear (25c) at the first rotating shaft (24a) and the driving gear (25b) at the power motor (25a) form power meshing fit; the device also comprises a limiting block (50) used for limiting the maximum lift of the balancing weight (30).
4. An automatic measuring device of a lay length according to claim 3, characterized in that: an extension rod (21a) vertically extends downwards at the slide block (21), and the bottom end of the extension rod (21a) extends to a position close to the core wire (a); the first rotating shaft (24a) and the second rotating shaft (24b) are both arranged at the lower rod body of the extension rod (21a) in a rotating mode, and power transmission is achieved between a power output shaft of the power motor (25a) and the driving gear (25b) through the intermediate screw rod (25 d).
5. An automatic measuring device of a lay length according to claim 3 or 4, characterized in that: the device further comprises a reset induction sensor (60), said reset induction sensor (60) being arranged at an initial position of the slide (21).
6. An automatic lay length measuring device according to claim 1, 2, 3 or 4, wherein: the displacement sensor (40) is a laser probe, the displacement sensor (40) is arranged at one end of the guide rail (23), and the sensing end horizontally points to the direction of the sliding block (21).
7. An automatic lay length measuring device according to claim 1, 2, 3 or 4, wherein: the turning wheels comprise a first turning wheel (71) which is used for realizing the horizontal arrangement of the axis of the first right-angle turning of the traction rope (22) and a second turning wheel (72) which is used for realizing the horizontal arrangement of the axis of the second right-angle turning of the traction rope (22); the traction rope (22) vertically extends upwards through the first winding part, then is turned through the first turning wheel (71) and horizontally extends to the second turning wheel (72), and then vertically extends downwards through the second turning wheel (72) until the traction rope is fixedly connected with the balancing weight (30); the axes of the direction-changing wheels are parallel to each other and are perpendicular to the axis of the core line (a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360731.2A CN111521123B (en) | 2020-04-30 | 2020-04-30 | Automatic measuring device for twist pitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010360731.2A CN111521123B (en) | 2020-04-30 | 2020-04-30 | Automatic measuring device for twist pitch |
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| Publication Number | Publication Date |
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| CN111521123A true CN111521123A (en) | 2020-08-11 |
| CN111521123B CN111521123B (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010360731.2A Active CN111521123B (en) | 2020-04-30 | 2020-04-30 | Automatic measuring device for twist pitch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945077A (en) * | 2021-02-02 | 2021-06-11 | 杭州海康威视数字技术股份有限公司 | Twisted pair lay length detection method and device applied to twisted pair cable |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170049711A (en) * | 2015-10-27 | 2017-05-11 | 주식회사 포스코 | Clearance measuring apparatus for bearing and method of the same |
| CN107902477A (en) * | 2017-12-27 | 2018-04-13 | 湖北凯乐科技股份有限公司 | A kind of cable wire storage device |
| CN109307218A (en) * | 2018-09-24 | 2019-02-05 | 郭莲朵 | A kind of LED desk lamp embedded in table |
| CN210193043U (en) * | 2019-04-22 | 2020-03-27 | 杭州臻珎品牌管理有限公司 | Electric wire winder with antiwind function |
-
2020
- 2020-04-30 CN CN202010360731.2A patent/CN111521123B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170049711A (en) * | 2015-10-27 | 2017-05-11 | 주식회사 포스코 | Clearance measuring apparatus for bearing and method of the same |
| CN107902477A (en) * | 2017-12-27 | 2018-04-13 | 湖北凯乐科技股份有限公司 | A kind of cable wire storage device |
| CN109307218A (en) * | 2018-09-24 | 2019-02-05 | 郭莲朵 | A kind of LED desk lamp embedded in table |
| CN210193043U (en) * | 2019-04-22 | 2020-03-27 | 杭州臻珎品牌管理有限公司 | Electric wire winder with antiwind function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945077A (en) * | 2021-02-02 | 2021-06-11 | 杭州海康威视数字技术股份有限公司 | Twisted pair lay length detection method and device applied to twisted pair cable |
| CN112945077B (en) * | 2021-02-02 | 2023-02-28 | 杭州海康威视数字技术股份有限公司 | Twisted pair lay length detection method and device applied to twisted pair cable |
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| CN111521123B (en) | 2022-03-22 |
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