CN117805421B - Large-diameter cable sampling and cutting device and large-diameter cable sampling method - Google Patents
Large-diameter cable sampling and cutting device and large-diameter cable sampling method Download PDFInfo
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- CN117805421B CN117805421B CN202410232933.7A CN202410232933A CN117805421B CN 117805421 B CN117805421 B CN 117805421B CN 202410232933 A CN202410232933 A CN 202410232933A CN 117805421 B CN117805421 B CN 117805421B
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- 238000005070 sampling Methods 0.000 title claims abstract description 46
- 238000005520 cutting process Methods 0.000 title claims abstract description 30
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- 230000007246 mechanism Effects 0.000 claims abstract description 197
- 238000003825 pressing Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 10
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- 238000000429 assembly Methods 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 5
- 239000004020 conductor Substances 0.000 description 7
- 239000007888 film coating Substances 0.000 description 7
- 238000009501 film coating Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
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- 230000001360 synchronised effect Effects 0.000 description 4
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- 229910052782 aluminium Chemical group 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- 210000002489 tectorial membrane Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]
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Abstract
The invention relates to a large-diameter cable sampling and cutting device and a large-diameter cable sampling method, and belongs to the field of cables. The technical scheme is that the large-diameter cable sampling and cutting device comprises a workbench surface, wherein a conveying mechanism is arranged on the workbench surface along the length direction of a cable, a sawing mechanism is arranged above the conveying mechanism, clamping mechanisms and a film covering mechanism are arranged on two sides of the sawing mechanism, and the clamping mechanisms are positioned on one side, away from the sawing mechanism, of the film covering mechanism; the workbench surface is also provided with a position sensor, the position sensor is electrically connected with the conveying mechanism, and the position sensor is used for detecting the position of the cable. According to the scheme, the flat state in the cable conveying process is guaranteed through the conveying mechanism and the clamping mechanism, the sampling length is accurately controlled by the position sensor, the sawing mechanism cuts the cable, the film covering mechanism covers the end part of the cable after the cutting, a large amount of manual operation is omitted, and the labor intensity and the risk of being scratched by a cable fracture are reduced.
Description
Technical Field
The invention relates to the field of cables, in particular to a large-diameter cable sampling and cutting device and a large-diameter cable sampling method.
Background
In the process of purchasing and construction of a cable, quality test is required, usually, the cable product is sampled according to a certain length proportion, and then various performance parameters of the sampled product are tested.
For example, in a 10-220 kV power cable, the requirements of the spot inspection technology prescribe that the cable with 2.5-10 meters is cut according to the difference of the material (copper core or aluminum core) of a conductor and the sectional area of the conductor, and test items generally comprise direct current resistance, insulation thickness, thermal ductility of an insulation layer, contractility and the like. Then, the cut ends of the cut cable sample and other non-sampled cables need to be sealed against water ingress.
At present, when the cable is sampled, a worker generally cuts off the cable by using a hand saw or an electric reciprocating saw, the cable is held by hand, and then the end of the cable is sealed by manually winding an insulating film.
However, although the above manual operation has the advantage of flexibility and convenience, for some large-diameter cables, particularly for armored cables having a metal coating in the cable sheath, manual cutting has the following problems: firstly, the manual cutting-off is undoubtedly required to consume a great deal of physical power, and the operation time is prolonged; secondly, the conductor in the large-diameter cable is generally thicker and harder, the fracture of the conductor and the metal armor layer are uneven after the conductor is cut off, and the risk of scratching by workers is also caused when the insulating film is wound; and thirdly, after the coiled cable with the large diameter is straightened, the coiled cable is easier to bend back, and the sampling length is larger, so that the length error of the acquired sample is increased, and the related index is difficult to accurately measure.
Disclosure of Invention
The invention provides a large-diameter cable sampling and cutting device, which aims at the problems that the cutting time length and the length error are large and the cable fracture is easy to cut operators when the large-diameter cable is manually cut and sampled at present.
In order to solve the problems, the technical scheme adopted by the invention is that the large-diameter cable sampling and cutting device comprises a workbench surface, wherein a conveying mechanism is arranged on the workbench surface along the length direction of a cable, a sawing mechanism is arranged above the conveying mechanism, clamping mechanisms and film covering mechanisms are arranged on two sides of the sawing mechanism, and the clamping mechanisms are positioned on one side, far away from the sawing mechanism, of the film covering mechanism; the workbench surface is also provided with a position sensor, the position sensor is electrically connected with the conveying mechanism, and the position sensor is used for detecting the position of the cable. This scheme has designed an automatic sampling cutting device, guarantees the straight state in the cable transportation process through conveying mechanism and fixture to cooperation position sensor accurate control sample length, saw cut the mechanism and cut the cable, tectorial membrane mechanism carries out the cladding to the cable tip after the cutting, has saved a large amount of manual operations, has reduced intensity of labour and by the risk of cable fracture fish tail.
Preferably, the conveying mechanism comprises a front conveying mechanism and a rear conveying mechanism, a certain gap is formed between the front conveying mechanism and the rear conveying mechanism, a saw blade of the sawing mechanism is positioned above the gap, and the two clamping mechanisms are respectively positioned above the front conveying mechanism and the rear conveying mechanism. The conveying mechanism is arranged in a segmented mode, space is provided for saw blade movement, and the cutting effect is guaranteed.
Preferably, the front conveying mechanism and the rear conveying mechanism each comprise a conveyor belt; the clamping mechanism comprises two clamping assemblies, the two clamping assemblies are respectively located at two sides of the conveyor belt and are oppositely arranged, each clamping assembly comprises a fixing plate and a turning plate, the turning plate is located at one side of the fixing plate, which is close to the conveyor belt, the edge of the lower side of the turning plate is hinged to the workbench surface or the fixing plate, a spring is arranged between the turning plate and the fixing plate, the spring can drive the turning plate to turn towards the direction of the conveyor belt, a pressing roller is installed towards one side of the conveyor belt, and the rotation axis of the pressing roller is located in a vertical plane. The conveyer belt both sides turn over the board and press the cable on the conveyer belt under the spring action, fixed cable's transportation position and make the cable keep straight, improve the frictional force between cable and the conveyer belt, simultaneously, turn over the board and pass through compression roller and cable contact, reduced outside frictional resistance, guarantee that the cable is carried stably.
Preferably, the upper edges of the turning plates are provided with a plurality of U-shaped grooves at intervals, mounting columns are formed between the adjacent U-shaped grooves, the press rollers are mounted on the side surfaces of the mounting columns, the groove widths of the U-shaped grooves are not smaller than the widths of the mounting columns, and the U-shaped grooves on the two turning plates are staggered in the cable length direction. When the cable is compressed, the compression roller can enter the U-shaped groove of the opposite side turning plate, the distance between the compression roller and the conveyor belt is reduced, and the diameter range of the cable which can be compressed is improved.
Preferably, the film covering mechanism comprises a fixed frame, a rotating ring and a driving assembly are rotatably arranged on the fixed frame, the rotating ring surrounds the conveying mechanism, and notches corresponding to the two film covering mechanisms are respectively arranged on the front conveying mechanism and the rear conveying mechanism in the conveying direction; the membrane storage component is arranged on the rotating ring, and the driving component can drive the rotating ring to rotate. The rotating ring rotates around the cable, and then the insulating film can be automatically wound at the end part of the cable.
Preferably, the side surface of the fixed frame is provided with an annular track, the side end surface of the rotating ring is provided with a sliding block, and the sliding block is slidably arranged on the annular track; the driving assembly comprises a driving motor, a driving belt wheel is arranged on an output shaft of the driving motor, and a driving belt is arranged on the outer peripheral surface of the driving belt wheel and the outer peripheral surface of the rotating ring in a surrounding mode.
Preferably, the wire saw further comprises a straightening mechanism, the straightening mechanism is arranged in front of the front conveying mechanism, the straightening mechanism comprises a straightening barrel, the axis of the straightening barrel is arranged along the direction of the cable, and one end, far away from the sawing mechanism, of the straightening barrel is in a diffuse bell mouth shape. The straightening mechanism is arranged in front of the conveying mechanism, so that the cable can be straightened in advance, the flatness of the cable is further improved by matching with the front and rear clamping mechanisms, and the length precision is improved.
Preferably, the straightening cylinder is provided with a plurality of groups of straightening rollers, each group of straightening rollers is arranged along the circumferential direction of the straightening cylinder, the rotation axis of each straightening roller is along the tangent line of the outer circumferential surface of the straightening cylinder, and the outer circumferential surface of each straightening roller protrudes out of the inner surface of the straightening cylinder. The friction resistance of the straightening mechanism to the cable is reduced, and the cable sheath is prevented from being scratched.
Preferably, the sawing mechanism comprises a mounting seat, the mounting seat is mounted on the workbench surface, a sawing machine head is hinged to the mounting seat, and a saw blade is mounted on the sawing machine head and can be driven to rotate.
On the other hand, the invention also provides a large-diameter cable sampling method, which adopts the large-diameter cable sampling and cutting device, and comprises the following steps:
Installation cable
S1, inserting one end of a cable to be sampled into and passing through a straightening cylinder to reach a conveyor belt of a front conveying mechanism;
S2, turning plates positioned at the front conveying mechanism are turned downwards under the action of springs, and compression rollers on the turning plates at two sides compress the cable on the front conveying mechanism;
S3, continuing paying off the cable, enabling the end of the cable to pass through a position sensor, triggering and starting a front conveying mechanism and a rear conveying mechanism by the position sensor;
s4, turning down a turning plate positioned at the rear conveying mechanism, and pressing the cable on the rear conveying mechanism by a pressing roller on the turning plate;
Cable sampling
S5, the front conveying mechanism and the rear conveying mechanism keep running, and the conveying length of the cable is calculated according to the distance between the front conveying mechanism and the rear conveying mechanism;
S6, when the cable is conveyed for a set length, the front conveying mechanism and the rear conveying mechanism stop running, and the sawing mechanism cuts off the cable;
Cable package
S7, the front conveying mechanism runs reversely, the rear conveying mechanism runs positively, and the cut ends of the cables respectively reach the two film covering mechanisms;
S8, an operator installs an envelope at a cable fracture, and adheres the end part of an insulating film in the film storage assembly to the cable or the installation envelope;
s9, rotating the rotating ring to wind the insulating film on the end part of the cable, and fixing the envelope;
S10, the front conveying mechanism continues to reversely run, and the residual cable exits the sampling and cutting device; and the rear conveying mechanism continuously operates in the forward direction, and the cable sample exits the sampling and cutting device.
According to the technical scheme, the invention has the advantages that: the invention provides a cutting device for sampling a large-diameter cable, which can automatically perform straightening, fixed-length cutting and breakpoint film coating operation on the cable, improves sampling efficiency and sampling precision, reduces manual operation, reduces the risk of scratching a conductor and a metal armor at a broken part of the cable by a worker, and improves operation safety; through the structural design of the straightening mechanism and the clamping mechanism, the cable diameter range is large, the cable flatness is good, the sampling length is accurate, and the detection result is reliable; the film covering mechanism can automatically wind and wrap the end part of the cable; on the other hand, the sampling method provided by the invention has the advantages of high automation degree, high sampling precision and efficiency, small labor intensity and higher safety.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a straightening mechanism according to an embodiment of the invention.
Fig. 3 is a schematic structural diagram of a clamping mechanism according to a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a clamping assembly according to a first embodiment of the invention.
Fig. 5 is a schematic structural view of a film laminating mechanism according to an embodiment of the present invention.
Fig. 6 is an enlarged view at a in fig. 1.
Description of the reference numerals
1. The device comprises a workbench surface, a straightening cylinder, a straightening roller, a front conveying mechanism, a rear conveying mechanism, a mounting seat, a sawing machine head, a saw blade, a clamping mechanism, a fixing plate, a turning plate, a mounting column, a spring, a pressing roller, a laminating mechanism, a fixing frame, a rotating ring, an annular track, a sliding block, a driving motor, a driving belt wheel, a driving belt, a storage membrane assembly and a position sensor.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the drawings in this specific embodiment, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the invention are intended to be within the scope of the patent protection.
Example 1
As shown in fig. 1, a large-diameter cable sampling and cutting device comprises a workbench surface 1, wherein a conveying mechanism is arranged on the workbench surface 1 along the length direction of a cable, namely, the conveying direction of the cable, the conveying mechanism comprises a front conveying mechanism 3-1 and a rear conveying mechanism 3-2, the front conveying mechanism and the rear conveying mechanism are both of conveying belt structures, the front conveying mechanism 3-1 and the rear conveying mechanism 3-2 both comprise two sections of conveying belt components, the conveying belt components comprise a plurality of synchronous rollers, the rotation axes of the synchronous rollers are parallel to each other and are positioned in the same horizontal plane, the peripheries of the synchronous rollers are sleeved with conveying belts together, the length direction of the conveying belts is the running direction, namely, the cable conveying direction (length direction), in each conveying mechanism, one of the synchronous rollers is connected with a driver (can be a driving motor and the like), and in the same conveying mechanism, the two conveying belt components are arranged at a certain distance, and the distance is set as a first gap; meanwhile, a certain distance is formed between the front conveying mechanism 3-1 and the rear conveying mechanism 3-2, namely, a certain distance is formed between a rear conveyor belt assembly in the front conveying mechanism and a front conveyor belt assembly in the rear conveying mechanism, and the distance is set to be a second gap; in the four conveyor belt assemblies, the upper surfaces of the conveyor belts are arranged in a coplanar manner to form a conveying plane of the cable.
The workbench surface 1 is sequentially provided with a straightening mechanism, a front clamping mechanism, a front laminating mechanism, a sawing mechanism, a rear laminating mechanism and a rear clamping mechanism along the cable conveying direction (from front to rear):
As shown in fig. 2, the straightening mechanism includes a straightening cylinder 2, the axis of the straightening cylinder 2 is arranged along the cable conveying direction and is located above the upper surface of the conveying belt, the width center of the conveying belt is located, one end of the straightening cylinder 2 far away from the conveying assembly is an inlet end, a cable enters from the inlet end, the end is further provided with a spreading horn-shaped opening, a plurality of groups of straightening rollers 2-1 are arranged on the cylinder wall of the straightening cylinder 2, the groups of straightening rollers 2-1 are arranged along the circumference of the straightening cylinder 2, the straightening rollers 2-1 in each group are arranged along the circumference of the straightening cylinder 2, specifically, square holes are formed in the cylinder wall of the straightening cylinder, the straightening rollers are rotatably mounted in the corresponding square holes, the rotation axes of the straightening rollers are tangentially arranged (overlapped or parallel) along the outer circumferential surface of the straightening cylinder at the mounting position of the straightening rollers, and the outer circumferential surface of the straightening rollers is located inside the straightening cylinder.
The front clamping mechanism and the rear clamping mechanism have the same structure and are hereinafter collectively called as the clamping mechanism 5, as shown in fig. 3, the clamping mechanism 5 comprises two clamping assemblies which are oppositely arranged, the two clamping assemblies are oppositely arranged at two sides of the conveyor belt along the width direction of the conveyor belt, the clamping assemblies comprise a fixed plate 5-1 and a turning plate 5-2, the fixed plate 5-1 is vertically arranged on the workbench surface 1 and faces the conveyor belt, the turning plate 5-2 is positioned at one side of the fixed plate 5-1, which is close to the conveyor belt, the lower side edge of the turning plate 5-2 is hinged with the workbench surface, the hinge shaft is close to the lower side edge of the fixed plate 5-1, a spring 5-3 is arranged between the turning plate 5-2 and the fixed plate 5-1, the spring 5-3 can drive the turning plate 5-2 to turn over towards the conveyor belt, in the embodiment, the two ends of the spring are fixedly connected with the opposite surfaces between the fixed plate 5-1 and the turning plate 5-2 respectively, and the spiral spring pushes the turning plate 5-2 towards the conveyor belt, and has the maximum pushing distance, namely the spiral spring and the length of the turning plate is not pressed by the spiral spring under the natural condition, and the turning plate is not naturally inclined with the outer force, and the turning plate 5-2 is not naturally inclined towards the conveyor belt; in this embodiment, the turning plates 5-2 are comb-shaped, that is, as shown in fig. 4, the upper edges of the turning plates 5-2 are provided with a plurality of U-shaped grooves, a mounting column 5-2-1 is formed between adjacent U-shaped grooves, a pressing roller 5-4 is rotatably mounted on the side surface of the mounting column 5-2-1, which is close to the conveyor belt, the rotation direction of the pressing roller is located in a vertical plane, the vertical plane is perpendicular to the conveying direction of the cable, the groove width of the U-shaped grooves is not smaller than the width of the mounting column, the U-shaped grooves on the two turning plates 5-2 are staggered in the length direction of the cable, that is, when the turning plates 5-2 turn down, the mounting column and the pressing roller on one side can be staggered into the U-shaped groove on the opposite side turning plate, so that the turning plates on both sides can reduce mutual position interference, and the pressing roller can be closer to the surface of the conveyor belt to press the cable with smaller diameter, the pressing roller on both sides obliquely presses the cable on the conveyor belt, so that the positioning of the cable in the width direction of the conveyor belt can be realized, and the friction force between the cable and the conveyor belt can be increased, when the conveyor belt runs; the front clamping mechanism and the rear clamping mechanism 5 are matched, so that the flat positioning and conveying of the cable are realized.
The front film coating mechanism and the rear film coating mechanism have the same structure, hereinafter collectively referred to as film coating mechanism 6, the film coating mechanism 6 is located in a first gap, as shown in fig. 5 and 6, the film coating mechanism 6 comprises a fixed frame 6-1, the fixed frame is a rectangular or circular frame body, the plane of the fixed frame is located in a vertical plane and is perpendicular to the cable conveying direction, a rotating ring 6-2 and a driving component are rotatably installed on the fixed frame 6-1, specifically, an annular track 6-3 is installed on one side surface of the fixed frame 6-1, a sliding block 6-4 is installed on one side end surface of the rotating ring 6-2, the sliding block 6-4 is installed on the annular track 6-3 in a sliding fit manner, the driving component comprises a driving motor 6-5, the driving motor 6-5 can be installed on other installation bases such as a working table surface 1 or the bottom surface, a driving belt wheel 6-6 is installed on an output shaft of the driving motor 6-5, a driving belt 6-7 is installed around the outer peripheral surface of the driving belt wheel 6-6 and the rotating ring 6-2 together, a film storage component 6-8 is installed on the rotating ring 6-2, for example, the film storage component 6-8 can be automatically wound on the rotating shaft in a film storage component in a film winding mode, and the film storage component can be automatically wound on the rotating shaft when the rotating component is wound on the rotating shaft, and can be wound on the rotating shaft.
As shown in fig. 1, the sawing mechanism includes a mounting seat 4-1, the mounting seat 4-1 is mounted on a working table, a sawing machine head 4-2 is hinged on the mounting seat, a saw blade 4-3 is mounted on the sawing machine head 4-2 and can be driven to rotate by a driving device such as a built-in motor, a handle can be arranged on the sawing machine head 4-2, the sawing machine head 4-2 is manually controlled to move, or a telescopic device such as an air cylinder is adopted, the telescopic device is arranged between the mounting seat and the sawing machine head or between an operation table and the sawing machine head, the sawing machine head is automatically controlled to move, the saw blade is positioned at a position of a second gap between a front conveying mechanism and a rear conveying mechanism, and the specific internal structure of the sawing machine head is the prior art and can refer to an aluminum profile saw, which is not repeated herein. The position of the working table corresponding to the sawing mechanism is also provided with a position sensor 7 which can be arranged on the opposite side of the sawing mechanism of the conveyor belt and used for detecting the position of the cable, the position sensor 7 is electrically connected with the conveying mechanism and can be further provided with a controller, the controller is provided with a sampling length, the cable starts to measure the length after passing through the triggering position sensor 7, the conveying mechanism is controlled to run for a set length and then cut off, in the process, the conveying length is the distance of the running of the conveyor belt, and the running time is controlled according to the running speed of the conveyor belt. In order to avoid that the saw blade and the cable debris touch the position sensor, the position sensor preferably uses a non-contact sensor such as a laser.
Example two
Based on the large-diameter cable sampling and cutting device provided in the first embodiment, the present embodiment further provides a large-diameter cable sampling and cutting method, which adopts the large-diameter cable sampling and cutting device in the first embodiment, and the method includes the following steps:
Installation cable
S1, inserting one end of a cable to be sampled into and passing through a straightening cylinder to reach a conveyor belt of a front conveying mechanism;
S2, turning plates positioned at the front conveying mechanism are turned downwards under the action of springs, and compression rollers on the turning plates at two sides compress the cable on the front conveying mechanism;
S3, continuing paying off the cable, enabling the end of the cable to pass through a position sensor, triggering and starting a front conveying mechanism and a rear conveying mechanism by the position sensor;
s4, turning down a turning plate positioned at the rear conveying mechanism, and pressing the cable on the rear conveying mechanism by a pressing roller on the turning plate;
Cable sampling
S5, the front conveying mechanism and the rear conveying mechanism keep running, and the conveying length of the cable is calculated according to the distance between the front conveying mechanism and the rear conveying mechanism;
S6, when the cable is conveyed for a set length, the front conveying mechanism and the rear conveying mechanism stop running, and the sawing mechanism cuts off the cable;
Cable package
S7, the front conveying mechanism runs reversely, the rear conveying mechanism runs positively, and the cut ends of the cables respectively reach the two film covering mechanisms;
S8, an operator installs an envelope at a cable fracture, and adheres the end part of an insulating film in the film storage assembly to the cable or the installation envelope;
s9, rotating the rotating ring to wind the insulating film on the end part of the cable, and fixing the envelope;
S10, the front conveying mechanism continues to reversely run, and the residual cable exits the sampling and cutting device; and the rear conveying mechanism continuously operates in the forward direction, and the cable sample exits the sampling and cutting device.
In the process, when the cable and the conveyor belt slip, the cable can be manually rotated to assist in cable conveying.
According to the embodiment, the cutting device for sampling the large-diameter cable has the beneficial effects that the cutting device can automatically straighten, cut the cable by fixed length and perform breakpoint film coating operation on the cable, so that the sampling efficiency and the sampling precision are improved, meanwhile, the manual operation is reduced, the risk that a worker is scratched by a conductor and a metal armor at the broken part of the cable is reduced, and the operation safety is improved; through the structural design of the straightening mechanism and the clamping mechanism, the cable diameter range is large, the cable flatness is good, the sampling length is accurate, and the detection result is reliable; the film covering mechanism can automatically wind and wrap the end part of the cable; on the other hand, the sampling method provided by the invention has the advantages of high automation degree, high sampling precision and efficiency, small labor intensity and higher safety.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A large-diameter cable sampling method is characterized in that a large-diameter cable sampling and cutting device is adopted:
The cutting device comprises a workbench surface (1), a conveying mechanism is arranged on the workbench surface along the length direction of the cable, a sawing mechanism is arranged above the conveying mechanism, clamping mechanisms and a film covering mechanism are arranged on two sides of the sawing mechanism, and the clamping mechanisms are positioned on one side, away from the sawing mechanism, of the film covering mechanism; the workbench surface is also provided with a position sensor, the position sensor is electrically connected with the conveying mechanism, the position sensor is used for detecting the position of a cable, the conveying mechanism comprises a front conveying mechanism (3-1) and a rear conveying mechanism (3-2), a certain gap is formed between the front conveying mechanism (3-1) and the rear conveying mechanism (3-2), a saw blade of the sawing mechanism is positioned above the gap, and two clamping mechanisms are respectively positioned above the front conveying mechanism (3-1) and the rear conveying mechanism (3-2);
The front conveying mechanism (3-1) and the rear conveying mechanism (3-2) both comprise conveyor belts; the clamping mechanism comprises two clamping assemblies, the two clamping assemblies are respectively positioned at two sides of the conveyor belt and are oppositely arranged, the clamping assemblies comprise a fixed plate (5-1) and a turning plate (5-2), the turning plate (5-2) is positioned at one side of the fixed plate, which is close to the conveyor belt, the lower side edge of the turning plate is hinged with a workbench surface or the fixed plate (5-1), a spring (5-3) is arranged between the turning plate (5-2) and the fixed plate (5-1), the spring (5-3) can drive the turning plate (5-2) to turn towards the conveyor belt, a pressing roller (5-4) is arranged at one side of the turning plate (5-2) facing the conveyor belt, and the rotating axis of the pressing roller (5-4) is positioned in a vertical plane;
The film covering mechanism (6) comprises a fixed frame (6-1), a rotating ring (6-2) and a driving assembly are rotatably arranged on the fixed frame (6-1), the rotating ring (6-2) surrounds the conveying mechanism, and notches corresponding to the two film covering mechanisms are respectively arranged on the front conveying mechanism and the rear conveying mechanism in the conveying direction; the rotating ring (6-2) is provided with a membrane storage assembly, and the driving assembly can drive the rotating ring (6-2) to rotate; the side surface of the fixed frame (6-1) is provided with an annular track, the side end surface of the rotating ring (6-2) is provided with a sliding block, and the sliding block is slidably arranged on the annular track; the driving assembly comprises a driving motor, a driving belt wheel is arranged on an output shaft of the driving motor, and a driving belt is arranged on the driving belt wheel and the outer peripheral surface of the rotating ring (6-2) in a surrounding mode; the wire saw further comprises a straightening mechanism, wherein the straightening mechanism is arranged in front of the front conveying mechanism (3-1), the straightening mechanism comprises a straightening barrel (2), the axis of the straightening barrel (2) is arranged along the direction of a cable, and one end, far away from the sawing mechanism, of the straightening barrel (2) is in a diffuse bell mouth shape; the sawing mechanism comprises a mounting seat (4-1), the mounting seat (4-1) is arranged on the worktable, a sawing machine head (4-2) is hinged on the mounting seat, a saw blade (4-3) is arranged on the sawing machine head (4-2) and can drive the saw blade to rotate,
The method comprises the following steps:
Installation cable
S1, inserting one end of a cable to be sampled into and passing through a straightening cylinder to reach a conveyor belt of a front conveying mechanism;
S2, turning plates positioned at the front conveying mechanism are turned downwards under the action of springs, and compression rollers on the turning plates at two sides compress the cable on the front conveying mechanism;
S3, continuing paying off the cable, enabling the end of the cable to pass through a position sensor, triggering and starting a front conveying mechanism and a rear conveying mechanism by the position sensor;
s4, turning down a turning plate positioned at the rear conveying mechanism, and pressing the cable on the rear conveying mechanism by a pressing roller on the turning plate;
Cable sampling
S5, the front conveying mechanism and the rear conveying mechanism keep running, and the conveying length of the cable is calculated according to the distance between the front conveying mechanism and the rear conveying mechanism;
S6, when the cable is conveyed for a set length, the front conveying mechanism and the rear conveying mechanism stop running, and the sawing mechanism cuts off the cable;
Cable package
S7, the front conveying mechanism runs reversely, the rear conveying mechanism runs positively, and the cut ends of the cables respectively reach the two film covering mechanisms;
S8, an operator installs an envelope at a cable fracture, and adheres the end part of an insulating film in the film storage assembly to the cable or the installation envelope;
s9, rotating the rotating ring to wind the insulating film on the end part of the cable, and fixing the envelope;
S10, the front conveying mechanism continues to reversely run, and the residual cable exits the sampling and cutting device; and the rear conveying mechanism continuously operates in the forward direction, and the cable sample exits the sampling and cutting device.
2. The large-diameter cable sampling method according to claim 1, wherein a plurality of U-shaped grooves are formed in the upper edge of the turning plate (5-2) at intervals, mounting columns are formed between adjacent U-shaped grooves, the press roller (5-4) is mounted on the side face of the mounting column, the groove width of each U-shaped groove is not smaller than the width of the mounting column, and the U-shaped grooves on the two turning plates (5-2) are staggered in the cable length direction.
3. The method for sampling a large-diameter cable according to claim 1, wherein a plurality of groups of straightening rollers are mounted on the straightening barrel (2), each group of straightening rollers is arranged along the circumferential direction of the straightening barrel, the rotation axis of the straightening rollers is along the tangent line of the outer circumferential surface of the straightening barrel (2), and the outer circumferential surface of the straightening rollers protrudes out of the inner surface of the straightening barrel.
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