CN114577998B - Quality inspection device and method for wind power special cable production - Google Patents
Quality inspection device and method for wind power special cable production Download PDFInfo
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- CN114577998B CN114577998B CN202210387197.3A CN202210387197A CN114577998B CN 114577998 B CN114577998 B CN 114577998B CN 202210387197 A CN202210387197 A CN 202210387197A CN 114577998 B CN114577998 B CN 114577998B
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- 238000001514 detection method Methods 0.000 claims abstract description 173
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- 238000012372 quality testing Methods 0.000 claims 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
- B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
- B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
- B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0078—Testing material properties on manufactured objects
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The application relates to the technical field of cable production, in particular to a quality inspection device for wind power special cable production; the method comprises the steps that a first guide transmission device, a first cable detection device, a middle guide device, a second cable detection device and a second guide transmission device are sequentially arranged at the top of a rack at intervals along the long side direction of the rack; the first cable detection device consists of a second support frame, an annular connecting frame, a second bearing, an adjusting ring, a detection rod, a detection element, a middle guide unit and a support ring; the annular connecting frame is coaxially and fixedly arranged at the top of the second supporting frame; the adjusting ring is coaxially and rotatably connected to one end of the annular connecting frame through a second bearing; the detection rod is hinged at the end part of the adjusting ring; the tail end of each group of detection rods is also vertically provided with a detection element fixedly arranged on the outer wall of the adjusting ring; the application can perform full-automatic detection work on cables, has high precision and is suitable for cables with different diameters.
Description
Technical Field
The application relates to the technical field of cable production, in particular to a quality inspection device for wind power special cable production; the quality inspection method for wind power special cable production is also included.
Background
The intelligent wind power plant is a new revolution in the future wind power field, and an advanced technology is utilized to carry out wind power plant development, investment and financing, wind power plant design, supply chain service, engineering construction, customization of debugging operation and maintenance service and digital wind power plant construction integral solution, so that the intelligent wind power plant aims at delivering high-quality wind power plants with double excellent cost and generating capacity benefits to owners; the cable is used as a key part for transmitting electric power in wind power generation, plays a vital role, not only can transmit electric power, but also can be used as signal transmission, and the running condition of the cable is transmitted to an owner in real time, so that the operation and maintenance are facilitated;
in the cable manufacturing industry, it is necessary to wind a long length of cable layer by layer in order on a cable drum. The current flat cable can be realized manually or automatically. However, in the process of manufacturing the cable, due to the processes of molding, heating, water cooling and the like, a certain section of the cable may bulge, and the main method for bulge detection is to perform detection manually in the process of cable production, which requires a great deal of manpower; and secondly, whether the cable bulges or not is determined through after-sale feedback after the cable leaves the factory, but the process cannot be timely improved due to untimely after-sale feedback, and the cable generation quality is improved.
Therefore, a quality inspection device for wind power dedicated cable production is needed to solve the technical problems.
Disclosure of Invention
Accordingly, it is necessary to provide a quality inspection device and method for wind power dedicated cable production, aiming at the problems of the prior art.
In order to solve the problems in the prior art, the application adopts the following technical scheme:
a quality inspection device for wind power special cable production comprises a rack, a first guiding and transmitting device, a first cable detecting device, a middle guiding device, a second cable detecting device and a second guiding and transmitting device; the first guide transmission device, the first cable detection device, the middle guide device, the second cable detection device and the second guide transmission device are sequentially arranged at the top of the rack at intervals along the long side direction of the rack; the second cable detection device has the same structure as the first cable detection device; the second guiding and conveying device has the same structure as the first guiding and conveying device; the first cable detection device consists of a second support frame, an annular connecting frame, a second bearing, an adjusting ring, a detection rod, a detection element, a middle guide unit and a support ring; the second support frame is arranged on the frame in a vertical state; the annular connecting frame is coaxially and fixedly arranged at the top of the second supporting frame; the adjusting ring is coaxially and rotatably connected to one end of the annular connecting frame through a second bearing; the detection rods are hinged to the end part of the adjusting ring, and a plurality of groups of detection rods are arranged along the axis circumference array of the adjusting ring; the tail end of each group of detection rods is also vertically provided with a detection element fixedly arranged on the outer wall of the adjusting ring; the middle guide unit is coaxially and fixedly arranged in the adjusting ring; the detachable support of the support ring is arranged in the middle of the plurality of groups of detection rods, and the detection rods comprise second convex columns, first sliding grooves, bayonets, hinge holes, second springs and rollers; the second convex column is vertically arranged at one side of the tail end of the detection rod, which is close to the outer wall direction of the adjusting ring; the second convex column is elastically connected with the first convex column through a second spring; the first chute is arranged at the tail end of the detection rod in a penetrating way; the bayonet is arranged on the detection rod; the support ring is matched with the bayonet; the hinge hole is penetrated and arranged on the detection rod, and is in hinged fit connection with the end hinge part through a pin shaft; the gyro wheel rotatable setting is in the measuring rod detection end tip.
Preferably, the first guiding and conveying device comprises a lifting table, a first guiding and conveying assembly, a second guiding and conveying assembly, a first supporting frame, a driving and guiding group and an elastic guiding group; the lifting table is arranged on the frame in a vertical state; the first guide transmission assembly and the second guide transmission assembly are arranged on the lifting platform at intervals in a vertical state along the long side direction of the lifting platform; the second guiding and transmitting assembly and the first guiding and transmitting assembly have the same structure; the second guiding and transmitting assembly consists of a first supporting frame, a driving guiding group and an elastic guiding group; the lifting table is arranged in a vertical state; the driving guide group is rotatably arranged at the bottom of the first support frame in a crossing way; the elastic guide group is vertically arranged at the upper end of the first support frame in a sliding manner relative to the driving guide group; the first support frame further comprises a fixed seat, a first vertical plate, a second vertical plate and an oblong chute; the first vertical plate and the second vertical plate are oppositely arranged on the fixing seat in a vertical state; a gap for installing a driving guide group and an elastic guide group is reserved between the second vertical plate and the second vertical plate; the tops of the first vertical plate and the second vertical plate are also provided with oblong sliding grooves in a penetrating way.
Preferably, the driving guide group comprises a first guide wheel, a first bearing, a first belt wheel, a servo motor, a second belt wheel and a synchronous belt; the first guide wheel is rotatably arranged between the first vertical plate and the second vertical plate in a crossing way through a first bearing, and is arranged close to the bottoms of the first vertical plate and the second vertical plate; the first belt pulley is coaxially and fixedly arranged at one end of the first guide wheel; the servo motor is horizontally arranged on the fixed seat; an output shaft of the servo motor passes through the first vertical plate and is arranged towards one side of the first belt wheel; the second belt pulley is coaxially and fixedly arranged at the output end of the servo motor; the first belt pulley and the second belt pulley are in transmission connection through a synchronous belt.
Preferably, the elastic guide group comprises a second guide wheel, an elastic pressing component, a first connecting part, a vertical rod, a guide rod, a first spring and a fixing frame; the second guide wheel is transversely arranged between the first vertical plate and the second vertical plate; two ends of the second guide wheel are respectively connected with the oblong sliding groove in a sliding fit manner; the elastic pressing assemblies are provided with two groups, and the two groups of elastic pressing assemblies are respectively and vertically arranged at two sides of the second guide wheel in a mirror image state; the elastic pressing component consists of a first connecting part, a vertical rod, a guide rod, a first spring and a fixing frame; the vertical rod is fixedly arranged at the top of the first vertical plate; the first connecting part is coaxially and rotatably connected with one end of the second guide wheel; the vertical rod and the guide rod are arranged at the top of the first connecting part in a vertical state; the ends of the vertical rod and the guide rod pass through the fixing frame and are connected with the fixing frame in a sliding fit manner; the first spring is coaxially sleeved outside the vertical rod; one end of the first spring is in abutting connection with the first connecting part, and the other end of the first spring is in abutting connection with the fixing frame.
Preferably, the annular connecting frame comprises a fixed ring and an arc chute; the fixed ring is coaxially and fixedly arranged at the top of the second support frame through bolts; the arc chute penetrates through the connecting end of the fixing ring.
Preferably, the adjusting ring comprises a first stud, a threaded stud, a bolt and an end hinge; the first convex column is coaxially and rotatably arranged on one side of the fixed ring through the second bearing; the first convex column is radially arranged on the outer wall of the adjusting ring; the first convex column is far away from the second bearing and is close to the other end of the adjusting ring; the threaded column is vertically arranged on the surface of the connecting end of the adjusting ring; the thread column passes through the arc chute and is connected with the arc chute in a sliding way; the bolt is screwed on the threaded column; the end hinge part is arranged on the outer wall of the vertical adjusting ring; the end hinge part is arranged at one end close to the first convex column; the end hinge parts are provided with a plurality of groups along the axis circumference array of the adjusting ring, and the plurality of groups of end hinge parts are arranged in one-to-one correspondence with the plurality of groups of detecting rods.
Preferably, the detection element comprises a third support frame, a second chute, a first sliding block, a post, an induction plate, a travel sensor and a second mounting frame; the third support frame is arranged outside the adjusting ring in a vertical state; the third supporting frame is arranged right below the tail end of the detection rod; a second chute is also formed in the third support frame; the first sliding block is arranged in the second sliding groove in a sliding way; the post rod is vertically arranged at one side of the first sliding block; the rod part of the post rod passes through the first chute and is connected with the first chute in a sliding fit manner; the induction plate is fixedly arranged at the end part of the post rod in a horizontal state; the stroke sensor is fixedly arranged on the third support frame in a vertical state through the second mounting frame; the stroke sensor is arranged right below the induction plate; the induction source of the travel sensor is in interference connection with the induction plate.
Preferably, the middle guide unit comprises a connecting ring, a rectangular through hole, a third sliding groove, a second sliding block, a first opening, a first rotating rod and a locking bolt; the connecting ring is coaxially and fixedly arranged in the middle of the adjusting ring, and the rectangular through hole is formed in the middle of the connecting ring in a penetrating manner; third sliding grooves are formed in two sides of the rectangular through hole; the second sliding block is vertically and slidably arranged in the rectangular through hole; the first opening is arranged on the end hinge part in a penetrating way; the first opening is arranged in a V shape; the first rotating rod is rotatably embedded in the first opening; one side of the second sliding block is also provided with a threaded hole; the locking bolt is screwed in the threaded hole.
Preferably, the middle guide device comprises a telescopic frame, a guide block, a second opening and a second rotating rod; the telescopic frame is arranged on the frame in a vertical state; the guide block is horizontally arranged at the top of the expansion bracket; the second opening is arranged on the guide block in a penetrating way; the second rotating rod is embedded into the second opening in a transmission way; the second rotating rod is provided in plurality along the long-side direction rectangular array of the guide block.
A quality inspection method for wind power special cable production comprises the following steps:
s1, firstly, a cable sequentially passes through a first guiding and transmitting device, a first cable detecting device, a middle guiding device, a second cable detecting device and a second guiding and transmitting device through manual guiding;
s2, accessing an external power supply to drive the first guiding transmission device and the second guiding transmission device to guide and transmit the cable;
s3, resetting the detection value of the detection element in the transmission state, so that the detection element is matched with the detection rod to be adjusted to a detection state corresponding to the diameter of the detected cable;
s4, after the detection element detects vertical zeroing, when the outer wall of the cable bulges, the bulge part bulges to drive the detection end of the detection rod to lift, and the tail end of the detection rod descends and is pressed to the detection end of the detection element while the detection end of the detection rod is lifted; when the detection value is changed and the detection value is vertical to exceed the preset range, the detection element sends an electric signal to the alarm device, and the alarm device is driven to send an alarm to remind workers.
Compared with the prior art, the application has the beneficial effects that:
1. according to the application, through the cooperation of the first guide transmission assembly and the second guide transmission assembly, the operation of transmitting the cable towards the direction of the first cable detection device, maintaining horizontal transmission and driving the cable to advance is realized, so that the coaxiality of the cable and the detection end of the first cable detection device in the automatic transmission process is ensured, and the accuracy of detection precision is further ensured.
2. According to the application, through the cooperation of the detection rod and the detection element, the work of accurately detecting the outer wall of the cable is realized, the omnibearing contact detection is carried out on the outer wall of the cable, the detection is ensured to be more complete, the detection form can be changed according to the thickness of the cable, and the detection method is suitable for detecting cables with different diameters.
Drawings
FIG. 1 is a perspective view of the present application;
fig. 2 is a front view of a first guidance transmission assembly of the present application;
fig. 3 is a perspective view of a first guidance and transmission assembly of the present application;
FIG. 4 is a perspective view of the middle guide of the present application;
FIG. 5 is a side view of the first cable detection device of the present application;
FIG. 6 is a front view of the first cable detection device of the present application;
FIG. 7 is a cross-sectional view taken at A-A of FIG. 6;
FIG. 8 is a partial perspective view of the first cable detection device of the present application;
FIG. 9 is a perspective view of a test lever and test element of the present application;
FIG. 10 is a perspective view of a central guide unit of the present application;
fig. 11 is an exploded perspective view of the first cable detection apparatus of the present application.
The reference numerals in the figures are:
1-a frame;
2-a first guidance transmission device; 2 a-lifting platform; 2 b-a first guidance transfer assembly; 2 c-a second guidance transfer assembly; 2 d-a first support frame; 2d 1-fixing seats; 2d 2-first vertical plate; 2d 3-second vertical plate; 2d 4-oblong chute; 2 e-driving the lead group; 2e 1-a first guiding wheel; 2e 2-first bearing; 2e 3-a first pulley; 2e 4-servo motor; 2e 5-a second pulley; 2e 6-synchronous belt; 2 f-elastic guide group; 2f 1-a second guiding wheel; 2f 2-elastic hold-down assembly; 2f 3-a first connection; 2f 4-vertical bars; 2f 5-guide bar; 2f 6-a first spring; 2f 7-fixing frame;
3-a first cable detection device; 3 A-A second support frame; 3 b-ring-shaped connection frame; 3b 1-a fixing ring; 3b 2-arc chute; 3 c-a second bearing; 3 d-adjusting ring; 3d 1-first posts; 3d 2-threaded post; 3d 3-bolts; 3d 4-end hinge; 3 e-a detection rod; 3e 1-second posts; 3e 2-a first chute; 3e 3-bayonet; 3e 4-hinge holes; 3e 5-a second spring; 3e 6-roller; 3 f-a detection element; 3f 1-a third support frame; 3f 2-a second chute; 3f 3-a first slider; 3f 4-struts; 3f 5-sensing plate; 3f 6-stroke sensor; 3f 7-a second mount; 3 g-middle guide unit; 3g of a 1-connecting ring; 3g 2-rectangular through holes; 3g of a third chute; 3g 4-second slider; 3g 5-first openings; 3g 6-first rotating lever; 3g 7-locking bolt; 3 h-a support ring;
4-a middle guide; 4 A-A telescopic frame; 4 b-a guide block; 4 c-a second opening; 4 d-a second rotating lever;
5-a second cable detection device;
6-a second guidance transmission device.
Detailed Description
The application will be described in further detail with reference to the drawings and the detailed description. The embodiments of the application have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the application in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the application and the practical application, and to enable others of ordinary skill in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.
As shown in fig. 1 to 11, the present application provides:
a quality inspection device for wind power special cable production comprises a frame 1, a first guiding and transmitting device 2, a first cable detecting device 3, a middle guiding device 4, a second cable detecting device 5 and a second guiding and transmitting device 6; the first guiding and transmitting device 2, the first cable detecting device 3, the middle guiding device 4, the second cable detecting device 5 and the second guiding and transmitting device 6 are sequentially arranged at the top of the frame 1 at intervals along the long side direction of the frame 1; the second cable detection device 5 has the same structure as the first cable detection device 3; the second guidance and transmission device 6 has the same structure as the first guidance and transmission device 2; the first cable detection device 3 consists of a second support frame 3a, an annular connecting frame 3b, a second bearing 3c, an adjusting ring 3d, a detection rod 3e, a detection element 3f, a middle guide unit 3g and a support ring 3 h; the second supporting frame 3a is arranged on the frame 1 in a vertical state; the annular connecting frame 3b is coaxially and fixedly arranged at the top of the second supporting frame 3 a; the adjusting ring 3d is coaxially and rotatably connected to one end of the annular connecting frame 3b through a second bearing 3 c; the detection rods 3e are hinged to the end part of the adjusting ring 3d, and a plurality of groups of detection rods 3e are arranged in a circumferential array along the axis of the adjusting ring 3 d; the tail end of each group of detection rods 3e is also vertically provided with a detection element 3f fixedly arranged on the outer wall of the adjusting ring 3 d; the middle guide unit 3g is coaxially and fixedly arranged in the adjusting ring 3 d; the detachable support of the support ring 3h is arranged in the middle of the plurality of groups of detection rods 3 e.
Based on the above embodiment, when the cable is required to be subjected to bulge detection in the working state, a worker firstly introduces one end portion of the cable into the first guiding and transmitting device 2, the first cable detecting device 3, the middle guiding device 4, the second cable detecting device 5 and the second guiding and transmitting device 6 in sequence, drives and transmits the cable through the first guiding and transmitting device 2, and after the cable is introduced, firstly carries out correction and adjustment work on the detecting rod 3e and the detecting element 3f in the first cable detecting device 3, so that the numerical value detected on the detecting element 3f is zeroed; because the diameters of the detected cables are different, before the cables with different diameters are detected, the detection of the detection element 3f is subjected to zero setting vertically, the detection end of the detection rod 3e is always in sliding contact with the outer wall of the cable, in a transmission state, once the outer wall of the cable bulges, the output end of the detection rod 3e is lifted, and meanwhile, the tail end of the detection rod 3e also descends along with the detection rod until the detection end of the detection element 3f is pressed down, the numerical value changes, and when the detection vertical exceeds a preset range, an electric signal is generated towards the alarm device, so that the alarm device sends an alarm prompt; the middle guiding device 4 is used for guiding and supporting the cables when the cables are transmitted from the first cable detecting device 3 to the second cable detecting device 5, and the situation that the cables fall down in the middle to cause inaccurate detection data of the first cable detecting device 3 and the second cable detecting device 5 is avoided.
Further, as shown in fig. 2:
the first guiding and conveying device 2 comprises a lifting table 2a, a first guiding and conveying assembly 2b, a second guiding and conveying assembly 2c, a first supporting frame 2d, a driving guiding group 2e and an elastic guiding group 2f; the lifting platform 2a is arranged on the frame 1 in a vertical state; the first guiding and conveying assembly 2b and the second guiding and conveying assembly 2c are arranged on the lifting platform 2a at intervals in a vertical state along the long side direction of the lifting platform 2 a; the second guidance and transmission assembly 2c and the first guidance and transmission assembly 2b have the same structure; the second guiding and conveying assembly 2c consists of a first supporting frame 2d, a driving guiding group 2e and an elastic guiding group 2f; the lifting platform 2a is arranged in a vertical state; the driving guide group 2e is rotatably arranged at the bottom of the first support frame 2d in a crossing manner; the elastic guide group 2f is vertically arranged at the upper end of the first support frame 2d in a sliding manner relative to the driving guide group 2 e; the first support frame 2d further comprises a fixed seat 2d1, a first vertical plate 2d2, a second vertical plate 2d3 and an oblong chute 2d4; the first vertical plate 2d2 and the second vertical plate 2d3 are oppositely arranged on the fixed seat 2d1 in a vertical state; a gap for installing the driving guide group 2e and the elastic guide group 2f is reserved between the second vertical plate 2d3 and the second vertical plate 2d 3; the tops of the first vertical plate 2d2 and the second vertical plate 2d3 are also provided with an oblong chute 2d4 in a penetrating way.
Based on the above embodiment, the lifting platform 2a is configured to drive the first guiding and transporting assemblies 2b and 2c to vertically reciprocate, so as to ensure that when cables with different diameters are guided and transported, coaxiality of the cables and the first cable detecting device 3 is always maintained, so as to ensure detection precision, when the cables are required to be transported, a worker drags and drops the cables to the middle of the driving guiding group 2e, then lifts the elastic guiding group 2f to insert the cables between the driving guiding group 2e and the elastic guiding group 2f, and when the cables are required to be driven to move, only an external power supply is required to be connected to drive the elastic guiding group 2f to work, and the output shaft of the elastic guiding group 2f rotates to rub the cables to advance, so that driving friction transmission of the cables is realized; the oblong chute 2d4 is used for vertically sliding and adjusting the elastic guide group 2f between the first vertical plate 2d2 and the second vertical plate 2d 3.
Further, as shown in fig. 2 and 3:
the drive guide group 2e includes a first guide wheel 2e1, a first bearing 2e2, a first pulley 2e3, a servo motor 2e4, a second pulley 2e5, and a timing belt 2e6; the first guide wheel 2e1 is rotatably arranged between the first vertical plate 2d2 and the second vertical plate 2d3 in a crossing manner through a first bearing 2e2, and the first guide wheel 2e1 is arranged close to the bottoms of the first vertical plate 2d2 and the second vertical plate 2d 3; the first belt pulley 2e3 is coaxially and fixedly arranged at one end of the first guide wheel 2e 1; the servo motor 2e4 is horizontally arranged on the fixed seat 2d 1; an output shaft of the servo motor 2e4 passes through the first vertical plate 2d2 and is arranged towards one side of the first belt wheel 2e 3; the second belt pulley 2e5 is coaxially and fixedly arranged at the output end of the servo motor 2e 4; the first belt pulley 2e3 and the second belt pulley 2e5 are in transmission connection through a synchronous belt 2e 6.
Based on the above embodiment, when the cable is required to be transmitted, the external power supply is firstly connected to drive the servo motor 2e4 to work, the output shaft of the servo motor 2e4 rotates to drive the second belt pulley 2e5 to rotate, the second belt pulley 2e5 drives the first belt pulley 2e3 to rotate through the transmission of the synchronous belt 2e6 in a rotating state, the first belt pulley 2e3 drives the first guide pulley 2e1 to rotate, the first guide pulley 2e1 rubs the cable in the rotating state, and further the friction driving transmission work of the cable is completed.
Further, fig. 2 and 3 show:
the elastic guide group 2f comprises a second guide wheel 2f1, an elastic pressing component 2f2, a first connecting part 2f3, a vertical rod 2f4, a guide rod 2f5, a first spring 2f6 and a fixing frame 2f7; the second guide wheel 2f1 is transversely arranged between the first vertical plate 2d2 and the second vertical plate 2d 3; two ends of the second guiding wheel 2f1 are respectively connected with the oblong chute 2d4 in a sliding fit manner; the elastic pressing assemblies 2f2 are provided with two groups, and the two groups of elastic pressing assemblies 2f2 are vertically arranged at two sides of the second guide wheel 2f1 respectively in a mirror image state; the elastic pressing component 2f2 consists of a first connecting part 2f3, a vertical rod 2f4, a guide rod 2f5, a first spring 2f6 and a fixing frame 2f7; the vertical rod 2f4 is fixedly arranged at the top of the first vertical plate 2d 2; the first connecting part 2f3 is coaxially and rotatably connected with one end of the second guiding wheel 2f 1; the vertical rod 2f4 and the guide rod 2f5 are arranged at the top of the first connecting part 2f3 in a vertical state; the end parts of the vertical rod 2f4 and the guide rod 2f5 pass through the fixed frame 2f7 and are connected with the fixed frame 2f7 in a sliding fit manner; the first spring 2f6 is coaxially sleeved and arranged outside the vertical rod 2f 4; one end of the first spring 2f6 is in abutting connection with the first connecting portion 2f3, and the other end is in abutting connection with the fixing frame 2f 7.
Based on the above embodiment, in the working state, when the cable is conveyed through the driving guide group 2e, the second guide wheel 2f1 is pressed down to the cable feeding surface under the self elastic force of the first spring 2f6, the cable is pressed down towards the outside of the first guide wheel 2e1, the cable is guided and limited, and meanwhile, the friction force between the first guide wheel 2e1 and the outer wall of the cable is increased when the cable is pressed down onto the first guide wheel 2e1 under the action of external force, so that the cable is smoother when the cable is conveyed through the driving guide wheel 2e1, and friction lines are further arranged on the friction driving surface of the guide wheel for increasing the friction force between the guide wheel and the cable.
Further, as shown in fig. 11:
the annular connecting frame 3b comprises a fixed ring 3b1 and an arc chute 3b2; the fixed ring 3b1 is coaxially and fixedly arranged at the top of the second supporting frame 3a through bolts; the arc chute 3b2 is arranged at the connecting end of the fixed ring 3b1 in a penetrating way.
Based on the above embodiment, in the working state, when the worker rotates and adjusts the adjusting ring 3d, the limiting guide work is performed on the adjusting ring 3 d.
Further, as shown in fig. 5 and 8:
the adjusting ring 3d comprises a first boss 3d1, a threaded post 3d2, a bolt 3d3 and an end hinge 3d4; the first convex column 3d1 is coaxially and rotatably arranged on one side of the fixed ring 3b1 through the second bearing 3 c; the first convex column 3d1 is radially arranged on the outer wall of the adjusting ring 3 d; the first convex column 3d1 is far away from the second bearing 3c and is close to the other end of the adjusting ring 3 d; the threaded column 3d2 is vertically arranged on the surface of the connecting end of the adjusting ring 3 d; the thread column 3d2 passes through the arc chute 3b2 and is connected with the arc chute 3b2 in a sliding way; the bolt 3d3 is screwed on the threaded column 3d 2; the end hinge part 3d4 is arranged on the outer wall of the vertical adjusting ring 3 d; the end hinge part 3d4 is arranged at one end close to the first convex column 3d 1; the end hinge parts 3d4 are circumferentially arrayed along the axis of the adjusting ring 3d with a plurality of groups, and the plurality of groups of end hinge parts 3d4 are arranged in one-to-one correspondence with the plurality of groups of detecting rods 3 e.
Based on the above embodiment, when the operator rotates and adjusts the adjusting ring 3d in the working state, the operator only needs to unscrew the bolt 3d3 to rotate and adjust the adjusting ring 3d, and only needs to screw the bolt 3d3 after adjusting to a proper angle; because the diameters of the detection cables are different, when the cables with larger diameters are detected, the detection ends of the plurality of groups of detection rods 3e are spread, gaps are formed among the plurality of groups of detection rods 3e, and at the moment, the second cable detection device 5 can be adjusted through rotation, so that the detection ends between the two groups of detection devices are staggered, the defects can be repaired, and the high-precision detection work of the cables is completed.
Further, as shown in fig. 8 and 9:
the detection rod 3e comprises a second convex column 3e1, a first chute 3e2, a bayonet 3e3, a hinge hole 3e4, a second spring 3e5 and a roller 3e6; the second convex column 3e1 is vertically arranged at one side of the tail end of the detection rod 3e, which is close to the outer wall direction of the adjusting ring 3 d; the second convex column 3e1 is elastically connected with the first convex column 3d1 through a second spring 3e 5; the first chute 3e2 is arranged at the tail end of the detection rod 3e in a penetrating way; the bayonet 3e3 is arranged on the detection rod 3 e; the support ring 3h is matched with the bayonet 3e 3; the hinge hole 3e4 is penetrated and arranged on the detection rod 3e, and the hinge hole 3e4 is in hinge fit connection with the end hinge part 3d4 through a pin shaft; the roller 3e6 is rotatably arranged at the end part of the detection end of the detection rod 3 e.
Based on the above embodiment, since the first protruding column 3d1 and the second protruding column 3e1 are elastically connected through the second spring 3e5, the detection end of the detection rod 3e is always pushed towards the axis direction of the adjusting ring 3d under the action of the self elastic force of the second spring 3e5, so that the detection end of the detection rod 3e can be always attached to the outer wall of the cable, and the bulge detection work of the outer wall of the cable is completed by matching with the detection element 3 f.
Further, as shown in fig. 9:
the detection element 3f comprises a third support frame 3f1, a second chute 3f2, a first sliding block 3f3, a post 3f4, an induction plate 3f5, a stroke sensor 3f6 and a second mounting frame 3f7; the third supporting frame 3f1 is arranged outside the adjusting ring 3d in a vertical state; the third supporting frame 3f1 is arranged right below the tail end of the detecting rod 3 e; the third support frame 3f1 is also provided with a second chute 3f2; the first sliding block 3f3 is slidably arranged in the second sliding groove 3f2; the post 3f4 is vertically arranged on one side of the first sliding block 3f 3; the rod part of the post rod 3f4 passes through the first chute 3e2 and is connected with the first chute 3e2 in a sliding fit manner; the induction plate 3f5 is fixedly arranged at the end part of the post rod 3f4 in a horizontal state; the stroke sensor 3f6 is fixedly arranged on the third supporting frame 3f1 in a vertical state through the second mounting frame 3f7; the stroke sensor 3f6 is arranged right below the sensing plate 3f 5; the sensing source of the stroke sensor 3f6 is in abutting connection with the sensing plate 3f 5.
Based on the above embodiment, when the outer wall of the cable is threaded and bulged in the working state, the detection end of the detection element 3f, that is, the roller 3e6 is jacked up after being pressed down to the bulged position, the roller 3e6 is jacked up and the tail end of the detection rod 3e descends, the tail end of the detection rod 3e applies pressure to the outer wall of the column rod 3f4 in the descending process, so that the column rod 3f4 moves synchronously, at this time, the output end of the stroke sensor 3f6 in abutting connection with the induction plate 3f5 contracts, the numerical amplitude of the detection end changes, and when the contraction forms beyond the preset range, the stroke sensor 3f6 sends an electric signal towards the alarm device and drives the alarm device to give an alarm to remind workers, thereby being convenient for the workers to adjust the cable production process in time.
Further, as shown in fig. 10:
the middle guide unit 3g comprises a connecting ring 3g1, a rectangular through hole 3g2, a third chute 3g3, a second sliding block 3g4, a first opening 3g5, a first rotating rod 3g6 and a locking bolt 3g7; the connecting ring 3g1 is coaxially and fixedly arranged in the middle of the adjusting ring 3d, and the rectangular through hole 3g2 is arranged in the middle of the connecting ring 3g1 in a penetrating way; a third chute 3g3 is also arranged on two sides of the rectangular through hole 3g 2; the second sliding block 3g4 is vertically and slidably arranged in the rectangular through hole 3g 2; the first opening 3g5 is penetrated and opened on the end hinge part 3d4; the first opening 3g5 is arranged in a V shape; a first rotating rod 3g6 is rotatably embedded in the first opening 3g 5; one side of the second sliding block 3g4 is also provided with a threaded hole; the locking bolt 3g7 is screwed in the threaded hole.
Based on the above embodiment, the middle guiding unit 3g is configured to guide and transmit the cable before the direction detection of the roller 3e6, where the cable is placed at the first opening 3g5 in the transmission state, the first opening 3g5 is a V-shaped notch, and the first rotating rod 3g6 is configured to guide and transmit the cable on the outer wall of the cable, so that the cable is smoothly transmitted while the coaxiality of the cable is maintained; when the diameter of the cable is larger, the worker can unlock the limit of the second sliding block 3g4 by screwing and unscrewing the locking bolt 3g7, and after the second sliding block 3g4 is slidably adjusted to a proper angle, the worker can limit and fix the second sliding block 3g4 by screwing and screwing the locking bolt 3g 7.
Further, as shown in fig. 4:
the middle guide device 4 comprises a telescopic frame 4a, a guide block 4b, a second opening 4c and a second rotating rod 4d; the telescopic frame 4a is arranged on the frame 1 in a vertical state; the guide block 4b is horizontally arranged at the top of the telescopic frame 4 a; the second opening 4c is penetrated and arranged on the guide block 4 b; the second rotating rod 4d is in transmission embedded in the second opening 4 c; the second rotating lever 4d is provided in a plurality in a rectangular array along the longitudinal direction of the guide block 4 b.
Based on the above embodiment, the expansion bracket 4a is a prior art, which is not described here, and the cable is guided to be transmitted by matching the guiding block 4b and the second rotating rod 4d when the cable is transmitted in the direction of the second cable detecting device 5 through the first cable detecting device 3, so as to avoid the influence on the detection precision caused by slight slump of the cable in the transmission process.
A quality inspection method for wind power special cable production comprises the following steps:
s1, firstly, a cable is guided by a person to sequentially pass through a first guiding and transmitting device 2, a first cable detecting device 3, a middle guiding device 4, a second cable detecting device 5 and a second guiding and transmitting device 6;
s2, accessing an external power supply to drive the first guiding and transmitting device 2 and the second guiding and transmitting device 6 to guide and transmit the cable;
s3, zeroing a detection value of the detection element 3f in the transmission state, so that the detection element 3f is matched with the detection rod 3e to be adjusted to a detection state corresponding to the diameter of the detected cable;
s4, after the detection element 3f detects vertical zeroing, when the outer wall of the cable bulges, the bulge part bulges to drive the detection end of the detection rod 3e to lift, and the tail end of the detection rod 3e descends and is pressed down to the detection end of the detection element 3f while the detection end of the detection rod 3e is lifted; the detecting element 3f detects the change of the numerical value, and when the detection is vertical to exceed the preset range, the detecting element 3f sends out an electric signal to the alarm device, and the alarm device is driven to send out an alarm to remind workers.
The application can perform full-automatic detection work on cables, has wide detection range and high precision, and is suitable for cables with different diameters.
It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present application without the inventive step, are intended to be within the scope of the present application. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (9)
1. The quality inspection device for the production of the special cable for wind power is characterized by comprising a frame (1), a first guiding and transmitting device (2), a first cable detection device (3), a middle guiding device (4), a second cable detection device (5) and a second guiding and transmitting device (6); the first guiding and conveying device (2), the first cable detection device (3), the middle guiding device (4), the second cable detection device (5) and the second guiding and conveying device (6) are sequentially arranged at the top of the frame (1) at intervals along the long side direction of the frame (1); the second cable detection device (5) has the same structure as the first cable detection device (3); the second guiding and conveying device (6) has the same structure as the first guiding and conveying device (2); the first cable detection device (3) consists of a second support frame (3 a), an annular connecting frame (3 b), a second bearing (3 c), an adjusting ring (3 d), a detection rod (3 e), a detection element (3 f), a middle guide unit (3 g) and a support ring (3 h); the second supporting frame (3 a) is arranged on the frame (1) in a vertical state; the annular connecting frame (3 b) is coaxially and fixedly arranged at the top of the second supporting frame (3 a); the adjusting ring (3 d) is coaxially and rotatably connected to one end of the annular connecting frame (3 b) through a second bearing (3 c); the detection rods (3 e) are hinged to the end part of the adjusting ring (3 d), and a plurality of groups of detection rods (3 e) are arranged along the axis circumference array of the adjusting ring (3 d); the tail end of each group of detection rods (3 e) is also vertically provided with a detection element (3 f) fixedly arranged on the outer wall of the adjusting ring (3 d); the middle guide unit (3 g) is coaxially and fixedly arranged in the adjusting ring (3 d); the support ring (3 h) is detachably supported and arranged in the middle of the plurality of groups of detection rods (3 e); the detection rod (3 e) comprises a second convex column (3 e 1), a first sliding groove (3 e 2), a bayonet (3 e 3), a hinge hole (3 e 4), a second spring (3 e 5) and a roller (3 e 6); the second convex column (3 e 1) is vertically arranged at one side of the tail end of the detection rod (3 e) close to the outer wall direction of the adjusting ring (3 d); the second convex column (3 e 1) is elastically connected with the first convex column (3 d 1) through a second spring (3 e 5); the first chute (3 e 2) is arranged at the tail end of the detection rod (3 e) in a penetrating way; the bayonet (3 e 3) is arranged on the detection rod (3 e); the support ring (3 h) is matched with the bayonet (3 e 3); the hinge hole (3 e 4) is arranged on the detection rod (3 e) in a penetrating way, and the hinge hole (3 e 4) is connected with the end hinge part (3 d 4) in a hinge fit way through a pin shaft; the roller (3 e 6) is rotatably arranged at the end part of the detection end of the detection rod (3 e).
2. The quality inspection device for wind power dedicated cable production according to claim 1, wherein the first guiding and conveying device (2) comprises a lifting table (2 a), a first guiding and conveying assembly (2 b), a second guiding and conveying assembly (2 c), a first supporting frame (2 d), a driving guiding group (2 e) and an elastic guiding group (2 f); the lifting table (2 a) is arranged on the frame (1) in a vertical state; the first guide transmission assembly (2 b) and the second guide transmission assembly (2 c) are arranged on the lifting platform (2 a) at intervals in a vertical state along the long side direction of the lifting platform (2 a); the second guiding and conveying component (2 c) and the first guiding and conveying component (2 b) have the same structure; the second guiding and conveying assembly (2 c) comprises a first supporting frame (2 d), a driving guiding group (2 e) and an elastic guiding group (2 f); the lifting table (2 a) is arranged in a vertical state; the driving guide group (2 e) is rotatably arranged at the bottom of the first support frame (2 d) in a crossing way; the elastic guide group (2 f) is vertically arranged at the upper end of the first support frame (2 d) in a sliding manner relative to the driving guide group (2 e); the first support frame (2 d) further comprises a fixed seat (2 d 1), a first vertical plate (2 d 2), a second vertical plate (2 d 3) and an oblong chute (2 d 4); the first vertical plate (2 d 2) and the second vertical plate (2 d 3) are oppositely arranged on the fixed seat (2 d 1) in a vertical state; a gap for installing the driving guide group (2 e) and the elastic guide group (2 f) is reserved between the second vertical plate (2 d 3) and the second vertical plate (2 d 3); the tops of the first vertical plate (2 d 2) and the second vertical plate (2 d 3) are also provided with oblong sliding grooves (2 d 4) in a penetrating way.
3. The quality inspection device for wind power dedicated cable production according to claim 2, wherein the drive guide group (2 e) comprises a first guide wheel (2 e 1), a first bearing (2 e 2), a first pulley (2 e 3), a servo motor (2 e 4), a second pulley (2 e 5) and a timing belt (2 e 6); the first guide wheel (2 e 1) is rotatably arranged between the first vertical plate (2 d 2) and the second vertical plate (2 d 3) in a crossing way through a first bearing (2 e 2), and the first guide wheel (2 e 1) is arranged close to the bottoms of the first vertical plate (2 d 2) and the second vertical plate (2 d 3); the first belt wheel (2 e 3) is coaxially and fixedly arranged at one end of the first guide wheel (2 e 1); the servo motor (2 e 4) is horizontally arranged on the fixed seat (2 d 1); an output shaft of the servo motor (2 e 4) passes through the first vertical plate (2 d 2) and is arranged towards one side of the first belt wheel (2 e 3); the second belt wheel (2 e 5) is coaxially and fixedly arranged at the output end of the servo motor (2 e 4); the first belt wheel (2 e 3) and the second belt wheel (2 e 5) are in transmission connection through a synchronous belt (2 e 6).
4. A quality inspection device for wind power dedicated cable production according to claim 3, wherein the elastic guiding group (2 f) comprises a second guiding wheel (2 f 1), an elastic pressing component (2 f 2), a first connecting part (2 f 3), a vertical rod (2 f 4), a guiding rod (2 f 5), a first spring (2 f 6) and a fixing frame (2 f 7); the second guide wheel (2 f 1) is transversely arranged between the first vertical plate (2 d 2) and the second vertical plate (2 d 3); two ends of the second guiding wheel (2 f 1) are respectively connected with the oblong sliding groove (2 d 4) in a sliding fit manner; the elastic pressing assemblies (2 f 2) are provided with two groups, and the two groups of elastic pressing assemblies (2 f 2) are respectively and vertically arranged at two sides of the second guide wheel (2 f 1) in a mirror image state; the elastic pressing component (2 f 2) consists of a first connecting part (2 f 3), a vertical rod (2 f 4), a guide rod (2 f 5), a first spring (2 f 6) and a fixing frame (2 f 7); the vertical rod (2 f 4) is fixedly arranged at the top of the first vertical plate (2 d 2); the first connecting part (2 f 3) is coaxially and rotatably connected with one end of the second guiding wheel (2 f 1); the vertical rod (2 f 4) and the guide rod (2 f 5) are arranged at the top of the first connecting part (2 f 3) in a vertical state; the end parts of the vertical rod (2 f 4) and the guide rod (2 f 5) penetrate through the fixed frame (2 f 7) and are connected with the fixed frame (2 f 7) in a sliding fit manner; the first spring (2 f 6) is coaxially sleeved and arranged outside the vertical rod (2 f 4); one end of the first spring (2 f 6) is in abutting connection with the first connecting part (2 f 3), and the other end of the first spring is in abutting connection with the fixing frame (2 f 7).
5. The quality inspection device for wind power dedicated cable production according to claim 4, wherein the annular connecting frame (3 b) comprises a fixed ring (3 b 1) and an arc chute (3 b 2); the fixed ring (3 b 1) is coaxially and fixedly arranged at the top of the second supporting frame (3 a) through bolts; the arc chute (3 b 2) is arranged at the connecting end of the fixed ring (3 b 1) in a penetrating way.
6. The quality inspection device and method for wind power dedicated cable production according to claim 5, wherein the adjusting ring (3 d) comprises a first protruding column (3 d 1), a threaded column (3 d 2), a bolt (3 d 3) and an end hinge (3 d 4); the first convex column (3 d 1) is coaxially and rotatably arranged on one side of the fixed ring (3 b 1) through the second bearing (3 c); the first convex column (3 d 1) is radially arranged on the outer wall of the adjusting ring (3 d); the first convex column (3 d 1) is far away from the second bearing (3 c) and is close to the other end of the adjusting ring (3 d); the threaded column (3 d 2) is vertically arranged on the surface of the connecting end of the adjusting ring (3 d); the thread column (3 d 2) passes through the arc chute (3 b 2) and is connected with the arc chute (3 b 2) in a sliding way; the bolt (3 d 3) is screwed on the threaded column (3 d 2); the end hinge part (3 d 4) is arranged on the outer wall of the vertical adjusting ring (3 d); the end hinge part (3 d 4) is arranged at one end close to the first convex column (3 d 1); the end hinge parts (3 d 4) are provided with a plurality of groups along the axial line circumferential array of the adjusting ring (3 d), and the plurality of groups of end hinge parts (3 d 4) are arranged in one-to-one correspondence with the plurality of groups of detecting rods (3 e).
7. The quality inspection device for wind power dedicated cable production according to claim 6, wherein the detection element (3 f) comprises a third support frame (3 f 1), a second chute (3 f 2), a first slider (3 f 3), a post (3 f 4), an induction plate (3 f 5), a travel sensor (3 f 6) and a second mounting frame (3 f 7); the third supporting frame (3 f 1) is arranged outside the adjusting ring (3 d) in a vertical state; the third supporting frame (3 f 1) is arranged right below the tail end of the detecting rod (3 e); a second chute (3 f 2) is also formed in the third support frame (3 f 1); the first sliding block (3 f 3) is arranged in the second sliding groove (3 f 2) in a sliding way; the post rod (3 f 4) is vertically arranged at one side of the first sliding block (3 f 3); the rod part of the post rod (3 f 4) passes through the first chute (3 e 2) and is connected with the first chute (3 e 2) in a sliding fit manner; the induction plate (3 f 5) is fixedly arranged at the end part of the post rod (3 f 4) in a horizontal state; the stroke sensor (3 f 6) is fixedly arranged on the third support frame (3 f 1) in a vertical state through the second mounting frame (3 f 7); the stroke sensor (3 f 6) is arranged right below the induction plate (3 f 5); the induction source of the stroke sensor (3 f 6) is in interference connection with the induction plate (3 f 5).
8. The quality inspection device for wind power dedicated cable production according to claim 7, wherein the middle guiding unit (3 g) comprises a connecting ring (3 g 1), a rectangular through hole (3 g 2), a third chute (3 g 3), a second slider (3 g 4), a first opening (3 g 5), a first rotating rod (3 g 6) and a locking bolt (3 g 7); the connecting ring (3 g 1) is coaxially and fixedly arranged in the middle of the adjusting ring (3 d), and the rectangular through hole (3 g 2) is penetrated and arranged in the middle of the connecting ring (3 g 1); a third chute (3 g 3) is also formed on two sides of the rectangular through hole (3 g 2); the second sliding block (3 g 4) is vertically and slidably arranged in the rectangular through hole (3 g 2); the first opening (3 g 5) is penetrated and arranged on the end hinge part (3 d 4); the first opening (3 g 5) is arranged in a V shape; a first rotating rod (3 g 6) is rotatably embedded in the first opening (3 g 5); one side of the second sliding block (3 g 4) is also provided with a threaded hole; the locking bolt (3 g 7) is screwed in the threaded hole; the middle guide device (4) comprises a telescopic frame (4 a), a guide block (4 b), a second opening (4 c) and a second rotating rod (4 d); the telescopic frame (4 a) is arranged on the frame (1) in a vertical state; the guide block (4 b) is horizontally arranged at the top of the telescopic frame (4 a); the second opening (4 c) is penetrated and arranged on the guide block (4 b); a second rotating rod (4 d) is embedded into the second opening (4 c) in a driving way; the second rotating rod (4 d) is provided in a plurality along the rectangular array in the longitudinal direction of the guide block (4 b).
9. The method for using the quality testing device for wind power special cable production according to any one of claims 1-8:
s1, firstly, a cable is guided by a person to sequentially pass through a first guiding and conveying device (2), a first cable detection device (3), a middle guiding device (4), a second cable detection device (5) and a second guiding and conveying device (6);
s2, accessing an external power supply to drive the first guiding and transmitting device (2) and the second guiding and transmitting device (6) to guide and transmit the cable;
s3, resetting the detection value of the detection element (3 f) in the transmission state, so that the detection element (3 f) is matched with the detection rod (3 e) to be adjusted to a detection state corresponding to the diameter of the detected cable;
s4, after the detection element (3 f) detects vertical zeroing, when the outer wall of the cable bulges, the bulge part bulges to drive the detection end of the detection rod (3 e) to lift, and the tail end of the detection rod (3 e) descends and is pressed to the detection end of the detection element (3 f) while the detection end of the detection rod (3 e) is lifted; the detection element (3 f) detects the change of the numerical value, and when the detection is vertical to exceed the preset range, the detection element (3 f) sends out an electric signal to the alarm device, and the alarm device is driven to send out an alarm to remind workers.
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| CN202210387197.3A CN114577998B (en) | 2022-04-14 | 2022-04-14 | Quality inspection device and method for wind power special cable production |
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Effective date of registration: 20240129 Address after: 253000, No. 101, Zone A, North Side of Middle Section of No. 2 Road, Industrial Park Planning, Lunzhen Town, Yucheng City, Dezhou City, Shandong Province Patentee after: Shandong Luke Cable Co.,Ltd. Country or region after: China Address before: 223800 Tanggou Town Industrial Park, Shuyang County, Suqian City, Jiangsu Province Patentee before: Jiangsu Hongfei Cable Technology Co.,Ltd. Country or region before: China |