CN112670031A - Outer conductor longitudinal wrapping forming platform for leaky coaxial cable - Google Patents
Outer conductor longitudinal wrapping forming platform for leaky coaxial cable Download PDFInfo
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- CN112670031A CN112670031A CN202011488846.6A CN202011488846A CN112670031A CN 112670031 A CN112670031 A CN 112670031A CN 202011488846 A CN202011488846 A CN 202011488846A CN 112670031 A CN112670031 A CN 112670031A
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Abstract
The invention discloses a longitudinal wrapping forming platform for an outer conductor of a leaky coaxial cable, which relates to the field of production of the leaky coaxial cable and comprises a fixed table, wherein an outer conductor winding frame, a pre-expanding frame, a pre-forming frame, a shaping mold, a forming mold and a contraction device are sequentially arranged on the fixed table side by side, the outer conductor is wound on the outer conductor winding frame, an inner core winding wheel is rotatably arranged on the pre-expanding frame, an inner core is wound on the inner core winding wheel, the width of the outer conductor is greater than the perimeter of the cross section of the inner core, a pre-forming wheel A and a pre-forming wheel B are rotatably arranged on the pre-forming frame, the pre-forming wheel B is arranged above the pre-forming wheel A, a pre-forming groove is arranged on the side surface of the pre-forming wheel A, a shaping groove is arranged on the top surface of the shaping mold, and a forming hole is arranged on the: the welded structure of the outer conductor cannot effectively protect the inner core.
Description
Technical Field
The invention relates to the field of production of leaky coaxial cables, in particular to a leaky coaxial cable outer conductor longitudinal wrapping forming platform.
Background
The leaky coaxial cable has signal transmission function and antenna function, and can uniformly radiate controlled electromagnetic wave energy along a line and receive the electromagnetic wave energy by controlling the opening of the conductor, thereby realizing the coverage of an electromagnetic field blind area and achieving the purpose of smooth mobile communication. The insulation adopts a uniform, fine and closed micro-bubble structure with high physical foaming, so that the transmission parameters such as characteristic impedance, standing wave coefficient, attenuation and the like are more uniform and stable compared with the traditional air insulation structure, the reduction or loss of the transmission performance caused by the invasion of moisture to the cable in a humid environment can be resisted, the trouble of inflation maintenance is avoided, the service life and the stability and reliability of the product are greatly improved, and the coaxial cable structure is the most advanced radio frequency and leakage coaxial cable structure in the world.
As shown in fig. 16, the outer conductor 2 in the prior art wraps the inner core 1, the outer side surface thereof is covered with a sheath, and the end contact portion of the outer conductor 2 is a weld 24, the prior art adopts a mode of longitudinally wrapping and bending the outer conductor 2 and covering the outer conductor on the inner core 1, and then welding is performed at the abutting positions of the two ends of the outer conductor 2, however, when the outer conductor 2 produced by adopting the production mode is bent, the weld 24 is easily broken and failed, and further, gaps are generated at the abutting positions of the two ends of the outer conductor 2, the inner core 1 cannot be effectively protected, and when welding, the outer conductor 2 is easily burned through, so that the outer conductor and the inner core 1 are welded together by mistake, which greatly affects the quality of the finished product: the welding structure of the outer conductor can not effectively protect the inner core.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the object of the present invention is to: the utility model provides a leaky coaxial cable outer conductor is indulged and is wrapped shaping platform has solved the technical problem that exists among the prior art, if: the welded structure of the outer conductor cannot effectively protect the inner core.
In order to achieve the purpose, the invention provides the following technical scheme:
a longitudinal wrapping forming platform for an outer conductor of a leaky coaxial cable comprises a fixing table, wherein an outer conductor winding frame, a pre-expanding frame, a pre-forming frame, a shaping die, a forming die and a contraction device are sequentially arranged on the fixing table side by side, the outer conductor winding frame is wound with an outer conductor, the pre-expanding frame is rotatably provided with an inner core winding wheel, the inner core winding wheel is wound with an inner core, the width of the outer conductor is larger than the perimeter of the cross section of the inner core, the pre-forming frame is rotatably provided with a pre-forming wheel A and a pre-forming wheel B, the pre-forming wheel B is arranged above the pre-forming wheel A, the side surface of the pre-forming wheel A is provided with a pre-forming groove, the top surface of the shaping die is provided with a shaping groove, and the;
the end, led out from the outer conductor winding frame, of the outer conductor sequentially penetrates through the pre-forming groove, the fixing groove and the forming hole, the end, led out from the inner core winding wheel, of the inner core sequentially penetrates through the fixing groove and the forming hole, the outer conductor is arranged below the inner core, one ends, led out from the forming hole, of the outer conductor and one end, led out from the inner core winding wheel, of the inner core are connected with the contraction device, and the contraction device is used for pulling the outer conductor and the inner core to move towards the direction far away from the forming hole;
the inner wall of the bottom of the preforming groove is of an arc-shaped structure matched with the inner core, a preforming protrusion matched with the preforming groove is arranged on the side face of the preforming wheel B, the outer conductor is arranged below the preforming protrusion, the preforming protrusion is used for extruding the outer conductor to be of a U-shaped structure, the U-shaped structure of the outer conductor comprises a vertical portion A, a vertical portion B and an arc portion, and the vertical portion A and the vertical portion B are arranged on two sides of the arc portion;
the shaping groove is matched with the U-shaped structure, one end, close to the pre-shaping frame, of the top of the shaping mold is rotatably provided with an extrusion wheel, the lower end of the extrusion wheel is abutted against the inner core, and the part, in the shaping groove, of the inner core is arranged in the U-shaped structure opening of the outer conductor and is abutted against the outer conductor;
a bending protrusion A, a shaping block A, a bending protrusion B and a shaping block B are sequentially arranged in the direction, away from the outer conductor winding frame, in the shaping groove, the bending protrusion A and the shaping block A are arranged on one side of the inner wall of the shaping groove, the bending protrusion B and the shaping block B are arranged on the other side of the inner wall of the shaping groove, the bending protrusion A is of a wedge-shaped structure and used for bending the vertical part A, the bending protrusion B and the bending protrusion A are symmetrically arranged and have the same structure, the bending protrusion B is used for bending the vertical part B, an arc-shaped groove A is arranged at the bottom of the shaping block A and used for extruding the vertical part A to cover the upper end of the inner core, an arc-shaped groove B is arranged at the bottom of the shaping block B and used for extruding the vertical part B to cover the vertical part A;
the shaping hole with what stock mould was drawn forth outer conductor adaptation, the moulded die side be equipped with the opening of shaping hole adaptation, the tip of vertical portion B set up in the opening, the opening terminal surface is equipped with a plurality of gyro wheels, and a plurality of the gyro wheel is followed the inner core axle center sets up side by side, the gyro wheel with vertical portion B butt, one side that the opening orientation was equipped with welder, welder is used for the welding the tip of vertical portion B.
Further, the shaping hole includes guide portion and undergauge portion, the guide portion is tubaeform structure, undergauge portion set up in tubaeform structure's path end.
Furthermore, the inner wall of the forming hole is provided with an extrusion bulge, and the extrusion bulge is used for extruding the gap formed by the end part of the vertical part A covered by the vertical part B.
Furthermore, a plurality of screws are arranged on the end faces of two sides of the top of the shaping groove side by side, two through holes matched with the screws are formed in the shaping block A and the shaping block B, one screw is arranged in each through hole of the shaping block A and the shaping block B, nuts are connected to the screws inserted into the through holes in a threaded manner, and the nuts are used for limiting the shaping block A and the shaping block B.
Further, still be equipped with on the frame of expanding in advance and expand the wheel in advance, expand the wheel set up in advance in inner core wire winding wheel below, expand the wheel side in advance and be equipped with the groove of expanding in advance that is the arc structure, the outer conductor wire winding frame with between the frame in advance the outer conductor set up in on the groove of expanding in advance, the outer conductor with expand the groove butt in advance, it is used for the extrusion to expand in advance the groove the outer conductor is the arc structure.
Furthermore, the side surface of the extruding wheel is of an arc structure matched with the inner core.
Further, the welding gun is a MIG welding gun.
Compared with the prior art, the invention has the following beneficial effects:
1. make outer conductor both ends tip overlap through the stock mould and accomplish the inner core and indulge the package, then the outer conductor continues to extrude the inner core in the shaping hole of moulded die, make the outer conductor hug closely the inner core, accomplish the welding again at last under the extrusion of gyro wheel, accomplish the indulging of outer conductor and wrap the weld forming process, indulge the outer conductor tip overlap and cover the inner core after the package is accomplished, can play more effective protection to the inner core, under the condition that the cable is buckled, even the welding seam splits, the part that overlaps and covers also can wrap up the inner core, the bilayer structure of outer conductor tip also can prevent to burn the phenomenon and avoid welding with the inner core mistake together during the welding, reached and improved the beneficial effect of indulging the technology in order to improve outer.
2. Through protruding A of bending on the stock mould, design piece A, protruding B of bending and design piece B bend the parcel inner core with outer conductor one end in proper order, bend the parcel inner core with the other end again, make outer conductor both ends tip overlap and accomplish the inner core and indulge the package, on automated production, only need drive outer conductor and inner core the motion can, reached the outer conductor of being convenient for automation indulge the beneficial effect of wrapping the inner core.
3. The inner wall through the shaping hole is equipped with the extrusion arch, extrudees bellied one side be equipped with the recess of vertical portion B's tip adaptation, vertical portion B is through in the shaping hole, vertical portion B is extruded by the extrusion arch, the clearance and then compressed, vertical portion B tip and then indentation in above-mentioned recess, has reached the more inseparable beneficial effect of messenger's outer conductor laminating inner core.
Drawings
Fig. 1 is an overall structure diagram of a leaky coaxial cable outer conductor longitudinal wrapping forming platform according to the invention;
FIG. 2 is a schematic cross-sectional view of a pre-expander wheel and outer conductor;
FIG. 3 is a schematic cross-sectional view of a preform wheel A, preform wheel B and outer conductor;
FIG. 4 is a schematic cross-sectional view of the extrusion wheel, inner core and outer conductor;
FIG. 5 is a schematic view of a sizing die;
FIG. 6 is a schematic cross-sectional view of a bending protrusion A;
FIG. 7 is a schematic cross-sectional view of a sizing block A;
FIG. 8 is a schematic cross-sectional view of a bending protrusion B;
FIG. 9 is a schematic cross-sectional view of a sizing block B;
FIG. 10 is a schematic cross-sectional view of the gap as the end of the outer conductor is covered;
FIG. 11 is a schematic view of a forming die;
FIG. 12 is a longitudinal sectional view of a shaping mold;
FIG. 13 is a schematic cross-sectional view of a forming die;
FIG. 14 is a side view of the torch welding with the rollers pressing the outer conductor;
FIG. 15 is a schematic view of the final setting of the cable;
FIG. 16 is a schematic view of a prior art leaky coaxial cable;
list of reference numerals
1-inner core, 2-outer conductor, 21-vertical part a, 22-vertical part B, 23-gap, 24-weld, 3-fixing table, 4-outer conductor winding reel, 5-inner core winding reel, 6-pre-expanding rack, 61-pre-expanding reel, 7-pre-forming rack, 71-pre-forming reel a, 72-pre-forming reel B, 8-extrusion reel, 9-shaping die, 91-bending bulge a, 92-shaping block a, 93-bending bulge B, 94-shaping block B, 10-forming die, 101-guiding part, 102-reducing part, 103-rolling wheel, 104-extrusion bulge, 11-welding gun, 12-shrinking device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to fig. 1 to 16, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.
The outer conductor winding frame 4, the pre-expanding frame 6, the pre-forming frame 7, the sizing die 9, the forming die 10 and the shrinking device 12 are sequentially arranged on the fixing table 3 side by side, an outer conductor 2 is wound on the outer conductor winding frame 4, an inner core winding wheel 5 is rotatably arranged on the pre-expanding frame 6, an inner core 1 is wound on the inner core winding wheel 5, the width of the outer conductor 2 is larger than the circumference of the cross section of the inner core 1, a pre-forming wheel A71 and a pre-forming wheel B72 are rotatably arranged on the pre-forming frame 7, a pre-forming wheel B72 is arranged above the pre-forming wheel A71, a pre-forming groove is arranged on the side surface of the pre-forming wheel A71, a sizing groove is arranged on the top surface of the sizing die 9, and a forming hole is formed in the forming die 10.
As shown in fig. 1, the transmission direction of the inner core 1 and the outer conductor 2 is from left to right on the fixing table 3, the shrinking device 12 pulls the assembly of the outer conductor 2 and the inner core 1 to move, the shrinking device 12 is a hoisting device in the prior art, the fixing table 3 is sequentially and fixedly provided with an outer conductor winding frame 4, a pre-expanding frame 6, a pre-forming frame 7, a shaping mold 9, a forming mold 10 and the shrinking device 12 in this direction, the outer conductor 2 is wound on the outer conductor winding frame 4 for a plurality of circles, the outer conductor winding frame 4 is in a sheet structure, the width of the sheet structure is greater than the cross section circumference of the inner core 1, the outer conductor 2 can wrap the inner core 1 to form the structure shown in fig. 15, and the inner core 1 is a shaft assembly composed of an insulator and an inner conductor.
Preforming tank bottom inner wall be with the arc structure of 1 adaptation of inner core, preforming wheel B72 side be equipped with the preforming of preforming groove adaptation is protruding, outer conductor 2 set up in preforming protruding below, preforming protruding being used for the extrusion outer conductor 2 is "U" font structure, outer conductor 2 "U" font structure includes vertical portion A21, vertical portion B22 and circular arc portion, vertical portion A21 with vertical portion B22 set up in circular arc portion both sides.
The outer conductor 2 drawn from the outer conductor reel 4 is first transferred to the preforming groove of the preforming wheel a71, as shown in fig. 3, where the outer conductor 2 is located between the preforming groove and the preforming wheel B72, the annular protrusion on the side (i.e. wheel face) of the preforming wheel B72 presses the outer conductor 2 to force it to change from the sheet structure into the "U" -shaped structure, and then the preforming wheel B72 and the preforming wheel a71 continue to move to the forming die 9, so that the sheet structure of the outer conductor 2 is changed into the "U" -shaped structure in advance.
The shaping groove with "U" font structure adaptation, 9 tops of stock mould are close to the one end of preforming frame 7 is equipped with extrusion wheel 8 with rotating, 8 lower extreme butts of extrusion wheel inner core 1, inner core 1 is in the part in the shaping groove set up in outer conductor 2 "U" font structure opening and with 2 butts of outer conductor.
As shown in fig. 4, the inner core 1 is extruded by the side surface of the lower end of the extrusion wheel 8, so that the inner core is abutted against the inner wall of the bottom of the U-shaped structure of the outer conductor 2, the outer conductor 2 on the sizing die 9 and the outer conductor 2 on the forming die 10 are concentric and are positioned on the horizontal plane, the extrusion wheel 8 plays a role of tensioning the outer conductor 2 and matching the outer conductor with the inner core 1, the extrusion wheel 8 is positioned between the inner walls of the two sides of the U-shaped structure, the outer conductor 2 led out from the pre-forming groove enters the sizing groove, and the sizing groove matched with the U-shaped structure of the outer conductor 2 further restrains the shape of the outer conductor 2.
A bending protrusion A91, a shaping block A92, a bending protrusion B93 and a shaping block B94 are sequentially arranged in the shaping groove in the direction away from the outer conductor winding frame 4, the bending protrusion A91 and the shaping block A92 are arranged on one side of the inner wall of the shaping groove, the bending protrusion B93 and the shaping block B94 are arranged on the other side of the inner wall of the shaping groove, the bending protrusion A91 is of a wedge-shaped structure and used for bending the vertical portion A21, the bending protrusion B93 and the bending protrusion A91 are symmetrically arranged and have the same structure, the bending protrusion B93 is used for bending the vertical portion B22, an arc-shaped groove A is arranged at the bottom of the shaping block A92 and used for extruding the vertical portion A21 to cover the upper end of the inner core 1, an arc-shaped groove B is arranged at the bottom of the shaping block B94 and used for extruding the vertical portion B22 to cover the vertical portion A21;
as shown in fig. 5, in the shaping mold 9, in the conveying direction of the outer conductor 2 and the inner core 1, there are sequentially provided a bending protrusion a91, a shaping block a92, a bending protrusion B93 and a shaping block B94 in the shaping groove, the bending protrusion a91 and the bending protrusion B93 are all in a wedge structure, the inclined plane of which faces the middle of the shaping groove, when the outer conductor 2 and the inner core 1 pass through the shaping groove, the vertical portion a21 of the outer conductor 2 is first guided by the bending protrusion a91 to be bent, as shown in fig. 7, the vertical portion a21 is bent by the inclined plane of the bending protrusion a91, and the angle between the vertical portion a21 and the horizontal plane is between 45 degrees and 60 degrees, the outer conductor 2 is drawn from the bending protrusion a91 and conveyed for a certain interval and then pressed and bent by the shaping block a92, as shown in fig. 7, the arc groove a at the bottom of the shaping block a92 continuously bends the outer conductor 2 and completely bends it and covers the inner core 1, the vertical portion a21 is completely bent by this time; immediately after the outer conductor 2 and the inner core 1 are conveyed for a certain interval, the outer conductor 2 and the inner core 1 enter the range of the bending protrusion B93, similarly, the bending protrusion B93 bends the vertical part B22 to 45-60 degrees, then the shaping block B94 bends the vertical part B22 continuously, completely bends the vertical part B22 and covers the end part of the vertical part A21, the structure of the arc-shaped groove B at the bottom of the shaping block B94 is matched with the structure of the vertical part B22 after the end part of the vertical part A21 is covered, and then the outer conductor 2 wraps the inner core 1 completely, and the end part of one end of the outer conductor is covered by the end part of the other end, namely the end part B22 covers the end part of the vertical part A21. Through protruding A91 of bending on the design die 9, design piece A92, protruding B93 of bending and design piece B94 wrap up inner core 1 with outer conductor 2 one end bending in proper order, wrap up inner core 1 with the other end bending again, make outer conductor 2 both ends tip overlap and accomplish inner core 1 and indulge the package, on automated production, only need drive outer conductor 2 and inner core 1 the motion can, reached the beneficial effect that the automatic inner core 1 of indulging of outer conductor 2 of being convenient for was convenient for.
Intervals are arranged between the end part of the shaping die 9 close to the pre-shaping frame 7 and the bending protrusion A91, between the bending protrusion A91 and the shaping block A92, between the shaping block A92 and the bending protrusion B93 and between the bending protrusion B93 and the shaping block B94, the outer conductor 2 in the intervals is in a gradually bending form, and the two ends of the arc-shaped groove A, B in the conveying direction of the outer conductor 2 are provided with chamfers to relieve the bending amplitude of the outer conductor.
The forming hole is matched with the outer conductor 2 led out by the forming die 9, an opening part matched with the forming hole is formed in the side face of the forming die 10, the end part of the vertical part B22 is arranged in the opening part, a plurality of rollers 103 are arranged on the end face of the opening part, the rollers 103 are arranged side by side along the axis of the inner core 1, the rollers 103 are abutted against the vertical part B22, a welding gun 11 is arranged on one side of the opening part, and the welding gun 11 is used for welding the end part of the vertical part B22.
As shown in fig. 11, the opening portion is a structure of "Contraband" notch at the end of the forming die 10, and is arranged at one end of the forming die 10 away from the sizing die 9, the diameter of the forming hole is slightly smaller than the diameter of the outer conductor 2 after wrapping the inner core 1, so that the outer conductor 2 is further contracted and extruded on the inner core 1 in the forming hole, and the structure compactness is improved, as shown in fig. 14, before the outer conductor 2 and the inner core 1 are led out of the forming hole, the end of the vertical portion B22 of the outer conductor 2 is located in the opening portion, and is extruded by the roller 103, and a certain interval is provided between the roller 103 and the end of the vertical portion B22, and is extruded by the roller 103, when the welding gun 11 welds the end of the vertical portion B22, the outer conductor 2 is compact in structure when being not easily deformed and welded, the inner core 1 is longitudinally wrapped by overlapping the sizing die 9 at the ends of the outer conductor, make outer conductor 2 hug closely inner core 1, accomplish the welding again under the extrusion of gyro wheel 103 at last, accomplish outer conductor 2 indulge a packet welding forming process, indulge outer conductor 2 tip overlap coverage inner core 1 after the package is accomplished, can play more effective protection to inner core 1, under the condition that the cable is buckled, even the welding seam 24 fracture, the part that overlaps the coverage also can wrap up inner core 1, the bilayer structure of 2 tip of outer conductor also can prevent to burn the phenomenon and avoid welding together with inner core 1 mistake during the welding, reached and improved and indulged the beneficial effect of packet technology in order to improve outer conductor 2 protection degree.
As shown in fig. 15, in order to form the final leaky coaxial cable, the outer jacket 24 covers the outer conductor 2, and the outer jacket 24 is extruded, that is, melted rubber is used to cover the outer conductor 2 when the outer conductor is conveyed, so that the height difference part at the end of the vertical part B22 can be filled, and the cable structure is more uniform.
Further, the shaping hole includes guide portion 101 and reducing portion 102, guide portion 101 is tubaeform structure, reducing portion 102 set up in tubaeform structure's minor diameter end.
As shown in fig. 10, one end of the trumpet-shaped structure is an entrance end of the forming hole, i.e., an end of the forming hole close to the sizing die 9, which guides the outer conductor 2 into the reduced diameter portion 102, and the diameter of the reduced diameter portion 102 is slightly smaller than that of the outer conductor 2 at this time.
Further, the inner wall of the molding hole is provided with a pressing protrusion 104, and the pressing protrusion 104 is used for pressing the vertical portion B22 to cover the gap 23 formed at the end of the vertical portion a 21.
As shown in fig. 10, after the end of the vertical portion a21 is covered by the vertical portion B22, a gap 23 exists between the vertical portion B22 and the inner core 1, as shown in fig. 13, the inner wall of the forming hole is provided with an extrusion protrusion 104, one side of the extrusion protrusion 104 is provided with a groove adapted to the end of the vertical portion B22, when the vertical portion B22 passes through the forming hole, the vertical portion B22 is extruded by the extrusion protrusion 104, the gap 23 is further compressed, the end of the vertical portion B22 is further retracted in the groove, and the beneficial effect that the outer conductor 2 is attached to the inner core 1 more tightly is achieved.
Further, a plurality of screws 95 are arranged on the end faces of two sides of the top of the shaping groove side by side, two through holes matched with the screws 95 are formed in the shaping block A92 and the shaping block B94, one screw 95 is arranged in each through hole of the shaping block A92 and the shaping block B94, the screws 95 are inserted into the through holes, nuts are connected to the screw 95 in a threaded mode, and the nuts are used for limiting the shaping block A92 and the shaping block B94.
As shown in fig. 6 and 7, the shaping block a92 is inserted into the two screws 95, the cross section of the shaping block a92 is of an "L" shaped structure, the "L" shaped structure is clamped on one side end face of the top of the shaping groove, the bottom face of the horizontal upper end of the L is abutted against the top end face of the shaping groove, the side face of the vertical lower end of the L is abutted against the inner wall of the shaping groove, the through hole is arranged at the upper end of the L, the arc-shaped groove a is arranged at the bottom of the lower end of the L, the screw 95 penetrates through the upper end of the L and is.
When the outer conductor fixing device is used initially, the outer conductor 2 penetrates through the arc-shaped groove A of the shaping block A92 for the first time, the nut is unscrewed, the shaping block A92 is taken down upwards, the outer conductor 2 penetrates through the coverage range of the arc-shaped groove A, the shaping block A92 is pressed down, the outer conductor 2 is bent and covers the inner core 1, and then in the process that the outer conductor 2 is continuously transmitted, the subsequent outer conductor 2 portion is automatically bent and shaped by the shaping block A92, the effect of facilitating installation and use is achieved, and the using mode and the principle of the shaping block B94 are the same as those of the shaping block A92.
In addition, in the interval between the shaping block a92 and the bending protrusion a91, the outer conductor 2 is in a gradually bending state, different screws 95 are inserted through the shaping block a92 to change the distance of the interval, so that the bending amplitude of the outer conductor 2 is changed, when the outer conductor 2 is made of different plastic metals, such as copper and aluminum, the rigidity and the strength of the outer conductor are affected by the gradual bending amplitude, the interval distance can be controlled to enable the gradual bending amplitude of the outer conductor 2 to be softer, the end part of the outer conductor 2 is prevented from bending and breaking, and the beneficial effect that the gradual bending amplitude of the outer conductor 2 is conveniently adjusted to avoid the end part of the outer conductor from bending and breaking is achieved.
Further, still be equipped with on the frame 6 that expands in advance and expand wheel 61 in advance, expand wheel 61 set up in advance in inner core wire reel 5 below, it is equipped with the groove that expands in advance that is the arc structure to expand wheel 61 side in advance, outer conductor wire reel 4 with between the preformed frame 7 outer conductor 2 set up in expand in advance on the groove, outer conductor 2 with expand the groove butt in advance, expand in advance the groove and be used for the extrusion outer conductor 2 is the arc structure.
As shown in fig. 2, the pre-expanding slots on the pre-expanding wheel 61 tension and bend the outer conductor 2 into an arc-shaped configuration so that the subsequent pre-forming wheel a71 bends it into the aforementioned "U" configuration.
Furthermore, the side surface of the extrusion wheel 8 is of an arc-shaped structure matched with the inner core 1.
Further, the welding gun 11 is a MIG welding gun, and the MIG welding gun in the prior art can weld a whole high-quality welding line and is suitable for welding the outer conductor 2.
In addition, the method also comprises a longitudinal wrapping method of the outer conductor of the leaky coaxial cable, which comprises the forming platform and comprises the following steps:
s1, the outer conductor 2 is led out from the outer conductor winding frame 4 on the fixing table 3 to the pre-expanding frame 6, so that the outer conductor 2 is pre-formed into an arc structure.
S2, the outer conductor 2 passes through the pre-forming frame 7, so that the outer conductor 2 is pre-formed into a U-shaped structure.
S3, leading the inner core 1 out of the inner core coiling wheel 5 on the fixing table 3 to the sizing die 9, leading the outer conductor 2 and the inner core 1 to pass through the sizing die 9, and bending the U-shaped structure side of the outer conductor 2 and covering the inner core 1 by the bending bulge A91 and the sizing block A92 on the sizing die 9.
S4, the bending projection B93 on the sizing die 9 and the sizing block B94 are bent at the other side thereof and cover the end portion thereof which has been bent.
S5, the outer conductor 2 and the inner core 1 pass through the forming die 10, and the forming die 10 shrinks the outer conductor 2.
S6, the bent end of the outer conductor 2 is exposed through the opening of the mold 10, the welding torch 11 welds the bent end of the outer conductor 2 in the opening, and the roller 103 at the opening end surface presses the side surface of the outer conductor 2.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments in the above-described embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition. In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. The leaky coaxial cable outer conductor longitudinal wrapping forming platform is characterized by comprising a fixing table (3), wherein an outer conductor winding frame (4), a pre-expanding frame (6), a pre-forming frame (7), a shaping mold (9), a forming mold (10) and a shrinking device (12) are sequentially arranged on the fixing table (3) side by side, an outer conductor (2) is wound on the outer conductor winding frame (4), an inner core winding wheel (5) is rotatably arranged on the pre-expanding frame (6), an inner core (1) is wound on the inner core winding wheel (5), the width of the outer conductor (2) is larger than the perimeter of the cross section of the inner core (1), a pre-forming wheel A (71) and a pre-forming wheel B (72) are rotatably arranged on the pre-forming frame (7), the pre-forming wheel B (72) is arranged above the pre-forming wheel A (71), and a pre-forming groove is formed in the side face of the pre-forming wheel A (71), the top surface of the shaping mold (9) is provided with a shaping groove, and the shaping mold (10) is provided with a shaping hole;
one end of the outer conductor (2), which is led out from the outer conductor winding frame (4), sequentially penetrates through the pre-forming groove, the fixing groove and the forming hole, one end of the inner core (1), which is led out from the inner core winding wheel (5), sequentially penetrates through the fixing groove and the forming hole, the outer conductor (2) is arranged below the inner core (1), one ends, which penetrate through the forming hole, of the outer conductor (2) and the inner core (1) are both connected with the contraction device (12), and the contraction device (12) is used for pulling the outer conductor (2) and the inner core (1) to move towards the direction far away from the forming hole;
the inner wall of the bottom of the preforming groove is of an arc-shaped structure matched with the inner core (1), a preforming protrusion matched with the preforming groove is arranged on the side face of the preforming wheel B (72), the outer conductor (2) is arranged below the preforming protrusion, the preforming protrusion is used for extruding the outer conductor (2) to be of a U-shaped structure, the U-shaped structure of the outer conductor (2) comprises a vertical portion A (21), a vertical portion B (22) and an arc portion, and the vertical portion A (21) and the vertical portion B (22) are arranged on two sides of the arc portion;
the shaping groove is matched with the U-shaped structure, one end, close to the pre-shaping frame (7), of the top of the shaping mold (9) is rotatably provided with an extrusion wheel (8), the lower end of the extrusion wheel (8) is abutted to the inner core (1), and the part, in the shaping groove, of the inner core (1) is arranged in an opening of the U-shaped structure of the outer conductor (2) and is abutted to the outer conductor (2);
a bending bulge A (91), a shaping block A (92), a bending bulge B (93) and a shaping block B (94) are sequentially arranged in the shaping groove in the direction away from the outer conductor winding frame (4), the bending bulge A (91) and the shaping block A (92) are arranged on one side of the inner wall of the shaping groove, the bending bulge B (93) and the shaping block B (94) are arranged on the other side of the inner wall of the shaping groove, the bending bulge A (91) is of a wedge-shaped structure and used for bending the vertical part A (21), the bending bulge B (93) and the bending bulge A (91) are symmetrically arranged and have the same structure, the bending bulge B (93) is used for bending the vertical part B (22), an arc-shaped groove A is arranged at the bottom of the shaping block A (92), and the arc-shaped groove A is used for extruding the vertical part A (21) to cover the upper end of the inner core (1), an arc-shaped groove B is formed in the bottom of the shaping block B (94), and is used for extruding the vertical part B (22) to cover the vertical part A (21);
the forming hole with the external conductor (2) adaptation that stock mould (9) were drawn forth, moulded die (10) side be equipped with the opening of forming hole adaptation, the tip of vertical portion B (22) set up in the opening, the opening terminal surface is equipped with a plurality of gyro wheels (103), and is a plurality of gyro wheel (103) are followed inner core (1) axle center sets up side by side, gyro wheel (103) with vertical portion B (22) butt, one side of opening orientation is equipped with welder (11), welder (11) are used for the welding the tip of vertical portion B (22).
2. The leaky coaxial cable outer conductor longitudinal covering forming platform as claimed in claim 1, wherein the forming hole comprises a guiding portion (101) and a reduced diameter portion (102), the guiding portion (101) is in a horn-shaped structure, and the reduced diameter portion (102) is disposed at a small diameter end of the horn-shaped structure.
3. The leaky coaxial cable outer conductor longitudinally-wrapping molding platform as claimed in claim 1, wherein the inner wall of the molding hole is provided with a pressing protrusion (104), and the pressing protrusion (104) is used for pressing the vertical portion B (22) to cover the gap (23) formed at the end of the vertical portion a (21).
4. The leaky coaxial cable outer conductor longitudinally-wrapping forming platform as claimed in claim 1, wherein a plurality of screws (95) are disposed side by side on end faces of two sides of a top of the shaped groove, two through holes adapted to the screws (95) are disposed on each of the shaped block a (92) and the shaped block B (94), one screw (95) is disposed in each of the through holes of the shaped block a (92) and the shaped block B (94), and nuts are threadedly connected to the screws (95) inserted into the through holes and used for limiting the shaped block a (92) and the shaped block B (94).
5. The leaky coaxial cable outer conductor longitudinally-wrapping forming platform as claimed in claim 1, wherein a pre-expanding wheel (61) is further disposed on the pre-expanding frame (6), the pre-expanding wheel (61) is disposed below the inner core winding wheel (5), a pre-expanding groove in an arc-shaped structure is disposed on a side surface of the pre-expanding wheel (61), the outer conductor (2) between the outer conductor winding frame (4) and the pre-forming frame (7) is disposed on the pre-expanding groove, the outer conductor (2) abuts against the pre-expanding groove, and the pre-expanding groove is used for extruding the outer conductor (2) to form an arc-shaped structure.
6. The leaky coaxial cable outer conductor longitudinal covering forming platform as claimed in claim 1, wherein the side surface of the extrusion wheel (8) is in an arc-shaped structure matched with the inner core (1).
7. The leaky coaxial cable outer conductor longitudinally-wrapping forming platform as claimed in claim 1, wherein said welding torch (11) is a MIG welding torch.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011488846.6A CN112670031B (en) | 2020-12-16 | 2020-12-16 | Outer conductor longitudinal wrapping forming platform for leaky coaxial cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011488846.6A CN112670031B (en) | 2020-12-16 | 2020-12-16 | Outer conductor longitudinal wrapping forming platform for leaky coaxial cable |
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| CN112670031B CN112670031B (en) | 2022-02-22 |
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Cited By (1)
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| CN112670031B (en) | 2022-02-22 |
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