A coaxial cable stranded inner conductor pressing device and production process

Abstract

The present application relates to the field of coaxial cable twisted inner conductor production, and more particularly to a coaxial cable twisted inner conductor rounding device and production process. The coaxial cable twisted inner conductor rounding device comprises a frame, a feeding mechanism and a driving mechanism, both of which are arranged on the frame, and a rounding channel is arranged on the frame, and the feeding mechanism is used to feed the twisted inner conductor into the rounding channel; the diameter of the rounding channel is variable, and the driving mechanism is used to drive the diameter of the rounding channel to change. The present application has the effect that the coaxial cable twisted inner conductor can have both good flexibility and lower transmission signal attenuation.

Description

Technical Field

[0001] The present application relates to the field of production of coaxial cable twisted inner conductors, and in particular to a coaxial cable twisted inner conductor rounding device and production process. Background Art

[0002] At present, the inner conductors of mainstream coaxial cables on the market are generally divided into two types, namely single inner conductors and twisted inner conductors. A single inner conductor means that the inner conductor of the coaxial cable is composed of a copper cable. The surface of the single inner conductor is round and smooth, and the structure is stable. Therefore, the coaxial cable has lower attenuation and more stable electrical performance. However, a single inner conductor also has its inherent defects, such as poor flexibility, heavy weight, and easier breakage during repeated bending.

[0003] A twisted inner conductor refers to a copper conductor formed by twisting multiple copper cables together under certain rules. When the copper cable is bent, each conductor disperses the bending stress of the copper cable. Therefore, the design of the twisted copper cable makes the coaxial cable structure more flexible and more flexible to use. However, the current mainstream twisted inner conductors are usually naturally twisted. Compared with a single inner conductor of the same diameter, the surface area of ​​the twisted inner conductor is smaller. When transmitting high-frequency signals, the resistance generated is greater. Therefore, the attenuation of coaxial cables made of twisted inner conductors is relatively large.

[0004] In view of the above-mentioned related technologies, the inventor believes that it is necessary to manufacture a device to solve the problem of large signal attenuation in the transmission of twisted inner conductor coaxial cables. Summary of the invention

[0005] In order to achieve both flexibility and transmitted signal attenuation in the twisted inner conductor of a coaxial cable, the present application provides a coaxial cable inner conductor rounding device and a production process.

[0006] In a first aspect, the present application provides a coaxial cable stranded inner conductor rounding device, which adopts the following technical solution:

[0007] A coaxial cable twisted inner conductor rounding device comprises a frame, a feeding mechanism and a driving mechanism, wherein the feeding mechanism and the driving mechanism are both arranged on the frame, the frame is provided with a rounding channel, the feeding mechanism is used to feed the twisted inner conductor into the rounding channel; the diameter of the rounding channel is variable, and the driving mechanism is used to drive the diameter of the rounding channel to change.

[0008] By adopting the above technical solution, the twisted inner conductor can enter the inside of the round pressing channel under the action of the feeding mechanism, and then the driving mechanism drives the round pressing channel to reduce the diameter to round the twisted inner conductor. At this time, the twisted inner conductor will be tightened under the pressure of the round pressing channel and the outer surface will be rounded to form a finished twisted inner conductor. The finished twisted inner conductor has the internal structure of the twisted inner conductor, that is, it has multiple conductors with dispersed bending stress, so the finished twisted inner conductor has good flexibility. At the same time, because the surface of the finished twisted inner conductor is rounded, its conductive area is larger than that of the traditional twisted inner conductor, and the coaxial cable produced has lower attenuation.

[0009] Preferably, the driving mechanism includes a circle pressing member and a first cylinder, there are multiple circle pressing members, each of which is provided with a circle pressing groove, and the circle pressing grooves on the multiple circle pressing members form a circle pressing channel; the multiple circle pressing members can approach or move away, and the diameter of the circle pressing channel changes when approaching or moving away, and the first cylinder is used to drive the circle pressing member to move.

[0010] By adopting the above technical solution, when the multiple round pressing pieces are close to each other, the round pressing grooves are also close to each other, so that the diameter of the round pressing channel becomes smaller, and when the multiple round pressing pieces are far away from each other, the round pressing grooves are also far away from each other, so that the diameter of the round pressing channel becomes larger. When the multiple round pressing pieces are far away from each other, the stranded inner conductor can be conveniently placed inside the round pressing channel, and then the first cylinder can drive the multiple round pressing pieces to approach each other, so that the multiple round pressing pieces can round the stranded inner conductor inside the round pressing channel, so that the outer surface of the stranded inner conductor can be rounded.

[0011] Preferably, it also includes a linkage mechanism and a return member, and the plurality of the circular pressing members are divided into a plurality of groups, and the number of the circular pressing members in a group is two and they are arranged opposite to each other; the first cylinder is connected to a group of circular pressing members through the linkage mechanism to make the group of circular pressing members approach each other; the return member is used to provide a force to move the group of circular pressing members away from each other.

[0012] By adopting the above technical solution, only one first cylinder is needed to drive a group of round pressing parts to move, thus saving costs.

[0013] Preferably, the linkage mechanism includes a linkage rod, which is U-shaped. The linkage part is movably arranged on the frame, and the linkage rod includes an intermediate plate and two opposite support arms; the cylinder body of the first cylinder is fixedly connected to the frame, and the piston rod of the first cylinder is fixedly connected to the intermediate plate; an inclined surface is provided on the circular pressing part, and the two support arms are used to press the inclined surfaces of the two circular pressing parts respectively during movement to make the two circular pressing parts approach each other.

[0014] By adopting the above technical solution, when the piston rod of the first cylinder is extended or retracted, the connecting rod will move relative to the frame. At this time, the two arms of the connecting rod respectively press against the inclined surfaces of the two circular pressing parts to make the two circular pressing parts approach each other, so that only one cylinder is needed to achieve the simultaneous movement of the two circular pressing parts.

[0015] Preferably, a guide rod is provided on the frame, a guide block is provided on the round pressing member, and the guide rod passes through the guide block; the return member is a spring, the spring is sleeved on the guide rod, the spring is connected to the round pressing member, and the spring is used to provide a force to move the round pressing member away from another round pressing member in the same group.

[0016] By adopting the above technical solution, the cooperation between the guide rod and the guide block has a guiding function, so that the movement of the pressing round piece is more precise and not easy to deviate. In addition, the spring is a common device with restoring force, which is convenient to use and purchase.

[0017] Preferably, it also includes a discharging support, the feeding mechanism includes a clamping member, a feeding track and a driving member, the clamping member is movably arranged on the feeding track, the clamping member is used to clamp the twisted inner conductor when moving to the first position, and release the twisted inner conductor when moving to the second position; the driving member is used to drive the clamping member to move to the first position and the second position; the discharging support is arranged on the frame, and a supporting channel is provided on the discharging support.

[0018] By adopting the above technical solution, when the clamp moves to the first position, the twisted inner conductor is placed on the clamp so that the clamp clamps the twisted inner conductor, and then the clamp moves from the first position to the second position. At this time, the twisted inner conductor clamped by the clamp will also follow the movement of the clamp, and when the clamp moves to the second position, the end of the twisted inner conductor clamped by the clamp enters the rounding channel, and then the clamp at the second position releases the twisted inner conductor, and the clamp moves to the first position again to clamp the rear section of the twisted inner conductor, and the cycle is repeated in sequence, so that each section of the twisted inner conductor enters the rounding channel in sequence for rounding. At the same time, after the rounding is completed, the twisted inner conductor will pass through the support channel of the discharge support, effectively preventing the twisted inner conductor from deviating during the rounding and affecting the rounding effect.

[0019] Preferably, a guide groove is provided on the feeding track, a guide member is provided on the clamping member, the guide member is inserted into the guide groove, and the clamping member is used to move to a first position and a second position along the length direction of the guide groove.

[0020] By adopting the above technical solution, the cooperation between the guide groove and the guide member has a guiding function, so that the movement of the clamping member is more precise and less likely to deviate.

[0021] Preferably, the clamping member is a clamping cylinder having a first clamping jaw and a second clamping jaw, the first clamping jaw and the second clamping jaw can be relatively close to or far away from each other, clamp the twisted inner conductor when they are close to each other, and release the twisted inner conductor when they are far away from each other.

[0022] By adopting the above technical solution, the clamping claw cylinder can conveniently clamp or release the twisted inner conductor, which is more convenient to use.

[0023] Preferably, the driving member is a second cylinder, a cylinder body of the second cylinder is fixedly connected to the feeding track, and a piston rod of the second cylinder is fixedly connected to the clamping member.

[0024] By adopting the above technical solution, when the piston rod of the second cylinder is extended and retracted, the clamping member will move relative to the feeding track, so that the second cylinder can drive the clamping member to move along the feeding track to the first position and the second position.

[0025] In a second aspect, the present application provides a coaxial cable twisted inner conductor production process, which adopts the following technical solution:

[0026] A coaxial cable twisted inner conductor production process comprises the following steps:

[0027] (a) inserting the twisted inner conductor into the compression channel and passing it through the support channel, while the clamping member is in the first position and clamps the twisted inner conductor;

[0028] (b) The driving mechanism drives the diameter of the rounding channel to decrease so as to round-twist the inner conductor;

[0029] (c) The driving mechanism drives the diameter of the circular pressing channel to increase so as to loosen the twisted inner conductor;

[0030] (d) the driving member drives the clamping member to move from the first position to the second position so as to deliver the stranded inner conductor away from the round pressing channel into the round pressing channel;

[0031] (e) The driving mechanism drives the diameter of the round pressing channel to reduce so as to press the round twisted inner conductor to form a finished twisted inner conductor;

[0032] (f) the clamping member releases the twisted inner conductor and moves from the second position to the first position;

[0033] (g) The clamping member clamps the stranded inner conductor which is now away from the round pressing channel;

[0034] (h) The driving mechanism drives the diameter of the circular pressing channel to increase so as to loosen the twisted inner conductor;

[0035] (i) Repeat steps (d)-(h).

[0036] By adopting the above technical solution, the twisted inner conductor placed in the rounding channel will be rounded when the diameter of the rounding channel becomes smaller. At this time, the finished twisted inner conductor still has a normal twisted structure, which makes the finished product have good flexibility. At the same time, because the surface of the finished twisted inner conductor is rounded, its conductive area is larger than that of the traditional twisted inner conductor. Therefore, when transmitting high-frequency signals, the attenuation of the twisted inner conductor is smaller. Therefore, the coaxial cable produced by the coaxial cable twisted inner conductor production process has the advantages of low transmission attenuation and good flexibility.

[0037] In summary, the present application includes at least one of the following beneficial technical effects:

[0038] 1. The coaxial cable produced has the advantages of low transmission attenuation and good flexibility;

[0039] 2. Save costs;

[0040] 3. Effectively prevent the twisted inner conductor from deviating during rounding and affecting the rounding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the coordination relationship between a coaxial cable twisted inner conductor rounding device and other production equipment in an embodiment of the present application.

[0042] Figure 2 It is a structural schematic diagram from one perspective of a coaxial cable twisted inner conductor rounding device according to an embodiment of the present application.

[0043] Figure 3 It is a structural schematic diagram from another perspective of a coaxial cable twisted inner conductor rounding device in an embodiment of the present application.

[0044] Figure 4 It is a schematic structural diagram of a coaxial cable twisted inner conductor before being rounded in an embodiment of the present application.

[0045] Figure 5 It is a schematic diagram of the structure of a coaxial cable twisted inner conductor after being rounded in an embodiment of the present application.

[0046] Explanation of the reference numerals in the accompanying drawings: 1. frame; 2. round pressing channel; 3. discharge support member; 4. support channel; 5. guide groove; 6. guide member; 7. feeding mechanism; 71. jaw cylinder; 711. first jaw; 712. second jaw; 72. feeding track; 73. second cylinder; 8. driving mechanism; 81. round pressing member; 811. round pressing groove; 812. inclined surface; 82. first cylinder; 9. connecting rod; 91. middle plate; 92. support arm; 10. spring; 11. guide rod; 12. guide block; 100. feeding device; 200. round pressing equipment; 300. winding device; 400. first guide device; 500. second guide device. DETAILED DESCRIPTION

[0047] The following is combined with Figure 1-2 This application is described in further detail.

[0048] Reference Figure 1 The present application discloses a coaxial cable twisted inner conductor rounding device 200, which can be used in conjunction with a feeding device 100, a winding device 300, a first guide device 400 and a second guide device 500. The first guide device 400 is arranged between the feeding device 100 and the rounding device 200, and the second guide device 500 is arranged between the rounding device 200 and the winding device 300. The feeding device 100 is used to place the twisted inner conductor roll and transfer the twisted inner conductor to the first guide device 400. The winding device 300 is used to wind up the finished twisted inner conductor. During production, the loading device 100 stretches the twisted inner conductor of the twisted inner conductor roll and transfers it to the first guide device 400, and then the first guide device 400 transfers the twisted inner conductor to the rounding device 200, the rounding device 200 performs a rounding operation on the twisted inner conductor to form a finished twisted inner conductor product, and then the finished twisted inner conductor product is transferred to the second guide device 500, and then the second guide device 500 transfers the finished twisted inner conductor product to the winding device 300 for winding.

[0049] The specific structure of a coaxial cable twisted inner conductor pressing device is disclosed in the embodiment of the present application. Referring to FIG. 2 , the device includes a frame 1, a feeding mechanism 7 and a discharging support 3. The frame 1 is provided with a pressing channel 2. The feeding mechanism 7 and the discharging support 3 are both arranged on the frame 1. The feeding mechanism 7 and the discharging support 3 are respectively located at the two ends of the pressing channel 2. The feeding mechanism 7 is used to feed the twisted inner conductor into the pressing channel 2. The discharging support 3 is provided with a supporting channel 4. When working, the feeding mechanism 7 first feeds the twisted inner conductor into the pressing channel 2 from one end of the pressing channel 2, and after the twisted inner conductor in the pressing channel 2 is processed, it passes through the supporting channel 4 of the discharging support 3.

[0050] Regarding the specific setting of the feeding mechanism 7, refer to Figure 2 The feeding mechanism 7 includes a clamping member, a feeding track 72 and a driving member. The clamping member is a clamping cylinder 71. The clamping cylinder 71 has a first clamping jaw 711 and a second clamping jaw 712. The first clamping jaw 711 and the second clamping jaw 712 can be relatively close to or far away from each other, and clamp the twisted inner conductor when they are close to each other, and release the twisted inner conductor when they are far away from each other.

[0051] Reference Figure 2, a guide groove 5 is provided on the feeding track 72, and the guide groove 5 extends along the length direction of the round pressing channel 2. A guide member 6 is provided on the clamping cylinder 71, and the connection mode between the clamping cylinder 71 and the guide member 6 can be bolted. The guide member 6 is inserted into the guide groove 5, and the guide member 6 is used to drive the clamping cylinder 71 to move to a first position and a second position when moving along the length direction of the guide groove 5. The first position is a position away from the round pressing channel 2, and the second position is a position close to the round pressing channel 2. At the same time, the clamping cylinder 71 is used to clamp the twisted inner conductor when moving to the first position, and release the twisted inner conductor when moving to the second position. Therefore, the clamping cylinder 71 can continuously feed the twisted inner conductor into the round pressing channel 2 when cyclically moving between the first position and the second position.

[0052] Reference Figure 2 The driving member is used to drive the clamping cylinder 71 to move. Specifically, the driving member is the second cylinder 73. The cylinder body of the second cylinder 73 is fixedly connected to the feeding track 72 by bolts. The piston rod of the second cylinder 73 is fixedly connected to the clamping cylinder 71 by welding. Therefore, when the piston rod of the second cylinder 73 is extended or retracted, the clamping cylinder 71 will move relative to the feeding track 72 to transport the stranded inner conductor to the inside of the round pressing channel 2.

[0053] In addition, refer to Figure 2 or Figure 3 , the twisted inner conductor inside the rounding channel 2 will be rounded. Regarding the specific setting of the twisted inner conductor being rounded, the diameter of the rounding channel 2 is variable, and when the diameter of the rounding channel 2 is reduced, the twisted inner conductor inside the rounding channel 2 can be rounded. Figure 4 The outer surface of the stranded inner conductor before rounding is uneven, and then the stranded inner conductor will be tightened under the pressure of the rounding channel 2 and the outer surface will be rounded to form a finished stranded inner conductor. Figure 5 The outer surface of the finished twisted inner conductor is rounded. The finished twisted inner conductor has the internal structure of a twisted inner conductor, that is, it has multiple conductors that disperse the bending stress, so the finished twisted inner conductor has good flexibility. At the same time, because the surface of the finished twisted inner conductor is rounded, its conductive area is larger than that of a traditional twisted inner conductor, and the coaxial cable produced has lower attenuation.

[0054] For the specific settings of changing the diameter of the round pressing channel 2, refer to Figure 3The coaxial cable stranded inner conductor pressing device further comprises a driving mechanism 8, which is arranged on the frame 1 and is used to drive the diameter of the pressing channel 2 to change. Specifically, the driving mechanism 8 comprises a pressing member 81 and a first cylinder 82. The number of the pressing members 81 is multiple, specifically four. The four pressing members 81 are all provided with a pressing groove 811, which can be a quarter of a circular arc groove. The pressing grooves 811 on the four pressing members 81 form the pressing channel 2. The four pressing members 81 can approach or move away, and change the diameter of the pressing channel 2 when approaching or moving away. The first cylinder 82 is used to drive the pressing member 81 to move.

[0055] In order to enable a first cylinder 82 to drive multiple pressing members 81 to move simultaneously, refer to Figure 3 The four round pressing members 81 are divided into two groups, and the number of the round pressing members 81 in one group is two and they are arranged opposite to each other. The number of the first cylinders 82 is the same as the number of the groups of the round pressing members 81, and they correspond one to one. The coaxial cable twisted inner conductor round pressing device also includes a linkage mechanism, and a first cylinder 82 is connected to a group of round pressing members 81 through the linkage mechanism so that the group of round pressing members 81 are close to each other; the specific connection relationship between the first cylinder 82 and the group of round pressing members 81 is described in detail below by taking a group of round pressing members 81 and a first cylinder 82 as an example.

[0056] Reference Figure 3 The linkage mechanism includes a linkage rod 9, which is U-shaped. The linkage member is movably arranged on the frame 1. The linkage rod 9 includes an intermediate plate 91 and two opposite support arms 92, and the two support arms 92 are respectively connected to the two ends of the intermediate plate 91. The cylinder body of the first cylinder 82 is fixedly connected to the frame 1, and the fixed connection can be a bolt connection. The piston rod of the first cylinder 82 is fixedly connected to the intermediate plate 91, and the fixed connection method can be a bolt connection, so that when the piston rod of the first cylinder 82 is extended or retracted, the linkage member will move relative to the frame 1. The pressing member 81 is provided with an inclined surface 812, and the two support arms 92 are used to press the inclined surfaces 812 of the two pressing members 81 respectively during movement, so that the two pressing members 81 are close to each other. The specific meaning here is that one support arm 92 is used to press the inclined surface 812 of one pressing member 81 during movement, and the other support arm 92 is used to press the inclined surface 812 of another pressing member 81 of the same group during movement. Thus, only one cylinder is needed to achieve the simultaneous approach of the two pressing round members 81 .

[0057] Finally, refer to Figure 3The coaxial cable twisted inner conductor pressing device also includes a restoring member, which is used to provide a force for a group of pressing members 81 to move away from each other. Specifically, the restoring member is a spring 10, and a guide rod 11 is provided on the frame 1. Both ends of the guide rod 11 can be bolted to the frame 1. A guide block 12 is provided on the pressing member 81. The connection between the guide block 12 and the pressing member 81 can be welding or integrally formed. The guide rod 11 passes through the guide block 12; the spring 10 is sleeved on the guide rod 11, one end of the spring 10 is connected to the end of the guide rod 11, and the other end of the spring 10 is connected to the pressing member 81. The spring 10 is used to provide a force for the pressing member 81 to move away from another pressing member 81 in the same group. That is, when the spring 10 is in a natural state, the two pressing members 81 in the same group are in a state of moving away from each other.

[0058] The implementation principle of a coaxial cable twisted inner conductor rounding device in an embodiment of the present application is as follows: the clamping cylinder 71 first clamps the twisted inner conductor through the first clamping jaw 711 and the second clamping jaw 712, and then the second cylinder 73 drives the clamping cylinder 71 to move until the front end of the twisted inner conductor is sent into the rounding channel 2, and then the clamping cylinder 71 releases the twisted inner conductor, and the second cylinder 73 drives the clamping cylinder 71 again to move away from the rounding channel 2 to transport the twisted inner conductor that has not yet entered the rounding channel 2, and this cycle is repeated in sequence to transport the twisted inner conductor into the rounding channel 2.

[0059] Then the first cylinder 82 drives the linkage rod 9 to move, and the two arms 92 of the linkage rod 9 will respectively press the inclined surfaces 812 of the two round pressing parts 81 to make the two round pressing parts 81 approach each other. Thus, the diameter of the round pressing channel 2 becomes smaller, and at this time, the twisted inner conductor will be tightened under the pressure of the round pressing channel 2, and the outer surface will be rounded to form a finished twisted inner conductor. The finished twisted inner conductor has the internal structure of the twisted inner conductor, that is, it has multiple wires with dispersed bending stress, so the finished twisted inner conductor has good flexibility. At the same time, because the surface of the finished twisted inner conductor is rounded, the conductive area of ​​the surface is larger than that of the traditional twisted inner conductor, and the coaxial cable produced has lower attenuation.

[0060] The embodiment of the present application also discloses a production process for a coaxial cable twisted inner conductor, comprising the following steps: (a) inserting the twisted inner conductor into the pressing channel and passing it out from the supporting channel 4, while the clamping member is in the first position and clamps the twisted inner conductor; (b) the driving mechanism 8 drives the round pressing channel 2 to reduce its diameter to round the twisted inner conductor. When the diameter of the round pressing channel 2 is reduced, the twisted inner conductor will be subjected to the pressure of the inner wall of the round pressing channel 2, so that the twisted inner conductor is rounded and the inside is pressed to be compact; (c) the driving mechanism 8 drives the round pressing channel 2 to increase its diameter to loosen the twisted inner conductor; (d) The driving member drives the clamping member to move from the first position to the second position to feed the twisted inner conductor away from the round pressing channel 2 into the round pressing channel 2; (e) the driving mechanism 8 drives the round pressing channel 2 to reduce the diameter to round the twisted inner conductor to form a finished twisted inner conductor; (f) the clamping member releases the twisted inner conductor and moves from the second position to the first position; (g) the clamping member clamps the twisted inner conductor away from the round pressing channel 2 at this time; (h) the driving mechanism 8 drives the round pressing channel 2 to increase the diameter to release the twisted inner conductor; (i) steps (d) to (h) are repeated until all the twisted inner conductors are processed.

[0061] The implementation principle of the coaxial cable twisted inner conductor production process of the embodiment of the present application is: the twisted inner conductor placed in the rounding channel 2 will be rounded when the diameter of the rounding channel 2 becomes smaller, so that the finished twisted inner conductor has the internal structure of the twisted inner conductor, that is, it has multiple wires with dispersed bending stress, so that the finished twisted inner conductor has good flexibility. At the same time, because the surface of the finished twisted inner conductor is rounded, the conductive area of ​​its surface is larger than that of the traditional twisted inner conductor, and the coaxial cable produced by the coaxial cable twisted inner conductor production process has lower attenuation.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A coaxial cable stranded inner conductor rounding device, characterized in that: The invention comprises a frame (1), a feeding mechanism (7) and a driving mechanism (8), wherein the feeding mechanism (7) and the driving mechanism (8) are both arranged on the frame (1), a rounding channel (2) is arranged on the frame (1), and the feeding mechanism (7) is used to feed the stranded inner conductor into the rounding channel (2); The diameter of the round pressing channel (2) is variable, and the driving mechanism (8) is used to drive the diameter of the round pressing channel (2) to change; The driving mechanism (8) comprises a round pressing member (81) and a first cylinder (82); the number of the round pressing members (81) is multiple, and the multiple round pressing members (81) are all provided with a round pressing groove (811); the round pressing grooves (811) on the multiple round pressing members (81) form a round pressing channel (2); The plurality of round pressing members (81) can move closer or farther away, and the diameter of the round pressing channel (2) changes when they move closer or farther away. The first cylinder (82) is used to drive the round pressing members (81) to move. It also includes a linkage mechanism and a return member, wherein the plurality of circular pressing members (81) are divided into a plurality of groups, and the number of circular pressing members (81) in a group is two and they are arranged opposite to each other; The first cylinder (82) is connected to a group of round pressing members (81) through a linkage mechanism so that the group of round pressing members (81) are close to each other; The restoring member is used to provide a force for a group of circular pressing members (81) to move away from each other; The linkage mechanism comprises a linkage rod (9), the linkage rod (9) is U-shaped, the linkage rod (9) is movably arranged on the frame (1), and the linkage rod (9) comprises an intermediate plate (91) and two opposite supporting arms (92); The cylinder body of the first cylinder (82) is fixedly connected to the frame (1), and the piston rod of the first cylinder (82) is fixedly connected to the middle plate (91); The circular pressing member (81) is provided with an inclined surface (812), and the two supporting arms (92) are used to respectively press the inclined surfaces (812) of the two circular pressing members (81) during movement, so that the two circular pressing members (81) are moved closer to each other; The frame (1) is provided with a guide rod (11), the round pressing member (81) is provided with a guide block (12), and the guide rod (11) passes through the guide block (12); The return member is a spring (10), the spring (10) is sleeved on the guide rod (11), the spring (10) is connected to the round pressing member (81), and the spring (10) is used to provide a force for the round pressing member (81) to move away from another round pressing member (81) in the same group; It also includes a discharging support member (3), the feeding mechanism (7) includes a clamping member, a feeding track (72) and a driving member, the clamping member is movably arranged on the feeding track (72), the clamping member is used to clamp the twisted inner conductor when moving to a first position, and to release the twisted inner conductor when moving to a second position; The driving member is used to drive the clamping member to move to the first position and the second position; The material discharging support member (3) is arranged on the frame (1), and a supporting channel (4) is provided on the material discharging support member (3); The driving member is a second cylinder (73), the cylinder body of the second cylinder (73) is fixedly connected to the feeding track (72), and the piston rod of the second cylinder (73) is fixedly connected to the clamping member.

2. The coaxial cable stranded inner conductor rounding device according to claim 1, characterized in that: The feeding track (72) is provided with a guide groove (5), the clamping member is provided with a guide member (6), the guide member (6) is inserted into the guide groove (5), and the clamping member is used to move along the length direction of the guide groove (5) to a first position and a second position.

3. A process for producing a stranded inner conductor of a coaxial cable using the coaxial cable stranded inner conductor rounding device according to any one of claims 1 to 2, characterized in that: The following steps are involved: (a) inserting the twisted inner conductor into the compression channel and passing it through the support channel (4), while the clamping member is in the first position and clamps the twisted inner conductor; (b) the driving mechanism (8) drives the rounding channel (2) to reduce the diameter so as to round-press the twisted inner conductor; (c) the driving mechanism (8) drives the diameter of the round pressing channel (2) to increase so as to loosen the twisted inner conductor; (d) the driving member drives the clamping member to move from the first position to the second position so as to deliver the stranded inner conductor away from the round pressing channel (2) into the round pressing channel (2); (e) the driving mechanism (8) drives the round pressing channel (2) to reduce the diameter so as to press the round twisted inner conductor to form a finished twisted inner conductor; (f) the clamping member releases the twisted inner conductor and moves from the second position to the first position; (g) the clamping member clamps the stranded inner conductor which is now away from the round pressing channel (2); (h), the driving mechanism (8) drives the diameter of the round pressing channel (2) to increase so as to loosen the twisted inner conductor; (i) Repeat steps (d)-(h).

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