Method and device for processing outer conductor of leaky coaxial cable

Abstract

The invention discloses a method and a device for processing an outer conductor of a leaky coaxial cable, and the method employs a laser grooving machine to carry out segmented marking of groove groups on the outer conductor, and comprises the steps: inputting the size parameter, the marking sequence and the condition parameter of each segment of groove group into the laser grooving machine; the laser grooving machine sequentially marks each section of groove group according to the marking sequence of each section of groove group, and after the groove group of the current marking sequence is marked, the groove group is automatically switched to the groove group of the next marking sequence for marking until all the groove groups are marked; the method for marking each section of groove group by the laser grooving machine comprises the following steps of: loading a current marking sequence and size parameters of the corresponding groove group by the laser grooving machine, moving the outer conductor to a groove hole marking position for marking, generating a feedback parameter of the groove group of the current marking sequence after the marking of a single groove hole is finished, and if the feedback parameter meets a corresponding condition parameter, marking the groove group of the current marking sequence by the laser grooving machine. And completing the marking of the current marking sequence groove group. According to the invention, continuous grooving on the outer conductor during production of different groove groups of the leaky cable is realized.

Description

Technical Field

[0001] The present invention relates to the field of wireless communication technologies, and particularly to a method and device for processing an outer conductor of a leaky coaxial cable. Background Art

[0002] A leaky coaxial cable has a series of leaky holes opened in its outer conductor, enabling the transmitted energy to leak within a certain area to achieve both signal transmission and antenna radiation effects. In 5G wireless communication systems in tunnels, mines, and large indoor distribution sites where it is difficult to cover antenna signals, leaky coaxial cables have been widely used. During use, it is found that along the length direction of the leaky coaxial cable, the closer to the coverage area of the signal source device, the stronger the signal intensity, and even signal intensity excess may occur. The signal is weakest at the end of the leaky cable, and the overall distribution of the radiated signal is uneven. With the in-depth research on leaky coaxial cables, a new type of low-loss leaky coaxial cable has been introduced in the industry. Its biggest feature is to change the signal coupling intensity in different sections of the leaky cable, convert this part of the remaining signal into a longer-distance transmission to achieve the purpose of increasing the coverage distance, and the received signal level is evenly distributed along the length direction of the leaky cable.

[0003] The biggest difference between the above-mentioned low-loss leaky coaxial cable and traditional leaky cables is that a variety of continuously changing combined slots are opened on the outer conductor. Currently, there are several ways to open slots on the outer conductor of the leaky cable, such as punching with a punching machine, rolling with a roller, and laser grooving. However, if the above methods are used to open a variety of continuously changing combined slots on the outer conductor, there are the following problems: When using a punching machine for stamping and a roller for rolling, it is necessary to process multiple molds with different slot hole sizes according to the designed different combined slot types. During production, it is necessary to start and stop the machine multiple times to replace the molds. The processing cycle and cost of the molds are high, and they are easily worn during use. Moreover, the continuity between the slot hole groups opened on the outer conductor copper tape by molds of different slot sizes cannot be guaranteed. If there is a blank tape without continuous slot holes, it is necessary to reconnect the tape, resulting in a relatively high overall production cost and poor production quality. When using the laser grooving method, although there is no need to process molds of different sizes, since the production method of laser cutting the slot holes of the leaky cable outer conductor is a new processing method that emerged in recent years, and the leaky cable with evenly changing slot holes is also a new product emerging with the development of 5G communication, in the process of producing a leaky cable with gradually changing slot holes along the length by the existing laser grooving equipment in the industry, when switching between different slot hole groups, it is necessary to pause the laser marking, call out the next switching slot hole group or change the parameters of the slot group that changes gradually with the production length, and then start the laser marking for production. There is a problem that the normal continuity between different slot hole groups cannot be achieved during the start-stop switching, especially during mass production, the production efficiency is low, and the product quality will be affected.

[0004] Therefore, in order to improve the production efficiency of leaky cables, it is necessary to avoid the pause of the laser grooving machine when switching slot holes and achieve continuous grooving of leaky cables with different slot hole groups. Summary of the Invention

[0005] The object of the present invention is to overcome the above-mentioned disadvantages of the prior art, realize continuous grooving on the outer conductor when producing different slot groups of leaky cables, improve the production efficiency of leaky cables, and provide a method and device for processing the outer conductor of a leaky coaxial cable.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A method for processing the outer conductor of a leaky coaxial cable, which uses a laser grooving machine to segmentally mark slot groups on the outer conductor. Each segment of the slot group includes a plurality of slot holes with the same dimensional parameters, and the method includes the following steps: input the dimensional parameters, marking sequence, and condition parameters of each segment of the slot group into the laser grooving machine. The laser grooving machine sequentially marks each segment of the slot group according to the marking sequence of each segment of the slot group. After the marking of the slot group in the current marking sequence is completed, it automatically switches to the slot group in the next marking sequence for marking until all the slot groups are marked; the method for the laser grooving machine to mark each segment of the slot group is: the laser grooving machine loads the dimensional parameters of the current marking sequence and the corresponding slot group, the outer conductor moves to the slot hole marking position of the slot group in the current marking sequence, and at the same time, the slot holes in the slot group are sequentially marked according to the dimensional parameters of the slot group in the current marking sequence. After the marking of a single slot hole is completed, feedback parameters of the slot group in the current marking sequence are generated. If the feedback parameters of the slot group in the current marking sequence meet the corresponding condition parameters, the marking of the slot group in the current marking sequence is completed.

[0007] The present invention determines and judges the marking conditions of the laser grooving machine for the slot group in the current marking sequence through condition parameters, and automatically switches the slot group after the marking of the slot group in the current marking sequence is completed. Whether the slot shapes of adjacent slot holes are the same or different, the laser grooving machine can automatically and continuously operate through condition parameters without manual operation or switching.

[0008] A processing method for the outer conductor of a leaky coaxial cable, which uses a laser grooving machine to segmentally mark a groove group on the outer conductor. Each segment of the groove group includes multiple groove holes with the same dimensional parameters. The method includes the following steps: input the dimensional parameters of the basic groove hole into the laser grooving machine, input the marking sequence, gradient parameters, and condition parameters of each segment of the groove group into the laser grooving machine. The laser grooving machine sequentially marks each segment of the groove group according to the marking sequence of each segment of the groove group. After the marking of the groove group in the current marking sequence is completed, it automatically switches to the groove group in the next marking sequence for marking until all groove groups are marked. The method for the laser grooving machine to mark each segment of the groove group is as follows: The laser grooving machine loads the current marking sequence and gradually changes the dimensional parameters of the basic groove hole according to the gradient parameters corresponding to the current marking sequence to obtain the dimensional parameters of the groove group in the current marking sequence. The outer conductor moves to the marking position of the groove holes in the groove group in the current marking sequence, and at the same time, the groove holes in the groove group are sequentially marked according to the dimensional parameters of the groove group in the current marking sequence. After the marking of a single groove hole is completed, feedback parameters of the groove group in the current marking sequence are generated. If the feedback parameters of the groove group in the current marking sequence meet the corresponding condition parameters, the marking of the groove group in the current marking sequence is completed.

[0009] Preferably, the dimensional parameters include multiple ones among groove length, groove width, angle between the groove and the axis, period length, groove hole pitch, and groove hole spacing.

[0010] Preferably, the condition parameters include the marking length corresponding to each segment of the groove group.

[0011] Preferably, the condition parameters include the marking times corresponding to each segment of the groove group, and the marking times are the repeated times of the groove hole pitch in the groove group.

[0012] Preferably, the gradient parameters include the gradient variables of any one of groove length, groove width, angle between the groove and the axis, groove hole pitch, or groove hole spacing.

[0013] In order to improve the marking efficiency, dynamic marking is performed on the outer conductor. The moving speed of the outer conductor is synchronized with the marking speed of the laser grooving machine. When the outer conductor moves a period length of the groove holes in the groove group in the current marking sequence, the laser grooving machine completes the marking of a single groove hole in the groove group in the current marking sequence.

[0014] A processing device for the outer conductor of a leaky coaxial cable, based on the processing method for the outer conductor of a leaky coaxial cable, includes a tape feeding device, a tape feeding and storing device, a laser grooving machine, a tape receiving and storing device, and a tape receiving device arranged in sequence from the tape feeding direction to the tape receiving direction. A traction mechanism and a length measuring sensor are arranged on the laser grooving machine. The traction mechanism is used to drive the outer conductor. The length measuring sensor is connected to the control system of the laser grooving machine, and the length measuring sensor is used to detect the transmission distance of the outer conductor. The tape feeding and storing device is used for the reserve and replacement of the outer conductor raw material, and the tape receiving and storing device is used for the transfer of the marked outer conductor.

[0015] Preferably, both the tape - releasing and tape - storing device and the tape - rewinding and tape - storing device include a front traction roller, a rear traction roller, a fixed roller group, a floating roller group, and a counterweight. The front traction roller is used to export the outer conductor from the tape - storing device, the rear traction roller is used to import the outer conductor into the tape - storing device, the fixed roller group is arranged at a position slightly below the middle of the tape - releasing and tape - storing device or the tape - rewinding and tape - storing device for fixing the outer conductor, the floating roller group is used to drive the outer conductor to store tape by floating up and down, and the counterweight is used to apply tension to the outer conductor tape, thereby driving the floating roller group to float up or down.

[0016] In the present invention, the outer conductor is automatically moved by the traction mechanism, and it cooperates with the automatic switching of the slot hole size parameters by the control system of the laser grooving machine, realizing the automatic continuous marking of the slot group on the outer conductor. Through the tape - releasing and tape - storing device and the tape - rewinding and tape - storing device, it can ensure the continuous production of laser marking during the raw material disk change of the outer conductor and the unloading of the semi - finished product tape of the marked outer conductor in the production process. The raw material and semi - finished product can be loaded and unloaded without pausing the marking, improving the production efficiency.

[0017] The present invention realizes the continuous grooving on the outer conductor when the leaky cable produces different slot groups, improving the production efficiency of the leaky cable. During the entire processing of the outer conductor, each marking switch is automatically completed without pausing the laser marking to call out the next switching slot hole and then restarting the laser marking for production, solving the problem that different slot groups cannot be continuously normal during the start - stop switching in the prior art. Especially in large - batch production, the production efficiency is significantly improved and the product quality is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present invention in detail with reference to the drawings: Figure 1 It is a flowchart of the method in Embodiment 1 of the present invention.

[0019] Figure 2 It is a schematic structural diagram of the outer conductor in Embodiment 1 of the present invention.

[0020] Figure 3 It is a schematic structural diagram of the device in Embodiment 1 of the present invention.

[0021] Figure 4 It is a schematic structural diagram of Embodiment 2 of the present invention.

[0022] Figure 5 It is a schematic structural diagram of Embodiment 3 of the present invention.

[0023] Explanation of the reference numerals: 1. Inner conductor, 2. Insulator, 3. Outer conductor, 4. Tape wrapping, 5. Outer sheath, 6. Tape unwinding device, 7. Tape unwinding and storage device, 8. Laser notching machine, 9. Tape collection and storage device, 10. Tape collection device, 311. First combination slot, 312. Second combination slot, 313. Third combination slot, 321. Gradient slot, 331. Single combination slot. DETAILED DESCRIPTION

[0024] Example 1 like Figure 1 As shown, the present invention provides a method for processing the outer conductor of a leaky coaxial cable, which uses a laser notching machine to mark the slot group on the outer conductor in sections, and each slot group includes a plurality of slots with the same size parameters, including the following steps, inputting the size parameters, marking sequence and condition parameters of each slot group into the laser notching machine; the size parameters include multiple of slot length, slot width, angle between the slot and the axis, period length, slot pitch and slot spacing. The condition parameters include the marking length and marking times corresponding to each slot group. The marking length is the length of each slot group on the outer conductor. The marking times is the number of repetitions of the slot pitch in each slot group, that is, the number of slots in each slot group.

[0025] The laser notcher marks each slot group in sequence according to the marking sequence of each slot group. After the slot group of the current marking sequence is marked, it automatically switches to the slot group of the next marking sequence for marking until all slot groups are marked. The method for the laser notcher to mark each slot group is as follows: the laser notcher loads the current marking sequence and the size parameters of the corresponding slot group, the outer conductor moves to the slot hole marking position of the slot group of the current marking sequence, and at the same time, the slot holes in the slot group are marked in sequence according to the size parameters of the slot group of the current marking sequence. After the marking of a single slot hole is completed, the feedback parameters of the slot group of the current marking sequence are generated. If the feedback parameters of the slot group of the current marking sequence meet the corresponding condition parameters, the marking of the slot group of the current marking sequence is completed.

[0026] In order to improve the marking efficiency, the outer conductor is dynamically marked. The speed of the outer conductor movement is synchronized with the marking speed of the laser groove engraving machine. When the outer conductor moves one cycle length of the slot hole of the slot group in the current marking sequence, the laser groove engraving machine completes the marking of a single slot hole of the slot group in the current marking sequence.

[0027] In this embodiment, the laser notcher determines the marking conditions of the slot group in the current marking sequence through condition parameters and makes a judgment. After the marking of the slot group in the current marking sequence is completed, the slot group is automatically switched. When the slot types of adjacent slots are consistent or different, the laser notcher can automatically and continuously operate through the condition parameters without manual operation or switching. After the marking of the slot group in the last marking sequence is completed, the laser notcher stops notching.

[0028] likeFigure 2 As shown, in this embodiment, the slot group is provided with three segments, and each of the three segments of the slot group is provided with a type of slot, namely the first slot group 311, the second slot group 312, and the third slot group 313.

[0029] As Figure 3 shown, in this embodiment, the leaky coaxial cable includes an inner conductor 1, an insulator 2, an outer conductor 3, and an outer sheath 5 arranged in sequence from the inside to the outside. The inner conductor 1 is processed by longitudinal wrapping, welding, and grooving using a copper tube, a copper-clad aluminum tube, or a copper-clad aluminum wire. The insulator 2 is a physically foamed polyethylene. With azodicarbonamide as the foaming agent, high-pressure and high-purity carbon dioxide is injected into the molten polyethylene plastic, so that it fully combines with the nucleating agent and is mixed evenly in the fuselage. After the molten plastic is extruded from the die head, the huge pressure difference causes the gas to be released and expand rapidly, and the generated bubbles are evenly distributed, fine, and the foams are independent of each other and do not communicate with each other, thereby forming an insulator with high strength and high foaming degree. The outer conductor 3 can be made of metal strip materials with good electrical conductivity such as copper strip, aluminum strip, copper-plastic composite strip, and aluminum-plastic composite strip. In this embodiment, the outer conductor 3 is made of copper strip. After grooving the outer conductor 3, it is longitudinally wrapped on the insulator 2 after being grooved, and then through the outer sheath 5 extruder, the outer sheath 5 is extruded on the outer conductor 3. The grooving process of the outer conductor 3 is independently arranged on a production line, or the grooving process of the outer conductor 3, the longitudinal wrapping and forming of the outer conductor 3, and the extrusion of the outer sheath 5 are arranged on the same production line, which can reduce the material transfer and storage between processes, and thus improve the production efficiency. A tape 4 is arranged between the outer conductor 3 and the outer sheath 5, and the tape 4 is lap-wrapped on the outer conductor 3 by a wrapping machine, so that the outer conductor 3 is well and tightly attached to the insulator 2, further increasing the structural stability of the cable.

[0030] The present invention also provides a processing device for the outer conductor of a leaky coaxial cable. Based on the processing method of the outer conductor of the leaky coaxial cable, it includes a tape feeding device 6, a tape feeding and storing device 7, a laser grooving machine 8, a tape receiving and storing device 9, and a tape receiving device 10 arranged in sequence from the tape feeding direction to the tape receiving direction. A traction mechanism and a length measuring sensor are provided on the laser grooving machine 8. The traction mechanism is used to drive the outer conductor, and the length measuring sensor is used to detect the distance that the outer conductor 3 is driven. The tape feeding and storing device 7 is used for the reserve and replacement of the raw material of the outer conductor 3, and the tape receiving and storing device 9 is used for the transfer of the marked outer conductor 3. The outer conductor 3 is automatically moved through the traction mechanism, which cooperates with the automatic switching of the slot size parameters by the control system of the laser grooving machine 8, realizing the automatic and continuous marking of the slots on the outer conductor 3. The traction speed of the traction mechanism is synchronized with the marking speed of the laser grooving machine, that is, when the traction mechanism drives the outer conductor to move a cycle length of the current marked slot, the laser grooving machine completes the marking of the current marked slot. Through the tape feeding and storing device 7 and the tape receiving and storing device 9, it can ensure the continuous production of laser marking during the production process when the raw material of the outer conductor 3 is changed on the reel and the semi-finished product of the marked outer conductor 3 is taken off the reel. The raw material and semi-finished product can be loaded and unloaded without pausing the marking, improving the production efficiency. In this embodiment, both the tape feeding and storing device 7 and the tape receiving and storing device 9 include a front traction roller, a rear traction roller, a fixed roller group, a floating roller group, and a counterweight. The front traction roller is used to lead the outer conductor out of the tape storing device, and the rear traction roller is used to lead the outer conductor into the tape storing device. The fixed roller group is arranged at a position slightly below the middle of the tape feeding and storing device 7 or the tape receiving and storing device 9 for fixing the outer conductor. The floating roller group is used to drive the outer conductor to store the tape by floating up and down, and the counterweight is used to apply the tension on the outer conductor tape, thereby driving the floating roller group to float up or down.

[0031] In this embodiment, during specific processing, the size parameters of the three slot groups are input into the laser grooving machine, and the three slot groups are set to be arranged in the marking order as the first slot group 311, the second slot group 312, and the third slot group 313 in sequence. The corresponding marking times of the first slot group 311, the second slot group 312, and the third slot group 313 are set as n1, n2, and n3 respectively, and the corresponding marking lengths are l1, l2, and l3 respectively.

[0032] At the beginning, the laser grooving machine performs the first marking on the first groove group 311 in the first marking sequence. During the marking process, the traction mechanism drives the outer conductor to move at a set traction speed. The length measuring sensor simultaneously drives the meter counting and uploads the detection signal of the length measuring sensor to the control system of the laser grooving machine. When marking the first groove group 311, the moving speed of the light cursor of the laser grooving machine along the groove hole marking path on the outer conductor per unit time is the laser marking speed. The laser marking speed is synchronized with the traction speed, that is, when the outer conductor is driven by traction through a cycle length of the first groove group 311, the laser grooving machine just completes a single marking of the first groove group 311. After the single marking of the first groove group 311 is completed, it is judged whether the marked times or marked length in its feedback parameters meet the corresponding conditional parameter marked times n1 or marked length l1.

[0033] When the first groove group 311 finishes marking according to the set marked length l1, or when the first groove group 311 finishes marking according to the set marked times n1, the laser grooving machine calls out the dimension parameters of the second groove group 312 in the second marking sequence. The outer conductor continues to move under the traction of the traction mechanism, and at the same time the laser grooving machine marks the second groove group 312. After the single marking of the second groove group 312 is completed, it is judged whether the marked times or marked length in its feedback parameters meet the corresponding conditional parameter marked times n2 or marked length l2.

[0034] When the second groove group 312 finishes marking according to the set marked length l2, or when the second groove group 312 finishes marking according to the set marked times n2, the laser grooving machine calls out the dimension parameters of the third groove group 313 in the third marking sequence. The outer conductor continues to move under the traction of the traction mechanism, and at the same time the laser grooving machine marks the third groove group 313. After the single marking of the third groove group 313 is completed, it is judged whether the marked times or marked length in its feedback parameters meet the corresponding conditional parameter marked times n3 or marked length l3.

[0035] When the third groove group 313 finishes marking according to the set marked length l3, or when the third groove group 313 finishes marking according to the set marked times n3, the current marking sequence is the last marking sequence, and the laser grooving machine automatically stops marking. The production length can also be manually controlled. Taking the starting point of the laser grooving machine's marking as the origin, after marking the required length, the marking of the groove group is ended through the stop button.

[0036] In this embodiment, each marking switch during the entire outer conductor processing process is automatically completed, without the need to pause the laser marking, call out the next switching groove hole, and then start the laser grooving machine for marking, solving the problem that different groove groups cannot be continuously normal during the start-stop switching in the prior art. Especially in large-scale production, the production efficiency is significantly improved and the product quality is stable.

[0037] Embodiment 2 The difference between this embodiment and the above-mentioned Embodiment 1 is that, as Figure 4 shown, a method for processing the outer conductor of a leaky coaxial cable is to use a laser grooving machine to segmentally mark a groove group on the outer conductor. Each groove group includes a plurality of groove holes with the same dimensional parameters, and the method includes the following steps: input the dimensional parameters of the basic groove hole into the laser grooving machine, input the marking sequence, gradient parameters, and condition parameters of each groove group into the laser grooving machine. The gradient parameters include the gradient variables of any one of the groove length, groove width, angle between the groove and the axis, groove hole pitch, or groove hole spacing. The laser grooving machine sequentially marks each groove group according to the marking sequence of each groove group. After the marking of the groove group in the current marking sequence is completed, it automatically switches to the groove group in the next marking sequence for marking until all groove groups are marked. The method for the laser grooving machine to mark each groove group is as follows: the laser grooving machine loads the current marking sequence, and makes a gradient change to the dimensional parameters of the basic groove hole according to the gradient parameters corresponding to the current marking sequence to obtain the dimensional parameters of the groove group in the current marking sequence. The outer conductor moves to the groove hole marking position of the groove group in the current marking sequence, and at the same time, the groove holes in the groove group are sequentially marked according to the dimensional parameters of the groove group in the current marking sequence. After the marking of a single groove hole is completed, feedback parameters of the groove group in the current marking sequence are generated; if the feedback parameters of the groove group in the current marking sequence meet the corresponding condition parameters, the marking of the groove group in the current marking sequence is completed.

[0038] In this embodiment, the gradient parameter is set to a uniform increment of m° for the angle α between the axial direction of the groove hole and the axis of the outer conductor. The dimensional parameters of the groove holes in the groove group of the first marking sequence are the dimensional parameters of the basic groove hole rotated m° along the axis. The dimensional parameters of the groove holes in the second marking sequence are the dimensional parameters of the basic groove hole rotated 2m° along the axis. Set n groove groups, and the marking times of each groove group are p1, p2, p3,..., pn respectively, and the marking lengths of each groove group are q1, q2, q3,..., qn respectively. In another implementation manner, the gradient change of the dimensional parameters of the groove group in the first marking sequence can be 0, and its dimensional parameters can be the same as those of the basic groove hole. The dimensional parameters of the groove group in the second marking sequence can be the dimensional parameters of the basic groove hole rotated w° along the axis. The present invention will not elaborate here.

[0039] During specific processing, the laser grooving machine first generates the dimensional parameters of the groove group in the first marking sequence for the first marking. During the marking process, the traction mechanism drives the outer conductor to move at a set traction speed. The length measuring sensor simultaneously drives the length counting and uploads the detection signal of the length measuring sensor to the control system of the laser grooving machine. When marking the groove group in the first marking sequence, the moving speed of the cursor of the laser grooving machine along the groove hole marking path on the outer conductor per unit time is the laser marking speed. The laser marking speed is synchronized with the traction speed, that is, when the outer conductor is driven by traction through a cycle length of the groove group in the first marking sequence, the cursor of the laser grooving machine just completes a single marking of the groove group in the first marking sequence. After a single marking of the groove group in the first marking sequence is completed, it is judged whether the marked times or marked length in its feedback parameters meet the corresponding conditional parameter marked times p1 or marked length q1.

[0040] When the groove group in the first marking sequence is marked to the set marked length q1, the laser grooving machine rotates the basic groove hole by 2m° and then generates the dimensional parameters of the groove group in the second marking sequence. The outer conductor continues to move under the traction of the traction mechanism, and at the same time, the laser grooving machine marks the groove group in the second marking sequence. After a single marking of the groove group in the second marking sequence is completed, it is judged whether the marked times or marked length in its feedback parameters meet the corresponding marked times p2 or marked length q2.

[0041] When the groove group in the second marking sequence is marked to the set marked times p2 or marked length q2, the laser grooving machine continues to mark the groove groups in subsequent marking sequences. When the groove group in the last marking sequence is marked to the set marked times pn or marked length qn, the marking automatically stops. The production length can also be manually controlled. Taking the starting point of the laser grooving machine at the start of marking as the origin, after producing the required length, the marking of the groove group is ended by the stop button.

[0042] In this embodiment, during the entire processing of the outer conductor, each marking switch is automatically completed. There is no need to pause the laser marking, change the dimensional parameters of the groove holes that gradually change with the production length, and then start the laser marking for production. Except for the gradually changing parameters, other parameters between the groove holes of different groove groups remain continuously unchanged, solving the problem that different groove groups cannot be continuously normal during the start-stop switching in the prior art. Especially during mass production, the production efficiency is significantly improved and the product quality is stable.

[0043] Embodiment 3 The difference between this embodiment and the above Embodiment 1 is that, as Figure 5 shown, the dimensional parameters of each groove group in this embodiment are the same.

[0044] In this embodiment, during specific processing, the groove type and dimensional parameters of the groove group on the outer conductor are fixed. During production, marking is carried out in sequence according to the dimensional parameters of the slot hole 331. During the marking process by the laser grooving machine, the traction mechanism drives the outer conductor to move at a set traction speed. The length measuring sensor simultaneously drives the length counting and uploads the detection signal of the length measuring sensor to the control system of the laser grooving machine. The path along which the cursor of the laser grooving machine marks on the outer conductor within a unit time is the laser marking speed. The laser marking speed is synchronized with the traction speed, that is, when the outer conductor moves through a cycle length of the slot hole by traction drive, the cursor of the laser grooving machine just completes a single marking of the slot hole. The total marking length of the groove group is set according to the production length of the outer conductor, or the total number of repetitions of the slot pitch is set as the total number of markings. When the laser grooving machine has completed the set total marking length or total number of markings, or after producing the last groove group in sequence, the marking automatically stops. The production length can also be manually controlled. With the starting point of the laser grooving machine marking as the origin, after producing the required length, the marking of the groove group is ended by pressing the stop button.

[0045] In this embodiment, the outer conductor of the ordinary leaky coaxial cable is automatically and continuously marked. The shape and various parameters of the slot holes of the outer conductor are fixed and do not need to be switched or gradually changed during production. The outer conductor is automatically moved by the traction mechanism and cooperates with the automatic switching of the dimensional parameters of the slot holes by the control system of the laser grooving machine, realizing the automatic and continuous marking of the slot holes on the outer conductor.

[0046] The above is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. A method for processing an outer conductor of a leaky coaxial cable, characterized in that: A laser notcher is used to mark the slot groups on the outer conductor in sections, wherein each slot group includes a plurality of slot holes with the same size parameters, including the following steps: the size parameters, marking sequence and condition parameters of each slot group are input into the laser notcher, and the laser notcher marks each slot group in sequence according to the marking sequence of each slot group. After the marking of the slot group in the current marking sequence is completed, the laser notcher automatically switches to the slot group in the next marking sequence for marking until all slot groups are marked. The method for the laser notcher to mark each slot group is as follows: The laser groove engraving machine loads the current marking sequence and the corresponding size parameters of the slot group. The outer conductor moves to the slot hole marking position of the slot group of the current marking sequence. At the same time, the slot holes in the slot group are marked in turn according to the size parameters of the slot group of the current marking sequence. After the marking of a single slot hole is completed, the feedback parameters of the slot group of the current marking sequence are generated. If the feedback parameters of the slot group of the current marking sequence meet the corresponding conditional parameters, the marking of the slot group of the current marking sequence is completed.

2. A method for processing the outer conductor of a leaky coaxial cable, characterized in that: A laser notcher is used to mark the slot groups on the outer conductor in sections, wherein each slot group includes a plurality of slots with the same size parameters, including the following steps: Input the size parameters of the basic slot hole into the laser notching machine, input the marking order, gradient parameters and condition parameters of each slot group into the laser notching machine, and the laser notching machine will mark each slot group in sequence according to the marking order of each slot group. After the marking of the slot group in the current marking order is completed, it will automatically switch to the slot group in the next marking order for marking until all slot groups are marked. The method for the laser notching machine to mark each slot group is as follows: The laser groove engraving machine loads the current marking sequence, and gradually changes the size parameters of the basic slot holes according to the gradual parameters corresponding to the current marking sequence, and obtains the size parameters of the slot group of the current marking sequence. The outer conductor moves to the slot hole marking position of the slot group of the current marking sequence, and at the same time, the slot holes in the slot group are marked in turn according to the size parameters of the slot group of the current marking sequence. After the marking of a single slot hole is completed, the feedback parameters of the slot group of the current marking sequence are generated; if the feedback parameters of the slot group of the current marking sequence meet the corresponding conditional parameters, the marking of the slot group of the current marking sequence is completed.

3. The method for processing the outer conductor of a leaky coaxial cable according to claim 1 or 2, characterized in that: The dimensional parameters include multiple ones of the slot length, slot width, angle between the slot and the axis, period length, slot pitch and slot spacing.

4. The method for processing the outer conductor of a leaky coaxial cable according to claim 1 or 2, characterized in that: The condition parameters include the marking length corresponding to each groove group.

5. The method for processing the outer conductor of a leaky coaxial cable according to claim 1 or 2, characterized in that: The condition parameters include the number of markings corresponding to each slot group, and the number of markings is the number of repetitions of the slot hole pitch within the slot group.

6. The method for processing the outer conductor of a leaky coaxial cable according to claim 2, characterized in that: The gradient parameter includes the gradient of any parameter of the slot length, slot width, angle between the slot and the axis, slot pitch or slot spacing.

7. The method for processing the outer conductor of a leaky coaxial cable according to claim 1 or 2, characterized in that: The outer conductor moves at a speed synchronized with the marking speed of the laser notcher. When the outer conductor moves a period length of a slot hole of a slot group in a current marking sequence, the laser notcher completes the marking of a single slot hole of a slot group in a current marking sequence.

8. An outer conductor processing device for a leaky coaxial cable, based on the outer conductor processing method for a leaky coaxial cable according to any one of claims 1 to 7, characterized in that: It includes a tape unwinding device, a tape unwinding and storage device, a laser notching machine, a tape storage device and a tape taking-up device which are arranged in sequence from the unwinding direction to the tape taking-up direction. The laser notching machine is provided with a traction mechanism and a length measuring sensor. The traction mechanism is used for transmitting the outer conductor. The length measuring sensor is connected to the control system of the laser notching machine. The length measuring sensor is used for detecting the transmission distance of the outer conductor. The tape unwinding and storage device is used for the storage and replacement of the raw materials of the outer conductor. The tape taking-up and storage device is used for the transfer of the outer conductor after marking.

9. The outer conductor processing device of a leaky coaxial cable according to claim 8, characterized in that: The tape unwinding and tape storage device and the tape take-up and tape storage device both include a front traction roller, a rear traction roller, a fixed roller group, a floating roller group and a counterweight block. The front traction roller is used to guide the outer conductor out of the tape storage device, and the rear traction roller is used to guide the outer conductor into the tape storage device. The fixed roller group is arranged at a lower middle position of the tape unwinding and tape storage device or the tape take-up and tape storage device, and is used to fix the outer conductor. The floating roller group is used to drive the outer conductor storage tape by floating up and down. The counterweight block is used to apply tension to the outer conductor tape, thereby driving the floating roller group to float up or down.

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