阅读说明：本技术 一种漏泄电缆外导体铜带带料冲孔装置及方法 (Device and method for punching strip material of copper strip of outer conductor of leaky cable ) 是由 严骁智 王念立 祝建峰 邱石 胡志杰 于 2021-10-09 设计创作，主要内容包括：本发明公开了一种漏泄电缆外导体铜带带料冲孔装置及方法。所述装置,包括冲孔模块、牵引模块、以及控制模块；所述冲孔模块,包括多个沿铜带带料运动方向布设且与周期的节距相匹配的冲孔组件；所述冲孔组件,用于形成一个周期内的所有槽孔；所述控制模块与牵引模块、冲孔模块信号相连,用于控制所述牵引模块按照预设的速度牵引铜带带料处于所述冲孔模块工作范围,以及用于控制所述冲孔模块使得预设的冲孔组件在冲孔作业时隙内进行冲孔作业。所述方法使得所述多个冲孔组件其中之一按照其位置依次唯一地处于工作状态。本发明实现分段耦合的漏泄电缆不同区段内不同槽孔的冲孔作业,外导体铜带带料无需接带,生产效率高、产品稳定可靠。(The invention discloses a device and a method for punching a copper strip material of an external conductor of a leaky cable. The device comprises a punching module, a traction module and a control module; the punching module comprises a plurality of punching assemblies which are distributed along the movement direction of the copper strip and are matched with the periodic pitches; the punching assembly is used for forming all slotted holes in one period; the control module is in signal connection with the traction module and the punching module, and is used for controlling the traction module to pull the copper strip to be in the working range of the punching module according to a preset speed and controlling the punching module to enable a preset punching assembly to perform punching operation in a punching operation time slot. The method enables one of the punching assemblies to be in a working state according to the position of the punching assembly. The invention realizes the punching operation of different slotted holes in different sections of the leaky cable in sectional coupling, the outer conductor copper strip does not need to be connected, the production efficiency is high, and the product is stable and reliable.)

1. A leaky cable outer conductor copper strip punching device is characterized by comprising a punching module, a traction module and a control module;

the punching module comprises a plurality of punching assemblies which are distributed along the movement direction of the copper strip and are matched with the periodic pitches; the punching assembly is used for forming all slotted holes in one period;

the control module is in signal connection with the traction module, sends a control signal to the traction module and is used for controlling the traction module to pull the copper strip material to be in the working range of the punching module according to a preset speed;

the control module is in signal connection with the punching module, sends a control signal to the punching module and is used for controlling the punching module to enable a preset punching assembly to perform punching operation in a punching operation time slot.

2. The leaky cable outer conductor copper strip punching apparatus as claimed in claim 1, wherein said plurality of punching assemblies are maintained in an adjacent relationship in accordance with positions of slots formed therein on the copper strip; the punching assemblies are preferably arranged in sequence according to the positions of the slotted holes formed by the punching assemblies on the copper strip.

3. The leaky cable outer conductor copper strip punching apparatus as claimed in claim 2, wherein said 1 st to nth punching assemblies are arranged in sequence in the order of 1 st to nth in a drawing direction of the copper strip.

4. The device for punching the copper strip of the leaky cable outer conductor according to claim 2, wherein when the copper strip is segmented into the palindromic structure, the copper strip is sequentially divided into 1 st to nth segments according to the types of the periodic slots, the structures of the 1 st to nth segments are the same as those of the N st to 1 st segments, the sections matched with the palindromic structure form the periodic slots by using the same punching assembly, the punching assemblies for forming the slots of the 1 st to nth segments are respectively the 1 st to (N +1)/2 th punching assemblies, and the 1 st to (N +1)/2 th punching assemblies are sequentially arranged.

5. The leaky cable outer conductor copper strip punching apparatus as claimed in claim 1, wherein said traction module is adapted to pull the pulled end of the copper strip stepwise with a period pitch as a step, and said control module sends a control signal including the number of pulling steps in the time slot to the traction module according to the time slot of the punching operation.

6. The leaky cable outer conductor copper strip punching device as claimed in claim 1, wherein the punching assembly comprises an upper die holder, a knife-edge male die, a punch fixed on the knife-edge male die, a knife-edge female die, a lower die holder, a guide rail and a protection template; the upper die base is provided with a knife edge male die which is fixedly connected with one end of the guide rail, and the bottom end of the knife edge male die is provided with a punch; the lower die holder is provided with a knife edge female die which is fixed with the other end of the guide rail; the upper die base is positioned right above the lower die base and moves relatively along a vertically arranged guide rail; a protective template is arranged between the knife edge convex die and the knife edge concave die, and the minimum relative distance between the protective substrate and the knife edge convex die is provided with a first gear and a second gear, so that the punching assembly is in a working state and a standby state respectively.

7. The leaky cable outer conductor copper strip punching device as claimed in claim 6, wherein the protective substrate has a through hole matched with a punch, when the punching assembly is in an operating state, the minimum relative distance between the protective substrate and the knife-edge male die is a first gear, and when the upper die plate falls down along the guide rail, the punch at the bottom end of the knife-edge male die penetrates through the protective die plate and is matched with the knife-edge female die arranged on the lower die holder to complete copper strip punching; when the punching assembly is in a standby state, the minimum relative distance between the protective substrate and the knife edge convex die is a second gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die is shielded by the protective template and does not contact with a copper strip.

8. A method for punching a leaky cable outer conductor copper strip, characterized in that the device for punching a leaky cable outer conductor copper strip as claimed in any one of claims 1 to 7 is applied so that one of the plurality of punching assemblies is sequentially and uniquely in an operating state according to the position of the punching assembly.

9. The method for punching the leaky cable outer conductor copper strip as claimed in claim 8, wherein the leaky cable outer conductor copper strip punching apparatus is provided with a plurality of punching assemblies as claimed in any one of claims 1 to 7, and the punching assemblies are arranged in an adjacent relationship according to positions of slots formed by the punching assemblies and the slots are located on the copper strip;

when slot switching between sectors:

according to the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section, the control module sends a control signal containing traction step number +1 or-1 to the traction module,

the traction module pulls the copper strip to step forward by a distance of 2 pitches or keeps still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number +1 or-1 sent by the control module,

the punching module switches the punching assembly provided with the corresponding slotted hole in the next section to be in a working state, and other punching assemblies are in a standby state, so that the copper strip is punched to complete the first punching operation in the section;

preferably, the adjacent mode of the punching assembly with the corresponding slot hole in the next section and the punching assembly with the corresponding slot hole in the current section enables the control module to send a control signal containing the traction step number +1 or-1 to the traction module, specifically:

when the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section is cis-adjacent, namely the punching assembly with the corresponding slotted hole in the next section is far away from the pulled end of the copper strip relative to the punching assembly with the corresponding slotted hole in the current section, the control module sends a control signal containing the pulling step number-1 to the pulling module;

when the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section is trans-adjacent, namely the punching assembly with the corresponding slotted hole in the next section is close to the pulled end of the copper strip relative to the punching assembly with the corresponding slotted hole in the current section, the control module is enabled to send a control signal containing the pulling step number +1 to the pulling module;

preferably, the pulling module pulls the copper strip to step forward by a distance of 2 pitches or keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the pulling step number +1 or-1 sent by the control module, specifically:

the traction module is used for drawing the copper strip material to step forward by a distance of 2 pitches at the beginning of the first punching operation time slot of the section according to a control signal which contains the traction step number +1 and is sent by the control module; or

And the traction module is used for drawing the copper strip material to keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number-1 sent by the control module.

10. The method for punching the copper strip of the leaky cable outer conductor as claimed in claim 8, wherein in a section of the copper strip designed with a corresponding slot, said control module sends a control signal including a number of pulling steps of 1 to the pulling module according to a time slot of a punching operation; and the traction module pulls the copper strip to step forward by a distance of 1 pitch at the beginning of each punching operation time slot, and the punching assembly is adopted to punch the copper strip in the punching operation time slot until the slotted hole punching of the corresponding section is completed.

Technical Field

The invention belongs to the field of leaky cable processing, and particularly relates to a device and a method for punching a copper strip material of an outer conductor of a leaky cable.

Background

A leaky cable is a coaxial cable that allows leakage of the outer conductor. However, the transmission loss of a single core wire or a twisted pair wire is too large for high frequency, and the waveguide has a large size and is expensive, so that the widely used leaky feeder is a coaxial cable in which a thin copper sheet is used as an outer conductor and slots of different forms are cut in the outer conductor. Leaky cables can be divided into two categories: coupled and radiating. The electromagnetic energy leaked by the coupling type leakage cable is non-directional and is rapidly reduced along with the increase of the distance, the radiation type leakage has directivity, the same leakage energy can be relatively concentrated in the radiation direction and is not rapidly reduced along with the increase of the distance, and the coupling loss is relatively small in a specific frequency and a specific direction. How to improve the system loss performance of leaky cables is an important issue in the art.

The system loss performance index of the leaky cable is defined as the sum of the transmission attenuation and the coupling loss of the leaky cable, and the index is an important basis for the link design. The outer conductor of the traditional leaky cable is generally provided with one or a class of slotted holes periodically and repeatedly, so that the transmission attenuation constant along the line is consistent with the coupling loss performance, but the total transmission attenuation is increased along with the increase of the coverage distance, so that the system loss of the leaky cable is increased, the system loss of the leaky cable is large, and the requirement of high-speed rail 5G coverage cannot be met. Aiming at the problem, a leaky cable product with sectional coupling and slotting (or performance gradual change) appears in the industry, namely, the attenuation constant and the coupling loss performance of transmission along the line are not constant any more, but the attenuation constant is smaller and the coupling loss is larger closer to the signal source side, and the attenuation constant is larger and the coupling loss is smaller farther away from the signal source side, so that the actual field intensity distribution along the leaky cable is more uniform compared with the conventional leaky cable, and the system loss of the whole line can be greatly reduced.

However, for the existing leaky cable product with sectional coupling slotting, copper strips with different slotted holes need to be welded, riveted or directly contacted, and a sectional punching device is not available, so that sectional punching cannot be achieved.

Disclosure of Invention

The invention provides a device and a method for punching a copper strip material of an external conductor of a leaky cable, aiming at overcoming the defects or the improvement requirements in the prior art, and aiming at providing a plurality of punching components which are distributed along the movement direction of the copper strip material and are matched with the periodic pitch, working sequentially and continuously forming different slots on the copper strip material so as to complete the punching of the copper strip material of the external conductor of the leaky cable in a sectional coupling manner, so that the technical problems of complicated production process, low efficiency, uneven external conductor strip material, increased system loss and reduced mechanical reliability caused by the fact that the copper strip material of the external conductor of the leaky cable needs to be manufactured and then connected according to sections at present are solved.

In order to achieve the above object, according to one aspect of the present invention, there is provided a copper strip punching device for an outer conductor of a leaky cable, comprising a punching module, a traction module, and a control module;

the punching module comprises a plurality of punching assemblies which are distributed along the movement direction of the copper strip and are matched with the periodic pitches; the punching assembly is used for forming all slotted holes in one period;

the control module is in signal connection with the traction module, sends a control signal to the traction module and is used for controlling the traction module to pull the copper strip material to be in the working range of the punching module according to a preset speed;

the control module is in signal connection with the punching module, sends a control signal to the punching module and is used for controlling the punching module to enable a preset punching assembly to perform punching operation in a punching operation time slot.

Preferably, the punching device for the copper strip of the external conductor of the leaky cable has the plurality of punching assemblies which are kept in an adjacent relation according to the positions of the slots formed by the punching assemblies on the copper strip.

Preferably, the punching devices for the copper strip of the external conductor of the leaky cable are sequentially arranged according to the positions of the slots formed by the punching components on the copper strip.

Preferably, the 1 st to nth punching assemblies of the punching device for the copper strip of the leaky cable outer conductor are sequentially arranged in the 1 st to nth sequence in the drawing direction of the copper strip.

Preferably, when the copper strip material is segmented into the palindromic structure, that is, the copper strip material is sequentially divided into the 1 st to nth sections according to the types of the periodic slots, the structures of the 1 st to nth sections are the same as those of the N st to 1 st sections, the sections matched with the palindromic structure form the periodic slots by using the same punching assembly, the punching assemblies for forming the slots of the 1 st to nth sections are the 1 st to (N +1)/2 th punching assemblies respectively, and the 1 st to (N +1)/2 th punching assemblies are sequentially arranged.

Preferably, in the punching device for the copper strip of the leaky cable outer conductor, the traction module of the punching device pulls the pulled end of the copper strip in a stepping manner with a period pitch as a step length, and the control module sends a control signal containing the number of the pulling steps in the time slot to the traction module according to the punching operation time slot.

Preferably, the punching assembly of the punching device for the copper strip of the outer conductor of the leaky cable comprises an upper die holder, a knife edge male die, a punch fixed on the knife edge male die, a knife edge female die, a lower die holder, a guide rail and a protective template; the upper die base is provided with a knife edge male die which is fixedly connected with one end of the guide rail, and the bottom end of the knife edge male die is provided with a punch; the lower die holder is provided with a knife edge female die which is fixed with the other end of the guide rail; the upper die base is positioned right above the lower die base and moves relatively along a vertically arranged guide rail; a protective template is arranged between the knife edge convex die and the knife edge concave die, and the minimum relative distance between the protective substrate and the knife edge convex die is provided with a first gear and a second gear, so that the punching assembly is in a working state and a standby state respectively.

Preferably, the protection substrate of the punching device for the copper strip of the outer conductor of the leaky cable is provided with a through hole matched with a punch, when the punching assembly is in a working state, the minimum relative distance between the protection substrate and the knife edge convex die is a first gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die penetrates through the protection template and is matched with a knife edge concave die arranged on a lower die holder to complete punching of the copper strip; when the punching assembly is in a standby state, the minimum relative distance between the protective substrate and the knife edge convex die is a second gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die is shielded by the protective template and does not contact with a copper strip.

According to another aspect of the invention, the invention provides a leaky cable outer conductor copper strip punching method, which applies the leaky cable outer conductor copper strip punching device provided by the invention to enable one of the punching assemblies to be in a working state uniquely according to the position of the punching assembly.

Preferably, the leaky cable outer conductor copper strip punching method is a leaky cable outer conductor copper strip punching device which is provided by the invention and maintains adjacent relation according to the positions of slots formed by a plurality of punching components on the copper strip;

when slot switching between sectors:

according to the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section, the control module sends a control signal containing traction step number +1 or-1 to the traction module,

the traction module pulls the copper strip to step forward by a distance of 2 pitches or keeps still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number +1 or-1 sent by the control module,

the punching module switches the punching assembly provided with the corresponding slotted hole in the next section to be in a working state, and other punching assemblies are in a standby state, so that the copper strip is punched to complete the first punching operation in the section;

preferably, the adjacent mode of the punching assembly with the corresponding slot hole in the next section and the punching assembly with the corresponding slot hole in the current section enables the control module to send a control signal containing the traction step number +1 or-1 to the traction module, specifically:

when the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section is cis-adjacent, namely the punching assembly with the corresponding slotted hole in the next section is far away from the pulled end of the copper strip relative to the punching assembly with the corresponding slotted hole in the current section, the control module sends a control signal containing the pulling step number-1 to the pulling module;

when the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section is trans-adjacent, namely the punching assembly with the corresponding slotted hole in the next section is close to the pulled end of the copper strip relative to the punching assembly with the corresponding slotted hole in the current section, the control module is enabled to send a control signal containing the pulling step number +1 to the pulling module;

preferably, the pulling module pulls the copper strip to step forward by a distance of 2 pitches or keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the pulling step number +1 or-1 sent by the control module, specifically:

the traction module is used for drawing the copper strip material to step forward by a distance of 2 pitches at the beginning of the first punching operation time slot of the section according to a control signal which contains the traction step number +1 and is sent by the control module; or

And the traction module is used for drawing the copper strip material to keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number-1 sent by the control module.

Preferably, in the method for punching the copper strip of the outer conductor of the leaky cable, in a copper strip section provided with corresponding slots, the control module sends a control signal containing 1 traction step number to the traction module according to a punching operation time slot; and the traction module pulls the copper strip to step forward by a distance of 1 pitch at the beginning of each punching operation time slot, and the punching assembly is adopted to punch the copper strip in the punching operation time slot until the slotted hole punching of the corresponding section is completed.

In general, compared with the prior art, the above technical solution contemplated by the present invention can achieve the following beneficial effects:

according to the copper strip punching device for the outer conductor of the leaky cable, provided by the invention, a plurality of punching assemblies matched with the periodic pitch are arranged along the movement direction of the copper strip, the punch die does not need to be changed, the movement precision of the existing strip punching device is compatible, the movement precision control of the punching assemblies is not needed to be more complicated, the punching operation of different slotted holes in different sections of the leaky cable in segmented coupling can be realized, the strip of the outer conductor copper strip does not need to be connected, the technical problems of complicated production process, low efficiency, uneven strip of the outer conductor, increase of system loss and reduction of mechanical reliability caused by welding, riveting or direct contact of the strip are avoided, the production efficiency is high, and the product is stable and reliable.

The method for punching the outer conductor copper strip of the leaky cable provided by the invention adopts step control, solves the problem of switching different punching assemblies among sections, and can realize continuous large-scale, batch and segmented coupling production of the outer conductor copper strip of the leaky cable.

Drawings

FIG. 1 is a schematic structural diagram of a copper strip punching device for an external conductor of a leaky cable provided by the invention;

FIG. 2 is a schematic diagram of the punching module configuration;

FIG. 3 is a schematic structural diagram of a copper strip slot of an outer conductor of a segmented coupling leaky cable with a palindromic structure according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a one-pitch internal breakpoint splay groove of a leaky cable designed according to an embodiment of the invention.

The same reference numbers will be used throughout the drawings to refer to the same or like elements or structures, wherein:

the device comprises a punching module 1, a traction module 2, a control module 3, a copper strip 4, a punching assembly 11, an upper die base 12, a knife edge male die 13, a punch 14, a knife edge female die 15, a lower die base 16, a guide rail 17, a protective template 18 and a spring 19.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The mechanical punching device is generally adopted for producing the copper strip with the slotted hole, and the punching device is used for producing the copper strip of the leakage cable. The existing segmented coupling leaky cable needs to weld, rivet or directly contact copper strips with different slotted holes, so that the problems of uneven copper strips, increased system loss and reduced mechanical reliability can be caused, the production process is complex, the efficiency is low, and the subsequent cable manufacturing process is more complex.

The invention provides a punching device for a copper strip material of an external conductor of a leaky cable, which comprises a punching module, a traction module and a control module, wherein the punching module is shown in figure 1; the control module is in signal connection with the traction module, sends a control signal to the traction module and is used for controlling the traction module to pull the copper strip material to be in the working range of the punching module according to a preset speed; preferably, the traction module is used for step-by-step traction of the pulled end of the copper strip material by taking the period pitch as the step length, and the control module is used for sending a control signal containing the traction step number in the time slot to the traction module according to the punching operation time slot.

The punching module is structurally shown in FIG. 2 and comprises a plurality of punching assemblies which are distributed along the movement direction of the copper strip and are matched with the periodic pitches; the control module is in signal connection with the punching module, sends a control signal to the punching module and is used for controlling the punching module to enable a preset punching assembly to perform punching operation in a punching operation time slot;

the punching assembly is used for forming all slot holes in one period and comprises an upper die holder, a knife edge male die, a punch fixed on the knife edge male die, a knife edge female die, a lower die holder, a guide rail and a protective template; the upper die base is provided with a knife edge male die which is fixedly connected with one end of the guide rail, and the bottom end of the knife edge male die is provided with a punch; the lower die holder is provided with a knife edge female die which is fixed with the other end of the guide rail; the upper die base is positioned right above the lower die base and moves relatively along a vertically arranged guide rail; a protective template is arranged between the knife edge convex die and the knife edge concave die, and the minimum relative distance between the protective substrate and the knife edge convex die is provided with a first gear and a second gear, so that the punching assembly is respectively in a working state and a standby state;

the protective substrate is provided with a through hole matched with a punch, when the punching assembly is in a working state, the minimum relative distance between the protective substrate and the knife edge convex die is a first gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die penetrates through the protective template and is matched with the knife edge concave die arranged on the lower die holder to complete punching of the copper strip; when the punching assembly is in a standby state, the minimum relative distance between the protective substrate and the knife edge convex die is a second gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die is shielded by the protective template and does not contact with a copper strip.

The punching assemblies keep adjacent relation according to the positions of the slotted holes formed by the punching assemblies on the copper strip; when the copper strip is sequentially divided into the 1 st segment to the Nth segment, the punching assemblies for forming the slotted holes of the N-th segment and the N-1 st segment are adjacent, and N is 2,3, …, N;

preferably, the punching assemblies are sequentially arranged according to the positions of the slotted holes formed by the punching assemblies on the copper strip; specifically, the method comprises the following steps: when the copper strip is divided into 1 st to Nth sections in sequence according to the types of the periodic grooves, the punching assemblies for forming the 1 st to Nth sections of the groove holes are 1 st to Nth punching assemblies respectively, and the 1 st to Nth punching assemblies are arranged in sequence. Preferably, the 1 st to Nth punching assemblies are sequentially arranged in the drawing direction of the copper strip according to the 1 st to Nth sequence, namely the 1 st punching assembly is close to the drawn end of the copper strip; according to the sequence, the switching control of the copper strip material segmentation section is easy, and the efficiency is high.

Preferably, when the copper strip is segmented into the palindromic structure, namely the copper strip is sequentially divided into 1 st to nth sections according to the type of the periodic grooving, the structures of the 1 st to nth sections are the same as those of the N st to 1 st sections, the sections matched with the palindromic structure form periodic slotted holes by using the same punching assembly, the punching assemblies for forming the slotted holes of the 1 st to nth sections are respectively the 1 st to (N +1)/2 th punching assemblies, and the 1 st to (N +1)/2 th punching assemblies are sequentially arranged. Because the copper strip material is segmented into the palindromic structure, the segments at the two ends of the copper strip material are respectively matched, an independent segment exists in the middle, the segments are cardinal numbers, the type of the slotted holes is half of the number of the segments plus 1, the slotted hole punching of the whole section of the copper strip material can be completed only by punching components with corresponding numbers, the copper strip material segmentation and the type matching of the slots in the segments are only needed, and the length of each segment does not influence the arrangement mode among a plurality of punching components. Generally, when the coaxial cable satisfies the length of the laying section, signal radiation is performed from both ends of the laying section, so that the design of the sectionally coupled coaxial cable is mostly a symmetrical palindrome structure. Half of the punch assemblies are designed to significantly reduce the cost of the apparatus, but the cost of control is somewhat increased.

The leaky cable coupled in sections needs a copper strip slotted in sections, male die replacement is generally carried out or a plurality of punching assemblies are generally designed, and the plurality of punching assemblies are sequentially switched to punching stations to be punched and slotted so as to meet the requirement of the existing stepping type copper strip pulling mode. However, the movement mode of the punching assembly can be changed due to the design, and the precision requirement of the leaky cable production process on the copper strip punching is very high, so that the movement precision of the punching assembly for switching paths and the punching stroke is quite high, the cost of the outer conductor copper strip punching device is increased rapidly, and the debugging difficulty is greatly increased. The invention adopts the design of continuously arranging a plurality of punching assemblies along the movement direction of the copper strip, and can complete the punching of the copper strip of the external conductor of the modified leaky cable only by one-time loading and debugging of the punching assemblies for one type of leaky cable.

However, the punching component layout device provided by the invention changes the relative position of the punch on the copper strip, and the period and the pitch need to be registered again when the slotted holes at the segments are switched. To simplify pitch registration control, the multiple punch assemblies are arranged in a matched pitch arrangement, i.e., each punch assembly forms all slots in one cycle, and the positions between the multiple punch assemblies are arranged in a matched cycle pitch. The design simplifies the periodic registration problem during slot switching at the subsection, but still has the difficulty of traction control.

The invention provides a method for punching a copper strip material of an outer conductor of a leaky cable, which comprises the following steps:

the leaky cable outer conductor copper strip punching device is arranged by applying the plurality of punching components according to the position of the slotted holes formed on the copper strip in an adjacent relationship;

enabling one of the punching assemblies to be in a working state according to the position of the punching assembly; when one of the punching assemblies is in a working state, all other punching assemblies are in a standby state, and the punching assemblies are in a working state in sequence;

in a copper strip section with a corresponding slot hole, the control module sends a control signal containing a traction step number of 1 to the traction module according to a punching operation time slot; the traction module pulls the copper strip to step forward by a distance of 1 pitch at the beginning of each punching operation time slot, and the punching assembly is adopted to punch the copper strip in the punching operation time slot until the slotted hole punching of the corresponding section is completed;

when slot switching between sectors:

according to the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section, the control module sends a control signal containing traction step number +1 or-1 to the traction module,

the traction module pulls the copper strip to step forward by a distance of 2 pitches or keeps still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number +1 or-1 sent by the control module,

the punching module switches the punching assembly provided with the corresponding slotted hole in the next section to be in a working state, and other punching assemblies are in a standby state, so that the copper strip is punched to complete the first punching operation in the section;

the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section enables the control module to send a control signal containing traction step number +1 or-1 to the traction module, and the method specifically comprises the following steps:

when the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section is cis-adjacent, namely the punching assembly with the corresponding slotted hole in the next section is far away from the pulled end of the copper strip relative to the punching assembly with the corresponding slotted hole in the current section, the control module sends a control signal containing the pulling step number-1 to the pulling module;

when the adjacent mode of the punching assembly with the corresponding slotted hole in the next section and the punching assembly with the corresponding slotted hole in the current section is trans-adjacent, namely the punching assembly with the corresponding slotted hole in the next section is close to the pulled end of the copper strip relative to the punching assembly with the corresponding slotted hole in the current section, the control module is enabled to send a control signal containing the pulling step number +1 to the pulling module;

the traction module sends a control signal containing traction step number +1 or-1 according to the control module, and pulls the copper strip to step forward by a distance of 2 pitches or keep still when the first punching operation time slot of the section starts, specifically:

the traction module is used for drawing the copper strip material to step forward by a distance of 2 pitches at the beginning of the first punching operation time slot of the section according to a control signal which contains the traction step number +1 and is sent by the control module; or

And the traction module is used for drawing the copper strip material to keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number-1 sent by the control module.

The invention provides a method for punching a leaky cable outer conductor copper strip, which aims at the device for punching the leaky cable outer conductor copper strip, and can keep the traction step length unchanged when the punching assemblies are switched among different sections by utilizing the characteristic that the position arrangement among a plurality of punching assemblies is matched with the period pitch, and realize the switching of different punching assemblies among the sections only through the change of the step number.

Preferably, a plurality of punching assemblies are adjacent in a cis form, and when the punching assemblies are switched among the sections, only the working state or the standby state of the punching assemblies needs to be switched, so that the efficiency is highest. When the copper strip material is segmented into the palindromic structure, the adjacent states of the punching assemblies are respectively switched by the aid of the shared punching assemblies due to the palindromic structure, and the time slot length during interval switching is twice as long as the time slot of in-segment punching operation under the condition that the movement speed is unchanged although the switching of the anti-adjacent punching assemblies is time-consuming, but after the leaky cable outer channel strip lifting processing of one laying interval is finished, the copper strip material of the next laying interval can be directly loaded without debugging the punching assemblies, so that the large-scale, mass and continuous production of the segmented coupling cable outer conductor copper strip material with the palindromic structure is conveniently realized.

The following takes a segmented coupling leaky cable with a palindromic structure as an example, and further details the specific scheme of the invention:

the schematic structural diagram of the copper strip slot of the external conductor of the segmented coupling leaky cable with the palindromic structure is shown in fig. 3:

the outer conductor comprises a forward first section, namely a 1 st section, a forward first section and a forward second section, wherein the forward first section is connected end to end in sequence and has a length of 150-250 m,

A second forward section with a length of 50-100 m, a 2 nd section,

A middle section with a length of 80-200 m, a 3 rd section,

A negative second section of between 50 and 100 meters in length, a 4 th section, and

a negative first section, 5 th section, with a length of 150-250 m;

each section has a periodic broken-point splayed groove with the same type, as shown in fig. 4, the positive first section and the negative second section have the same groove hole respectively;

the invention provides a punching device for a copper strip material of an external conductor of a leaky cable, which comprises a punching module, a traction module and a control module, wherein the punching module is shown in figure 1; the control module is in signal connection with the traction module, sends a control signal to the traction module and is used for controlling the traction module to pull the copper strip material to be in the working range of the punching module according to a preset speed; the traction module is used for step-by-step traction of the pulled end of the copper strip material by taking the period pitch P as 250mm as a step length, and the control module is used for sending a control signal containing the traction step number in the time slot to the traction module according to the punching operation time slot.

The punching module comprises 3 punching assemblies which are distributed along the movement direction of the copper strip and are matched with the periodic pitch as shown in FIG. 2; the control module is in signal connection with the punching module, sends a control signal to the punching module and is used for controlling the punching module to enable a preset punching assembly to perform punching operation in a punching operation time slot;

the punching assembly is used for forming all slot holes in one period and comprises an upper die holder, a knife edge male die, a punch fixed on the knife edge male die, a knife edge female die, a lower die holder, a guide rail and a protective template; the upper die base is provided with a knife edge male die which is fixedly connected with one end of the guide rail, and the bottom end of the knife edge male die is provided with a punch; the lower die holder is provided with a knife edge female die which is fixed with the other end of the guide rail; the upper die base is positioned right above the lower die base and moves relatively along a vertically arranged guide rail; a protective template is arranged between the knife edge convex die and the knife edge concave die, and the minimum relative distance between the protective substrate and the knife edge convex die is provided with a first gear and a second gear, so that the punching assembly is respectively in a working state and a standby state;

the protective substrate is provided with a through hole matched with a punch, when the punching assembly is in a working state, the minimum relative distance between the protective substrate and the knife edge convex die is a first gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die penetrates through the protective template and is matched with the knife edge concave die arranged on the lower die holder to complete punching of the copper strip; when the punching assembly is in a standby state, the minimum relative distance between the protective substrate and the knife edge convex die is a second gear, and when the upper template falls down along the guide rail, the punch at the bottom end of the knife edge convex die is shielded by the protective template and does not contact with a copper strip.

Specifically, in the embodiment, the upper die base is matched with the protective template through the spring, so that the punch is positioned above the through hole of the protective template; when the spring is in a natural extension state, the punching assembly is in a standby state, and when the upper die base and the lower die base are tightly pressed along the guide rail, the punch is not in contact with the copper strip; when the spring is in a pressing state, such as external force pressing or fastening, the punching assembly is in a working state, and when the upper die base and the lower die base are pressed along the guide rail, the punch and the copper strip material form a punched hole.

The punching assemblies keep adjacent relation according to the positions of the slotted holes formed by the punching assemblies on the copper strip; the copper strip material is divided into the palindromic structure in sections, namely, the copper strip material is divided into the 1 st section to the 5 th section in sequence according to the type of the periodic slotting, as the positive first section and the negative second section respectively have the same slotted holes as the negative first section and the negative second section, namely, the 1 st section and the 5 th section, and the 2 nd section and the 4 th section are sections matched with the palindromic, the 1 st section and the 5 th section adopt the 1 st punching component to form the periodic slotted holes, the 2 nd section and the 4 th section adopt the 2 nd punching component to form the periodic slotted holes, and the 3 rd section, namely the middle section adopts the low 3 punching component to form the periodic slotted holes. And the more complicated palindromic structure copper strip material is designed in a segmented mode, and so on.

The structural parameters of the broken-point splayed groove adopted by each punching assembly are shown in the following table:

and the 1 st to 3 rd punching assemblies are sequentially away from the pulled end of the copper strip.

The method for punching the strip material of the copper strip of the outer conductor of the leaky cable comprises the following steps of:

the device for punching the copper strip of the outer conductor of the leaky cable provided by the embodiment is applied;

section 1 (forward first section) punch:

the punching module enables the No. 1 punching assembly to be in a working state, and the No. 2 and No. 3 punching assemblies to be in a standby state; in each punching operation time slot, a signal with the control module step number of 1 controls the traction module to step by one pitch of 250mm, the 1 st punching assembly works to form a breakpoint splayed groove with the 1 st group of parameters, and a plurality of punching operation time slots repeatedly complete punching operation until the 1 st section is punched;

slot switching between sector 1 and sector 2:

the 2 nd punching assembly is far away from the pulled end of the copper strip relative to the 1 st punching assembly and is in cis-adjacent, so that the control module sends a control signal containing the pulling step number-1 to the pulling module; the traction module is used for drawing the copper strip material to keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number-1 sent by the control module; the punching module switches the No. 2 punching assembly to be in a working state, and the No. 1 and No. 3 punching assemblies to be in a standby state, and punches the copper strip to complete the first punching operation in the section;

section 2 (forward second section) punch:

the punching module enables the No. 2 punching assembly to be in a working state, and the No. 1 and No. 3 punching assemblies to be in a standby state; in each punching operation time slot, a signal with the control module step number of 1 controls the traction module to step by one pitch of 250mm, the 2 nd punching assembly works to form a breakpoint splayed groove with the 2 nd group of parameters, and a plurality of punching operation time slots repeatedly complete punching operation until the 2 nd section is punched;

slot switching between sections 2 and 3:

the 3 rd punching assembly is far away from the pulled end of the copper strip relative to the 2 nd punching assembly and is in cis-adjacent, so that the control module sends a control signal containing the pulling step number-1 to the pulling module; the traction module is used for drawing the copper strip material to keep still at the beginning of the first punching operation time slot of the section according to a control signal containing the traction step number-1 sent by the control module; the punching module switches the 3 rd punching assembly to be in a working state, and the 1 st punching assembly and the 2 nd punching assembly to be in a standby state, and punches the copper strip to complete the first punching operation in the section;

section 3 (middle section) punching:

the punching module enables the No. 3 punching assembly to be in a working state, and the No. 1 and No. 2 punching assemblies to be in a standby state; in each punching operation time slot, a signal with the control module step number of 1 controls the traction module to step by one pitch of 250mm, the 3 rd punching assembly works to form a breakpoint splayed groove with the 3 rd group of parameters, and a plurality of punching operation time slots repeatedly complete punching operation until the 3 rd section is punched;

slot switching between sections 3 and 4:

the 2 nd punching assembly is close to the pulled end of the copper strip relative to the 3 rd punching assembly and is in reverse adjacency, so that the control module sends a control signal containing the pulling step number +1 to the pulling module; the traction module is used for drawing the copper strip to step forward by 2 pitches by 500mm at the beginning of the first punching operation time slot of the section according to a control signal which contains the traction step number +1 and is sent by the control module; the punching module switches the No. 2 punching assembly to be in a working state, and the No. 1 and No. 3 punching assemblies to be in a standby state, and punches the copper strip to complete the first punching operation in the section;

section 4 (negative second section) punch:

the punching module enables the No. 2 punching assembly to be in a working state, and the No. 1 and No. 3 punching assemblies to be in a standby state; in each punching operation time slot, a signal with the control module step number of 1 controls the traction module to step by one pitch of 250mm, the 2 nd punching assembly works to form a breakpoint splayed groove with the 2 nd group of parameters, and a plurality of punching operation time slots repeatedly complete punching operation until the 4 th section is punched;

slot switching between the 4 th and 5 th sections:

the 1 st punching assembly is close to the pulled end of the copper strip relative to the 2 nd punching assembly and is in reverse adjacency, so that the control module sends a control signal containing the pulling step number +1 to the pulling module; the traction module is used for drawing the copper strip to step forward by 2 pitches by 500mm at the beginning of the first punching operation time slot of the section according to a control signal which contains the traction step number +1 and is sent by the control module; the punching module switches the 1 st punching assembly to be in a working state and the 2 nd and 3 rd punching assemblies to be in a standby state, and punches the copper strip to complete the first punching operation in the section;

section 1 (negative first section) punch:

the punching module enables the No. 1 punching assembly to be in a working state, and the No. 2 and No. 3 punching assemblies to be in a standby state; in each punching operation time slot, a signal with the control module step number of 1 controls the traction module to step by one pitch of 250mm, the 1 st punching assembly works to form a breakpoint splayed groove with the 1 st group of parameters, and a plurality of punching operation time slots repeatedly complete punching operation until the 5 th section is punched;

and at the moment, the belt material punching of the outer conductor copper belt of the leaky cable in the whole laying interval is finished, all parameters of the belt material punching device of the outer conductor copper belt of the leaky cable are restored to the initial positions, and the punching operation of the sections 1 to 5 can be repeated, so that the large-scale production of the belt material of the outer conductor copper belt of the sectionally coupled leaky cable with the palindromic structure is realized in a batch and continuous manner.

It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.