Signal line cutting device

Abstract

The present invention discloses a signal line cutting device, comprising: an operation table, on which a cutting mechanism and a wire pulling mechanism are provided, a multi-axis wire feeding mechanism is provided at one end of the operation table, and a plurality of wire spool assemblies are provided below the operation table; the direction from one end of the operation table to the other end of the operation table is the first direction, and the multi-axis wire feeding mechanism feeds out wires along the first direction; the cutting mechanism includes: a wire clamp module platform and a cutting component, the wire clamp module platform includes a first wire clamp storage seat and a second wire clamp storage seat arranged side by side in sequence along the first direction, the first wire clamp storage seat and the second wire clamp storage seat are respectively used for placing a wire clamp, the wire clamp can clamp a plurality of signal lines at the same time, and the cutting component is arranged between the two wire clamp storage seats; the wire pulling mechanism includes a jaw slide and a jaw component, the jaw component is arranged on the jaw slide and is used for clamping the wire clamp, one end of the slide is located at the cutting mechanism, and the other end of the slide extends to the other end of the operation table. The tangent efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of signal line processing, and more specifically, to a signal line cutting device. Background Art

[0002] In the field of signal line processing, the existing solutions are all to use a computer cutting and stripping machine to strip the two ends of such signal lines one by one or in pairs, and then manually place them into a fixture for fixing and then weld them to the PCB board, or directly weld a single signal line to the PCB board, which is time-consuming and results in low processing efficiency of the signal line.

[0003] Moreover, after the existing computer wire cutting machine cuts the wires, the core wires are relatively easy to get messy, and the cut wires need to be manually placed into the fixture one by one or directly welded. The manual operation component is too much and the operation is cumbersome, and the processing quality is unstable. Summary of the Invention

[0004] The object of the present invention is to provide a signal line cutting device, which can realize multi-line simultaneous wire feeding, reduce manual operation, thereby reducing the relative position change between the core wire and the ground wire, improving the signal stability after cutting, and improving the processing efficiency of the wire cutting and subsequent welding processes.

[0005] To achieve the above object, the present invention provides a signal line cutting device, including:

[0006] An operation table, on which a cutting mechanism and a wire pulling mechanism are provided. A multi-axis wire feeding mechanism is provided at one end of the operation table, and a plurality of wire spool assemblies are provided below the operation table;

[0007] The direction from one end of the operation table to the other end of the operation table is the first direction, and the multi-axis wire feeding mechanism feeds out wires along the first direction;

[0008] The cutting mechanism includes: a wire clip module platform and a cutting component. The wire clip module platform includes a first wire clip holding seat and a second wire clip holding seat arranged side by side in sequence along the first direction. The first wire clip holding seat and the second wire clip holding seat are respectively used for placing a wire clip, and the wire clip can simultaneously hold a plurality of the signal lines. The cutting component is arranged between the two wire clip holding seats;

[0009] The wire pulling mechanism includes a jaw slide and a jaw assembly. The jaw assembly is arranged on the jaw slide and is used for clamping the wire clip. One end of the slide is located at the cutting mechanism, and the other end of the slide extends to the other end of the operation table.

[0010] Optionally, the wire clamp module platform further includes two horizontally arranged sliding rails which are parallel to each other and perpendicular to the first direction. Each of the horizontally arranged sliding rails is provided with a lifting component, and the first wire clamp storage seat and the second wire clamp storage seat are respectively arranged at the top of one of the lifting components.

[0011] Optionally, the multi-axis wire paying-off mechanism includes a vertical bracket. A first multi-groove shaft is provided at the bottom of the vertical bracket, and a second multi-groove shaft is provided at the top of the vertical bracket. The axial directions of the first multi-groove shaft and the second multi-groove shaft are perpendicular to the first direction.

[0012] Optionally, the spool assembly includes a spool bracket. A spool is respectively provided at both ends of the spool bracket. The axial direction of the spool is perpendicular to the first direction. Two wire paying-off motors are provided on the spool bracket, and each wire paying-off motor is connected to a spool through a pulley.

[0013] Optionally, the cutting station further includes a tension straightening mechanism which is located between the multi-axis wire paying-off mechanism and the wire clamp module platform;

[0014] The tension straightening mechanism includes a base. A plurality of mutually parallel rollers are provided at the top of the base. The axial direction of the rollers is perpendicular to the first direction. A straightening motor is provided on one side of the base, and the straightening motor is connected to the plurality of rollers through a gear set.

[0015] Optionally, the wire clamp includes a bottom plate and a clamping plate. One end of the clamping plate is hinged to one end of the bottom plate. A protrusion is provided at the other end of the clamping plate, and a locking groove cooperating with the protrusion is provided at the other end of the bottom plate. A locking lever is provided on one side of the locking groove, and the locking lever includes a wrench and a rotating locking tongue.

[0016] Optionally, the cutting mechanism further includes a cantilever bracket arranged on one side of the wire clamp module platform. Two clamping cylinders are arranged on the cantilever bracket along the vertical direction, and the bottom end of the piston rod of each clamping cylinder faces the wrench of the locking lever on one wire clamp.

[0017] Optionally, the cutting mechanism further includes a long and short wire processing mechanism which includes: a downward pressing idler wheel assembly and a downward pressing execution mechanism;

[0018] The downward pressing idler wheel assembly is fixedly connected to the second wire clamp storage seat and is located on the side of the second wire clamp storage seat away from the first wire clamp storage seat;

[0019] The downward pressing execution mechanism is located on the cantilever bracket and is directly above the downward pressing idler wheel assembly.

[0020] Optionally, the lower pressing and supporting wheel assembly includes a base, and two third multi-grooved shafts parallel to each other are provided on the top of the base, and the axial direction of the third multi-grooved shaft is perpendicular to the first direction;

[0021] The lower pressing actuator includes a lower pressing cylinder arranged in the vertical direction, a pressing plate is provided at the bottom of the lower pressing cylinder, the pressing plate is arranged in the vertical direction and its surface is perpendicular to the first direction, the bottom of the pressing plate is an inclined surface, and the projection of the pressing plate on the horizontal plane is located in the middle of the projections of the two third multi-grooved shafts on the horizontal plane.

[0022] Optionally, it further includes an electrical control box, and the electrical control box is arranged at the other end of the operation table.

[0023] The beneficial effects of the present invention are as follows:

[0024] By directly outputting multi-axis signal lines from the spool with a multi-axis wire pay-off machine, the wire clamps can be fed through the wire clamp module platform, and multiple signal lines can be quickly clamped simultaneously. After the first wire pulling is completed, other wire clamps are quickly clamped after the signal lines are pulled to the required length, and are quickly cut by the cutting assembly. After a group of wires is completed, the first clamp for the next wire is installed again, effectively improving the cutting efficiency and facilitating subsequent processing techniques.

[0025] Furthermore, during the rapid clamping and wire pulling process, the long and short wire processing mechanism can enable the multiple signal lines after cutting to have different lengths, meeting the requirements of different long and short specifications.

[0026] The device of the present invention has other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent specific embodiments, or will be described in detail in the accompanying drawings incorporated herein and the subsequent specific embodiments. These accompanying drawings and specific embodiments are jointly used to explain the specific principles of the present invention. Description of the Drawings

[0027] By describing the exemplary embodiments of the present invention in more detail in conjunction with the accompanying drawings, the above-mentioned and other objects, features, and advantages of the present invention will become more obvious. In the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0028] Figure 1 The overall front view of a signal line cutting device according to an embodiment of the present invention is shown.

[0029] Figure 2 The overall front elevation view of a signal line cutting device according to an embodiment of the present invention is shown.

[0030] Figure 3 The front view of the cutting mechanism in a signal line cutting device according to an embodiment of the present invention is shown.

[0031] Figure 4 Shows a partial structural schematic diagram of a wire clamp module platform in a signal wire cutting device according to an embodiment of the present invention.

[0032] Figure 5 Shows a schematic diagram of the cooperation between a wire clamp module platform and a cutting component in a signal wire cutting device according to an embodiment of the present invention.

[0033] Figure 6 Shows a structural schematic diagram of a cutting component in a signal wire cutting device according to an embodiment of the present invention.

[0034] Figure 7 Shows a structural schematic diagram of a jaw component in a signal wire cutting device according to an embodiment of the present invention.

[0035] Figure 8 Shows a structural schematic diagram of a jaw slide in a signal wire cutting device according to an embodiment of the present invention.

[0036] Figure 9 Shows a structural schematic diagram of a wire spool component in a signal wire cutting device according to an embodiment of the present invention.

[0037] Figure 10 Shows a structural schematic diagram of a wire clamp in a signal wire cutting device according to an embodiment of the present invention.

[0038] Figure 11 Shows a structural schematic diagram of a lower pressing idler wheel component in a signal wire cutting device according to an embodiment of the present invention.

[0039] Figure 12 Shows a structural schematic diagram of a lower pressing actuator in a signal wire cutting device according to an embodiment of the present invention.

[0040] Description of reference numerals:

[0041] 1 - Operating table, 2 - Cutting mechanism, 3 - Wire pulling mechanism, 4 - Multi - axis wire feeding mechanism, 5 - Wire clamp module platform, 6 - Claw assembly, 7 - Claw slide, 8 - Horizontal slide rail, 9 - Lifting assembly, 10 - First wire clamp storage seat, 11 - Second wire clamp storage seat, 12 - Vertical bracket, 13 - First multi - groove shaft, 14 - Second multi - groove shaft, 15 - Spool assembly, 16 - Wire feeding motor, 17 - Tension straightening mechanism, 18 - Roller, 19 - Straightening motor, 20 - Wire clamp, 21 - Base plate, 22 - Clamping plate, 23 - Protrusion, 24 - Lock groove, 25 - Wrench, 26 - Rotating locking tongue, 27 - Cantilever bracket, 28 - Locking clamp cylinder, 29 - Lower pressing idler wheel assembly, 30 - Third multi - groove shaft, 31 - Lower pressing execution mechanism, 32 - Lower pressing cylinder, 33 - Pressure plate, 34 - Electrical control box, 35 - Cutting component, 36 - Blade cylinder, 37 - Blade. Detailed implementation mode

[0042] The present invention will be described in more detail with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0043] Figure 1 The overall front view of a signal wire cutting device according to an embodiment of the present invention is shown. Figure 2 The overall front elevation view of a signal wire cutting device according to an embodiment of the present invention is shown.

[0044] As Figure 1 and Figure 2 shown, a signal wire cutting device includes:

[0045] An operating table 1, on which a cutting mechanism 2 and a wire pulling mechanism 3 are provided. At one end of the operating table 1, a multi - axis wire feeding mechanism 4 is provided, and a plurality of spool assemblies 15 are provided below the operating table 1. The direction from one end of the operating table 1 to the other end of the operating table 1 is the first direction, and the multi - axis wire feeding mechanism 4 feeds out wires along the first direction.

[0046] Refer to Figure 3 , the cutting mechanism 2 includes: a wire clamp module platform 5 and a cutting component 35. The wire clamp module platform 5 includes a first wire clamp storage seat 10 and a second wire clamp storage seat 11 arranged side by side in sequence along the first direction. The first wire clamp storage seat 10 and the second wire clamp storage seat 11 are respectively used to place a wire clamp 20, and the wire clamp 20 can clamp multiple signal wires simultaneously.

[0047] Refer to Figure 5 ,the cutting component 35 is arranged between the two wire clamp storage seats; the structure of the cutting component 35 is as Figure 6As shown. The cutting assembly 35 includes a base and a blade assembly. The blade assembly can slide horizontally on the base. The top of the blade assembly has a horizontal cutting edge, and a blade 37 is provided in the horizontal cutting edge. A blade cylinder 36 is provided on one side of the cutting knife assembly. The blade cylinder 36 can drive the blade to move up and down to cut the cable in the horizontal cutting edge.

[0048] Reference Figure 3 、 Figure 7 and Figure 8 , the wire pulling mechanism 3 includes a jaw slide 7 and a jaw assembly 6. The jaw assembly 6 is arranged on the jaw slide 7 and is used to clamp the wire clamp. One end of the slide is located at the cutting mechanism 2, and the other end of the slide extends to the other end of the operating table 1. The jaw assembly 6 includes a clip at the front end and a driving cylinder at the rear end. The driving cylinder is used to drive the jaws to perform the clamping action. The jaw slide 7 is an existing linear slide device.

[0049] Reference Figure 3 and Figure 4 , in this embodiment, the wire clamp module platform 5 further includes two horizontally arranged slide rails 8 which are perpendicular to the first direction. Each slide rail 8 is provided with a lifting assembly 9. The first wire clamp holding seat 10 and the second wire clamp holding seat 11 are respectively arranged on the top of a lifting assembly 9. The lifting assembly 9 can be a slide rail or a cylinder.

[0050] Reference Figure 2 , in this embodiment, the multi-axis wire paying-off mechanism 4 includes a vertical bracket 12. A first multi-groove shaft 13 is provided at the bottom of the vertical bracket 12, and a second multi-groove shaft 14 is arranged at the top of the vertical bracket 12. The axial directions of the first multi-groove shaft 13 and the second multi-groove shaft 14 are perpendicular to the first direction.

[0051] Reference Figure 9 , in this embodiment, the spool assembly 15 includes a spool bracket. A spool is respectively provided at both ends of the spool bracket. The axial direction of the spool is perpendicular to the first direction. Two wire paying-off motors 16 are provided on the spool bracket. Each wire paying-off motor 16 is connected to a spool through a pulley.

[0052] Reference Figure 3 , in this embodiment, the cutting station further includes a tension straightening mechanism 17. The tension straightening mechanism 17 is located between the multi-axis wire paying-off mechanism 4 and the wire clamp module platform 5;

[0053] The tension straightening mechanism 17 includes a base. A plurality of mutually parallel rollers 18 are arranged on the top of the base. The axial direction of the rollers 18 is perpendicular to the first direction. A straightening motor 19 is provided on one side of the base. The straightening motor 19 is connected to the plurality of rollers 18 through a gear set. The signal wire can wind around the plurality of rollers 18, and the signal wire can be straightened by the straightening motor 19.

[0054] Reference Figure 10, in this embodiment, the wire clamp 20 includes a bottom plate and a clamping plate 22. One end of the clamping plate 22 is hinged to one end of the clamping plate 22. A protrusion 23 is provided at the other end of the clamping plate 22, and a locking groove 24 cooperating with the protrusion 23 is provided at the other end of the bottom plate. A locking lever is provided on one side of the locking groove 24. The locking lever includes a wrench 25 and a rotating locking tongue 26.

[0055] Reference Figure 3 , in this embodiment, the cutting mechanism 2 further includes a cantilever bracket 27 provided on one side of the wire clamp module platform 5. Two locking clamp cylinders 28 are vertically arranged on the cantilever bracket 27. The bottom end of the piston rod of each locking clamp cylinder 28 faces the wrench 25 of an upper locking lever of a wire clamp.

[0056] Reference Figure 3 , in this embodiment, the cutting mechanism 2 further includes a long and short wire processing mechanism. The long and short wire processing mechanism includes: a downward pressing idler wheel assembly 29 and a downward pressing execution mechanism 31;

[0057] Reference Figure 5 The downward pressing idler wheel assembly 29 is fixedly connected to the second wire clamp storage seat 11 and is located on the side of the second wire clamp storage seat 11 away from the first wire clamp storage seat 10;

[0058] The downward pressing execution mechanism 31 is located on the cantilever bracket 27 and is directly above the downward pressing idler wheel assembly 29.

[0059] Reference Figure 11 , in this embodiment, the downward pressing idler wheel assembly 29 includes a base. Two third multi-grooved shafts 30 parallel to each other are provided on the top of the base. The axial direction of the third multi-grooved shaft 30 is perpendicular to the first direction;

[0060] Reference Figure 12 , the downward pressing execution mechanism 31 includes a downward pressing cylinder 32 arranged vertically. A pressing plate 33 is provided at the bottom of the downward pressing cylinder 32. The pressing plate 33 is arranged vertically and its surface is perpendicular to the first direction. The bottom of the pressing plate 33 is an inclined surface. The projection of the pressing plate 33 on the horizontal plane is located between the projections of the two third multi-grooved shafts 30 on the horizontal plane. Multiple wire grooves are provided on the inclined surface at the bottom of the pressing plate 33.

[0061] Reference Figure 1 and Figure 2 , in this embodiment, it further includes an electrical control box 34. The electrical control box 34 is arranged at the other end of the operating table 1. The electrical control box 34 is electrically connected to the wire paying-off motor 16 of each wire spool assembly 15, the jaw assembly 6, the jaw slide 7, the cutting assembly 35, the straightening motor 19 of the tension straightening mechanism 17, the locking clamp cylinder 28, and the downward pressing cylinder 32. The electrical control box 34 can adopt an existing PLC controller to achieve automatic control.

[0062] The working process of the signal wire cutting device of the present invention is as follows:

[0063] 1. After multiple signal lines come out from multiple spool assemblies 15, they pass through the first multi-groove shaft 13 and the second multi-groove shaft 14 of the multi-axis wire pay-off mechanism 4, come out on the winding operation platform, and then come out to the station of the cutting mechanism 2 after passing through the tension straightening mechanism 17.

[0064] 2. The wire pulling and cutting process includes:

[0065] (1) First wire pulling: Place a wire clamp a on the first wire clamp holding seat 10 of the wire clamp module platform 5, push the wire clamp a along the transverse slide rail 8 under the multiple signal lines, then lift it up to the position under the multiple signal lines through the lifting mechanism, manually lower the pressure plate 33 of the wire clamp a to buckle with the bottom plate, so that the protrusion 23 on the pressure plate 33 enters the locking groove 24 of the bottom plate. Then, control the locking clamp cylinder 28 above the first wire clamp holding seat 10 to press down the wrench 25 of the upper locking of the wire clamp a, so that the rotating locking tongue 26 locks the protrusion 23. At this time, the wire clamp a completes the clamping of the heads of the multiple signal lines; control the jaw assembly 6 to grab the wire clamp a, then slide and pull the wire on the jaw slide 7. While pulling the wire, control the pay-off motors 16 on the multiple spool assemblies 15 to pay off wire synchronously. After pulling the wire to the preset length, control the jaw assembly 6 to stop sliding;

[0066] (2) Clamp replacement: Lower the first wire clamp holding seat 10 and withdraw it from under the signal lines to the starting position. Then, place wire clamps b and c on the first wire clamp holding seat 10 and the second wire clamp holding seat 11 respectively. Slide wire clamps b and c simultaneously through the wire clamp module platform 5 inward under the multiple signal lines, lift wire clamps b and c up, and then the two locking clamp cylinders 28 above press down to fasten wire clamps b and c, and wire clamps b and c clamp the multiple signal lines simultaneously;

[0067] (3) Cutting: Control the cutting component 35 to act. The blade assembly slides in from the side towards the signal lines, so that the multiple signal lines enter the transverse cutting edge. Control the blade cylinder 36 to act, drive the blade 37 to move upward to cut the multiple signal lines between wire clamps b and c simultaneously, and complete the cutting. At this time, both ends of the multiple signal lines cut for the first time are clamped by a wire clamp a and a wire clamp c respectively. Then, take away the cut signal lines for subsequent processes.

[0068] (4) Second wire pulling: The jaw assembly 6 retracts to the starting position of the cutting mechanism 2 station, control the blade assembly of the cutting component 35 to reset, then grab the wire clamp b and pull the wire again to the preset length, withdraw the first wire clamp holding seat 10 and the second wire clamp holding seat 11 to the starting position, and cycle steps (2) and (3).

[0069] 3. When there are different length requirements for the cut signal lines, during the wire pulling process, the pressing actuator 31 can be pressed downward to press the signal line into the downward pressing idler wheel assembly 29. Due to the inclined plane on the bottom surface of the pressing plate 33 of the pressing actuator 31, after the wire pulling is completed, the signal lines at different positions can have different lengths, and signal lines with different length specifications can be achieved.

[0070] In summary, in the present invention, the spool directly outputs multiple-axis signal lines through a multi-axis wire pay-off machine. The wire clamp module platform can send the signal lines into the wire clamps, and multiple signal lines can be quickly clamped simultaneously. After the first wire pulling is completed, other wire clamps are quickly clamped after the signal line is pulled to the required length, and are quickly cut by the cutting assembly. When one group of wires is completed, the first clamp for the next wire is already installed, effectively improving the cutting efficiency. Moreover, this multi-line simultaneous wire pay-off does not require manual pulling and swinging, reducing the relative position change between the core wire and the ground wire, and the signal stability is not damaged. Pulling multiple wires at one time also improves the efficiency. The installed wire clamps can be docked with the subsequent automatic wire processing platform, facilitating subsequent processes such as welding. At the same time, it can also meet the requirements for cutting signal lines of different lengths.

[0071] The embodiments of the present invention have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A signal line cutting device, characterized in that, Including: An operating table, on which a cutting mechanism and a wire pulling mechanism are provided. At one end of the operating table, a multi-axis wire feeding mechanism is provided, and below the operating table, a plurality of spool assemblies are provided; The direction from one end of the operating table to the other end of the operating table is the first direction, and the multi-axis wire feeding mechanism feeds out wire along the first direction; The cutting mechanism includes: a wire clamp module platform and a cutting component. The wire clamp module platform includes a first wire clamp holding seat and a second wire clamp holding seat arranged side by side in sequence along the first direction. The first wire clamp holding seat and the second wire clamp holding seat are respectively used for placing a wire clamp, and the wire clamp can clamp a plurality of the signal wires at the same time. The cutting component is arranged between the two wire clamp holding seats; The wire pulling mechanism includes a jaw slide and a jaw component. The jaw component is arranged on the jaw slide and is used for clamping the wire clamp. One end of the slide is located at the cutting mechanism, and the other end of the slide extends to the other end of the operating table; The wire clamp includes a bottom plate and a clamping plate. One end of the clamping plate is hinged to one end of the bottom plate. A protrusion is provided at the other end of the clamping plate, and a locking groove cooperating with the protrusion is provided at the other end of the bottom plate. A locking lever is provided on one side of the locking groove. The locking lever includes a wrench and a rotating locking tongue; The cutting mechanism further includes a cantilever bracket arranged on one side of the wire clamp module platform. Two locking cylinder are arranged on the cantilever bracket along the vertical direction. The bottom end of the piston rod of each locking cylinder faces the wrench of the locking lever on one wire clamp; It further includes an electrical control box, and the electrical control box is arranged at the other end of the operating table.

2. The signal line cutting device according to claim 1, wherein The wire clamp module platform further includes two horizontally arranged rails parallel to each other. The horizontally arranged rails are perpendicular to the first direction. An elevating component is provided on each horizontally arranged rail. The first wire clamp holding seat and the second wire clamp holding seat are respectively arranged on the top of one elevating component; 3. The signal line cutting device according to claim 1, wherein The multi-axis wire feeding mechanism includes a vertical bracket. A first multi-groove shaft is provided at the bottom of the vertical bracket, and a second multi-groove shaft is provided at the top of the vertical bracket. The axial directions of the first multi-groove shaft and the second multi-groove shaft are perpendicular to the first direction; 4. The signal line cutting device according to claim 1, characterized in that, The spool assembly includes a spool bracket. A spool is respectively provided at both ends of the spool bracket. The axial direction of the spool is perpendicular to the first direction. Two wire feeding motors are provided on the spool bracket. Each wire feeding motor is connected to a spool through a pulley; 5. The signal line cutting device according to claim 1, wherein The cutting mechanism further includes a tension straightening mechanism, and the tension straightening mechanism is located between the multi-axis wire feeding mechanism and the wire clamp module platform; The tension straightening mechanism includes a base. A plurality of rollers parallel to each other are provided on the top of the base. The axial direction of the rollers is perpendicular to the first direction. A straightening motor is provided on one side of the base. The straightening motor is connected to the plurality of rollers through a gear set; 6. The signal line cutting device according to claim 1, characterized in that, The cutting mechanism further includes a long and short wire processing mechanism. The long and short wire processing mechanism includes: a pressing support wheel assembly and a pressing execution mechanism; The pressing support wheel assembly is fixedly connected to the second wire clamp holding seat and is located on the side of the second wire clamp holding seat away from the first wire clamp holding seat; The downward pressing actuator is located on the cantilever bracket and directly above the downward pressing idler wheel assembly.

7. The signal line cutting device according to claim 6, characterized in that The downward pressing idler wheel assembly includes a base, and two third multi-grooved shafts parallel to each other are provided on the top of the base. The axial direction of the third multi-grooved shaft is perpendicular to the first direction. The downward pressing actuator includes a downward pressing cylinder arranged in the vertical direction. A pressing plate is provided at the bottom of the downward pressing cylinder. The pressing plate is arranged in the vertical direction and its surface is perpendicular to the first direction. The bottom of the pressing plate is an inclined surface, and the projection of the pressing plate on the horizontal plane is located in the middle of the projections of the two third multi-grooved shafts on the horizontal plane.

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