Double-shielded flexible flat control cable manufacturing method

Abstract

The present invention relates to the technical field of cable manufacturing, and in particular to a manufacturing method of a double-shielded flexible flat control cable. The invention comprises a support seat, a frame body is arranged inside a turntable, the frame body is divided into a left cavity and a right cavity by a block, a wire roller is arranged in the right cavity, the wire core on the surface of the wire roller passes through the left cavity and enters a twisting frame for twisting, a limiting groove is arranged at the end of the left cavity, a tension adjustment component is arranged on the inner wall of the limiting groove, and a tension compensation component is arranged in the slide groove, and the tension compensation component is used to limit the transmission of the wire core. The present invention makes the rotating arm horizontal by passing the wire core through a rotating wheel and applying pressure to it. When the wire core on the surface of the wire roller is loose during twisting, the wire core pressure on the rotating wheel is reduced, so that the rotating wheel is rotated by the force of a second elastic member, so that the rotating wheel compensates for the tightness of the loose wire core on the surface of the wire roller, thereby ensuring that the wire core maintains the same tension when passing through the tension adjustment component, and improving the quality of the wire core mixing.

Description

Technical Field

[0001] The invention relates to the technical field of cable manufacturing, in particular to a manufacturing method of a double-shielded flexible flat control cable. Background Art

[0002] Cable processing refers to the processing of copper wire or insulated wire into cable, which usually includes processes such as braiding, twisting, and labeling. Twisting is the process of twisting two or more wires or cables together to form a single wire or cable.

[0003] There are many existing technologies for cable manufacturing devices, such as:

[0004] Chinese patent publication number CN108154974B discloses a cable twisting device, including a frame, a first motor and a second motor, a nailing block is provided on one side of the frame, a turntable is rotatably connected to the side of the frame opposite to the nailing block, a center rod slidably connected to the frame is provided between the nailing block and the turntable, a first gear is rotatably connected to the outer side of the center rod, an elastic member is fixed on the center rod, and grooves are evenly provided on the frame below the elastic member, the first gear is symmetrically provided with a wire hole with the center rod, the first gear is meshed with a second gear located above the first gear, the second gear is fixed on the output shaft of the second motor, the second motor is fixed on the linear motor module provided on the frame, and a button switch electrically connected to the linear motor module is provided in the groove, the nailing block can slide on the frame with the center rod, and the first motor and the second motor rotate synchronously. The invention has a simple structure, and the invention can ensure that the wires are tightly twisted, thereby improving the quality of the cable.

[0005] At present, in order to ensure the quality of cable stranding, the traditional cable manufacturing device needs to adjust the cable tension when in use. However, since there are multiple groups of wire core groups in the cable stranding process, it is time-consuming to adjust each wire core group individually, resulting in low efficiency. Moreover, the wire cores wrapped on the surface of the wire core group have different tightness. When the wire cores pass through the loose parts during stranding, the linear tension adjustment component is not restricted, which makes the wire cores easy to loosen during the twisting process, affecting the quality of the wire core twisting.

[0006] In view of this, we propose a manufacturing method for a double-shielded flexible flat control cable. Summary of the invention

[0007] The object of the present invention is to provide a method for manufacturing a double-shielded flexible flat control cable to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides a method for manufacturing a double-shielded flexible flat control cable, comprising the following steps:

[0009] S1. Select a conductor material with high conductivity and mechanical strength, draw the conductor material, and use a stranding machine to twist and weave it into a conductor;

[0010] S2, using an extruder to extrude the insulating material and wrap it on the surface of the conductor to form an insulating layer;

[0011] S3. According to the diameter and design requirements of the cable, the armor material is armored by an armoring machine. The operator adjusts the speed, tension and armoring angle parameters of the armoring machine to evenly wrap the armor material around the outer layer of the cable, wrap the armor layer with an insulating covering layer, and protect the armor layer with a protective layer;

[0012] The stranding machine comprises a support seat, a stranding frame is provided on the top of the support seat, a motor is provided at one end away from the stranding frame, an output end of the motor is connected to a rotating shaft through a pulley, a turntable is provided on the surface of the rotating shaft, a frame is provided inside the turntable, the frame is arranged in a circular array, the frame is divided into a left cavity and a right cavity by a stopper, and a through groove is provided on the surface of the stopper;

[0013] Wire rollers are provided in the right cavity, and the wire cores on the surface of the wire rollers pass through the left cavity into the twisting frame for twisting. A limiting groove is provided at the end of the left cavity, and a tension adjustment component is provided on the inner wall of the limiting groove. The tension adjustment component is used to uniformly adjust the tension of the wire cores on the surface of the wire rollers so that the wire cores are at the same tension strength when twisting. A symmetrical sliding groove is provided on the side wall of the left cavity, and a tension compensation component is provided in the sliding groove. The tension compensation component is used to limit the transmission of the wire core and compensate for the tightness of the wire core passing through the tension adjustment component.

[0014] As a further improvement of the present technical solution, the tension adjustment assembly includes a movable frame arranged on the inner wall of the limiting groove, the inner wall of the movable frame is provided with a roller, the movable frame slides on the inner wall of the limiting groove, and the tension of the wire core passing through the surface of the roller is adjusted by adjusting the height of the movable frame, a push rod is provided under the movable frame, a column is provided at the bottom of the push rod, the column slides on the surface of the rotating shaft, and the side wall of the column is provided with an inclined groove corresponding to the push rod.

[0015] As a further improvement of the technical solution, a cylinder is provided on the inner wall of the turntable, and a piston rod at the end of the cylinder is connected to the bottom of the column, so that the push rod moves vertically by pushing the column to move horizontally.

[0016] As a further improvement of the present technical solution, a limit assembly is provided above the limit groove, and the limit assembly includes a limit rod passing through the top of the left cavity to the inside of the limit groove, and a first elastic part is provided on the surface of the limit rod, and the two ends of the first elastic part are respectively connected to the top of the limit rod and the top of the left cavity, and the limit rod automatically limits the movable frame through the force of the first elastic part.

[0017] As a further improvement of the technical solution, a thread groove is provided on the surface of the limiting rod, and the limiting rod is stretched to move the thread groove to above the limiting groove and rotate it, so that the thread groove is fixed above the limiting groove.

[0018] As a further improvement of the technical solution, a sliding block is slidably connected to the inner wall of the through groove, a through hole is opened at the center of the sliding block, and a rubber cushion is provided at the through hole.

[0019] As a further improvement of the technical solution, the tension compensation component includes a slider arranged on the inner wall of the slide groove, a swivel arm is provided between the sliders, a rotating wheel is provided at the center of the swivel arm, a second elastic member is provided between the slider and the swivel arm, and in a natural state, the swivel arm is subjected to the force of the second elastic member and forms an angle of 30° with the horizontal plane, and a gear is provided near the end of the swivel arm.

[0020] As a further improvement of the technical solution, a rack is provided at the bottom of the slider. When the wire core on the surface of the wire roller is loose, the rotating wheel rotates under the action of the second elastic member. At the same time, the rotation of the gear drives the rack to move horizontally, causing the slider to slide on the inner wall of the slide groove.

[0021] As a further improvement of the present technical solution, a symmetrical resistance assembly is provided on the inner wall of the slide groove, and the resistance assembly is used to limit the sliding block. The resistance assembly includes a column tube provided on the inner wall of the slide groove, and a sliding column is slidably connected to the inner wall of the column tube. The end of the sliding column is provided on the side wall of the sliding block, and a third elastic member is provided between the column tube and the sliding column.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. In the manufacturing method of the double-shielded flexible flat control cable, the core is passed through the rotating wheel and pressure is applied thereto to make the rotating arm horizontal. When the core strands on the surface of the wire roller are loose, the pressure of the core on the rotating wheel is reduced, so that the rotating wheel is rotated by the force of the second elastic member, and the rotating wheel compensates for the tightness of the loose core on the surface of the wire roller, thereby ensuring that the core maintains the same tension when passing through the tension adjustment component, thereby improving the quality of the core twisting.

[0024] 2. In the manufacturing method of the double-shielded flexible flat control cable, when the cable core moves on the surface of the roller, the sliding column moves on the surface of the rotating shaft, and the column pushes the push rod, so that the moving frame drives the roller to move in the vertical direction, and at the same time, the core tension on the surface of multiple rollers is adjusted, thereby improving the efficiency of adjusting the core tension. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is the overall structural front view of the present invention;

[0027] Figure 3 is a cross-sectional view of a turntable of the present invention;

[0028] Figure 4 It is a schematic diagram of the frame structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the tension adjustment assembly of the present invention;

[0030] Figure 6 For the present invention Figure 5 Schematic diagram of point A;

[0031] Figure 7 It is a schematic diagram of the structure of the tension compensation component of the present invention;

[0032] Figure 8 It is a cross-sectional view of the frame of the present invention.

[0033] The meaning of each number in the figure is:

[0034] 100, support base; 101, wire twisting frame; 102, motor; 103, turntable;

[0035] 200, frame; 201, line roller; 202, sliding block; 203, slide groove; 204, limit groove;

[0036] 300, tension adjustment assembly; 301, moving frame; 302, roller; 303, push rod; 304, column; 305, cylinder; 306, limit assembly; 3061, limit rod; 3062, first elastic member; 3063, thread groove;

[0037] 400, tension compensation component; 401, slider; 402, rotating arm; 403, rotating wheel; 404, second elastic member; 405, gear; 406, resistance component; 4061, column; 4062, sliding column; 4063, third elastic member; 407, rack. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] Cable processing refers to the processing of copper wire or insulated wire into cable, which usually includes braiding, twisting, labeling and other processes. Twisting is to twist two or more wires or cables together to make them into a single wire or a single cable. At present, in order to ensure the quality of cable twisting, the traditional cable manufacturing device needs to adjust the cable tension when it is used. However, since there are multiple groups of core groups in the cable twisting process, it is time-consuming to adjust each core group individually, resulting in low efficiency. Moreover, the cores wound on the surface of the core group have different tightness. When the cores are loose during twisting, they are not restricted when passing through the tension adjustment component, which makes the cores easy to loosen during the twisting process, affecting the twisting quality of the cores.

[0040] The purpose of this embodiment is to provide a method for manufacturing a double-shielded flexible flat control cable. Figure 1-Figure 8 As shown, the method comprises the following steps:

[0041] S1. Select a conductor material with high conductivity and mechanical strength, draw the conductor material, and use a stranding machine to twist and weave it into a conductor;

[0042] S2, using an extruder to extrude the insulating material and wrap it on the surface of the conductor to form an insulating layer;

[0043] S3. According to the diameter and design requirements of the cable, the armor material is armored by an armoring machine. The operator adjusts the speed, tension and armoring angle parameters of the armoring machine to evenly wrap the armor material around the outer layer of the cable, wrap the armor layer with an insulating covering layer, and protect the armor layer with a protective layer;

[0044] The wire twisting machine includes a support base 100, a wire twisting frame 101 is provided on the top of the support base 100, a motor 102 is provided at one end away from the wire twisting frame 101, an output end of the motor 102 is connected to a rotating shaft through a pulley, a rotating disk 103 is provided on the surface of the rotating shaft, a frame 200 is provided inside the rotating disk 103, the frame 200 is arranged in a circular array, and the frame 200 is divided into a left cavity and a right cavity by a block, and a through groove is provided on the surface of the block;

[0045] A wire roller 201 is provided in the right cavity. The wire core on the surface of the wire roller 201 passes through the left cavity and enters the twisting frame 101 for twisting. A limiting groove 204 is provided at the end of the left cavity. A tension adjustment component 300 is provided on the inner wall of the limiting groove 204. The tension adjustment component 300 is used to uniformly adjust the tension of the wire core on the surface of the wire roller 201 so that the wire core is at the same tension strength when twisting. A symmetrical slide groove 203 is provided on the side wall of the left cavity. A tension compensation component 400 is provided in the slide groove 203. The tension compensation component 400 is used to limit the transmission of the wire core and compensate for the tightness of the wire core passing through the tension adjustment component 300.

[0046] By passing the wire core through the rotating wheel 403 and applying pressure to it to make the rotating arm 402 horizontal, when the wire core on the surface of the wire roller 201 is loose, the wire core pressure on the rotating wheel 403 is reduced, so that the rotating wheel 403 is rotated by the force of the second elastic member 404, so that the rotating wheel 403 compensates for the tightness of the loose wire core on the surface of the wire roller 201, thereby ensuring that the wire core maintains the same tension when passing through the tension adjustment component 300, thereby improving the quality of the wire core twisting

[0047] In the process of twisting the cable core, in order to improve the stability and tightness of the core twisted wire, the through groove needs to adjust the tension of multiple cores separately, resulting in low efficiency in adjusting the tension of the core. Therefore, the tension adjustment component 300 includes a moving frame 301 arranged on the inner wall of the limiting groove 204, and the inner wall of the moving frame 301 is provided with a roller 302. The moving frame 301 slides on the inner wall of the limiting groove 204, and the tension of the core passing through the surface of the roller 302 is adjusted by adjusting the height of the moving frame 301. 01 is provided with a push rod 303 below, and a column 304 is provided at the bottom of the push rod 303. The column 304 slides on the surface of the rotating shaft, and the side wall of the column 304 is provided with an inclined groove corresponding to the push rod 303. The cable core moves on the surface of the roller 302. By sliding the column 304 on the surface of the rotating shaft, the column 304 pushes the push rod 303, so that the movable frame 301 drives the roller 302 to move in the vertical direction, and at the same time, the wire core tension on the surface of multiple wire rollers 201 is adjusted, thereby improving the efficiency of adjusting the wire core tension.

[0048] During the stranding process, in order to facilitate the adjustment of the stranding tension state according to the real-time situation, it is necessary to manually push the column 304, which increases the labor intensity of the operators. Therefore, a cylinder 305 is provided on the inner wall of the turntable 103, and the piston rod at the end of the cylinder 305 is connected to the bottom of the column 304. By pushing the column 304 to move horizontally, the push rod 303 moves vertically. When the tension of the cable core needs to be adjusted, the column 304 is pushed by the piston rod at the end of the cylinder 305 to move the column 304 in the horizontal direction. The column 304 is pushed by adjusting the cylinder 305, thereby reducing the labor intensity of the operators.

[0049] When adjusting the cable tension, when the movable frame 301 slides on the inner wall of the limiting groove 204, it is easy to get stuck due to friction, resulting in inaccurate tension adjustment and affecting the quality of the cable core strands. Therefore, a limiting assembly 306 is provided above the limiting groove 204, and the limiting assembly 306 includes a limiting rod 3061 that passes through the top of the left cavity to the inside of the limiting groove 204, and a first elastic member 3062 is provided on the surface of the limiting rod 3061. The two ends of the first elastic member 3062 are respectively connected to the top of the limiting rod 3061 and the top of the left cavity. The limiting rod 3061 automatically limits the movable frame 301 through the force of the first elastic member 3062, and a thread groove 3063 is provided on the surface of the limiting rod 3061. The limiting rod 3061 is stretched to make the thread groove 3063 move to the limiting groove 20 4 and rotated to fix the thread groove 3063 above the limiting groove 204. By passing the limiting rod 3061 through the top of the left cavity to the inside of the limiting groove 204, when adjusting the position of the moving frame 301, by stretching the limiting rod 3061 to the top of the column 304, the limiting rod 3061 is rotated to make the thread groove 3063 clamped on the top of the limiting groove 204, so as to reduce the resistance encountered when adjusting the height of the moving frame 301, thereby improving the adjustment efficiency. When the position adjustment of the moving frame 301 is completed, the limiting rod 3061 is squeezed by the force of the first elastic member 3062, so that the limiting rod 3061 applies pressure to the top of the moving frame 301, so as to avoid the moving frame 301 from getting stuck when sliding on the inner wall of the limiting groove 204, thereby improving the accuracy of cable tension adjustment.

[0050] When the surface of the wire roller 201 is subjected to traction and moves, the wire core rubs against its surface when passing through the through groove, which can easily cause damage to the wire core and affect the quality of the cable stranding. Therefore, a sliding block 202 is provided in a sliding connection with the inner wall of the through groove, and a through hole is provided at the center of the sliding block 202. A rubber pad is provided at the through hole. By providing a through hole at the center of the sliding block 202, the linear wire fits with the rubber pad at the through hole when passing through the sliding block 202, thereby reducing the friction between the wire core and the through groove when moving, thereby improving the quality of the stranding.

[0051] Considering that the wire core on the surface of the wire roller 201 has different tightness, it is easy to cause the stranded wire to loosen during the stranding process, affecting the quality of the stranded wire. Therefore, the tension compensation component 400 includes a slider 401 arranged on the inner wall of the slide groove 203, a rotating arm 402 is arranged between the sliders 401, a rotating wheel 403 is arranged at the center of the rotating arm 402, and a second elastic member 404 is arranged between the slider 401 and the rotating arm 402. In the natural state, the rotating arm 402 is inclined at 30° to the horizontal plane by the force of the second elastic member 404. Angle, a gear 405 is provided near the end of the rotating arm 402, and the rotating arm 402 is horizontal by passing the wire core through the rotating wheel 403 and applying pressure thereto. When the wire core on the surface of the wire roller 201 is loose during twisting, the wire core pressure on the rotating wheel 403 is reduced, so that the rotating wheel 403 is rotated by the force of the second elastic member 404, and the rotating wheel 403 compensates for the tightness of the loose wire core, thereby ensuring that the wire core maintains the same tension when passing through the tension adjustment component 300, thereby improving the quality of the twisted wire.

[0052] Taking into account that when the wire core is loose, the pressure on the surface of the rotating wheel 403 disappears, thereby driving the rotating wheel 403 to rotate under the force of the second elastic member 404. Due to the existence of inertia, it is easy for the rotating wheel 403 to stretch the wire core during the resetting process, causing the wire core to deform. Therefore, a rack 407 is provided at the bottom of the slider 401. When the wire core on the surface of the wire roller 201 is loose, the rotating wheel 403 is rotated by the force of the second elastic member 404. At the same time, the gear 405 rotates to drive the rack 407 to move horizontally, so that the slider 401 slides on the inner wall of the slide groove 203. When the wire core is loose, the rotating wheel 403 is rotated by the restoring force of the second elastic member 404, thereby driving the gear 405 to rotate. During the rotation of the gear 405, the rack 407 provided below is meshed and pushed, so that the rack 407 drives the slider 401 to move horizontally, thereby realizing that the rotating wheel 403 can infinitely adjust the tightness of the loose wire core during transmission, thereby ensuring the twisted wire quality of the wire core.

[0053] When the slider 401 slides on the inner wall of the slide groove 203, in order to make the tension compensation component 400 stable after compensating for the loose cable, a symmetrical resistance component 406 is provided on the inner wall of the slide groove 203. The resistance component 406 is used to limit the slider 401. The resistance component 406 includes a cylinder 4061 arranged on the inner wall of the slide groove 203. The inner wall of the cylinder 4061 is slidably connected with a slide column 4062. The end of the slide column 4062 is arranged on the side wall of the slider 401. A third elastic member 4063 is provided between the cylinder 4061 and the slide column 4062. When the rotating wheel 403 rotates, it drives the slider 401 to move. When the slider 401 moves to the compensation position, the slide column 4062 slides on the inner wall of the cylinder 4061 under the force of the third elastic member 4063, and at the same time limits the position of the slider 401, thereby improving the stability of the tension compensation component 400 when compensating for the wire core.

[0054] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for manufacturing a double-shielded flexible flat control cable, characterized in that: The method comprises the following steps: S1. Select conductor materials, draw the conductor materials, and use a stranding machine to twist and weave them into conductors; S2, using an extruder to extrude the insulating material and wrap it on the surface of the conductor to form an insulating layer; S3. According to the diameter and design requirements of the cable, the armor material is armored by an armoring machine. The operator adjusts the speed, tension and armoring angle parameters of the armoring machine to evenly wrap the armor material around the outer layer of the cable, wrap the armor layer with an insulating covering layer, and protect the armor layer with a protective layer; The wire twisting machine comprises a support base (100), a wire twisting frame (101) is provided on the top of the support base (100), a motor (102) is provided at one end away from the wire twisting frame (101), an output end of the motor (102) is connected to a rotating shaft via a pulley, a rotating disk (103) is provided on the surface of the rotating shaft, a frame (200) is provided inside the rotating disk (103), and the frame (200) is arranged in a ring array; The frame (200) is divided into a left cavity and a right cavity by a stopper, a through groove is provided on the surface of the stopper, a wire roller (201) is provided in the right cavity, the wire core on the surface of the wire roller (201) passes through the left cavity and enters the wire twisting frame (101) for twisting, a limiting groove (204) is provided at the end of the left cavity, a tension adjustment component (300) is provided on the inner wall of the limiting groove (204), the tension adjustment component (300) is used to uniformly adjust the tension of the wire core on the surface of the wire roller (201) so that the wire core is at the same tension strength when twisting, a symmetrical slide groove (203) is provided on the side wall of the left cavity, a tension compensation component (400) is provided in the slide groove (203), the tension compensation component (400) is used to limit the transmission of the wire core and compensate for the tightness of the wire core passing through the tension adjustment component (300); The tension adjustment component (300) comprises a movable frame (301) arranged on the inner wall of the limiting groove (204); a roller (302) is arranged on the inner wall of the movable frame (301); the movable frame (301) slides on the inner wall of the limiting groove (204); the tension of the wire core passing through the surface of the roller (302) is adjusted by adjusting the height of the movable frame (301); a push rod (303) is arranged below the movable frame (301); a column (304) is arranged at the bottom of the push rod (303); the column (304) slides on the surface of the rotating shaft; and a side wall of the column (304) is provided with an oblique groove corresponding to the push rod (303); The tension compensation component (400) comprises a slider (401) arranged on the inner wall of the slide groove (203), a rotating arm (402) is arranged between the sliders (401), a rotating wheel (403) is arranged at the center of the rotating arm (402), a second elastic member (404) is arranged between the slider (401) and the rotating arm (402), and in a natural state, the rotating arm (402) is subjected to the force of the second elastic member (404) and forms an oblique angle of 30° with the horizontal plane, and a gear (405) is arranged near the end of the rotating arm (402); A rack (407) is provided at the bottom of the slider (401), and when the wire core on the surface of the wire roller (201) is loose, the rotating wheel (403) is rotated by the force of the second elastic member (404), and at the same time, the gear (405) rotates to drive the rack (407) to move horizontally, so that the slider (401) slides on the inner wall of the slide groove (203); A symmetrical resistance component (406) is provided on the inner wall of the slide groove (203), and the resistance component (406) is used to limit the position of the slider (401). The resistance component (406) includes a column (4061) provided on the inner wall of the slide groove (203), and a sliding column (4062) is slidably connected to the inner wall of the column (4061), and the end of the sliding column (4062) is provided on the side wall of the slider (401), and a third elastic member (4063) is provided between the column (4061) and the sliding column (4062).

2. The method for manufacturing a double-shielded flexible flat control cable according to claim 1, characterized in that: The inner wall of the turntable (103) is provided with a cylinder (305), and a piston rod at the end of the cylinder (305) is connected to the bottom of the platform column (304), and the push rod (303) moves vertically by pushing the platform column (304) to move horizontally.

3. The method for manufacturing a double-shielded flexible flat control cable according to claim 1, characterized in that: A limiting assembly (306) is provided above the limiting groove (204), and the limiting assembly (306) comprises a limiting rod penetrating from the top of the left cavity to the inside of the limiting groove, and a first elastic member is provided on the surface of the limiting rod, and two ends of the first elastic member are respectively connected to the top of the limiting rod and the top of the left cavity, and the limiting rod automatically limits the movable frame through the action force of the first elastic member.

4. The method for manufacturing a double-shielded flexible flat control cable according to claim 3, characterized in that: A thread groove is provided on the surface of the limiting rod. The limiting rod is stretched to move the thread groove to above the limiting groove and rotate it so that the thread groove is fixed above the limiting groove.

5. The method for manufacturing a double-shielded flexible flat control cable according to claim 1, characterized in that: A sliding block (202) is slidably connected to the inner wall of the through groove, a through hole is provided at the center of the sliding block (202), and a rubber cushion is provided in the through hole.

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