Flat cable traction auxiliary device and use method

Abstract

The invention discloses a flat cable traction auxiliary device and a using method.The flat cable traction auxiliary device comprises a traction conveying belt and a pressing conveying belt which are attached to each other, traction grooves are formed in the traction conveying belt, and the traction grooves are connected end to end; the traction groove is in a ring shape along the circumference of the traction conveying belt; the flexible flat cable enters the traction groove in the state that the flat face is parallel to the side wall of the traction groove, and the depth of the traction groove is not smaller than the width of the flat face of the flexible flat cable. According to the flat cable traction auxiliary device and the use method provided by the invention, when the flexible flat cable is pulled, the stress direction is periodically changed, so that the friction force borne by the flexible flat cable is dispersed, and the situation that the flexible flat cable is damaged due to the fact that the stress borne by the flexible flat cable is too concentrated is avoided. And the insulating layer of the flexible flat cable is prevented from being excessively stretched or damaged.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable processing, and more specifically, relates to a flat cable traction assisting device and a using method thereof. Background Art

[0002] Flexible flat cables are widely used in theaters, stadiums, stages, KTVs, and art performance venues. The preparation of flexible cables requires processing steps such as raw material preparation, conductor manufacturing, insulation layer addition, cable filling, sheath forming, and cable testing.

[0003] In the sheath forming process, a special traction device is generally used to traction the formed flexible flat cable. The flexible flat cable has two flat surfaces. The traction device usually squeezes the two flat surfaces together through two mutually attached flexible traction belts to clamp the flexible flat cable. When the two traction belts rotate, they traction the flexible flat cable through friction.

[0004] However, the existing traction devices have the following deficiencies: ① The traction belt is usually guided and driven by multiple rollers. Since the traction belt is flexible, the pressure of the rollers on the traction belt cannot be evenly transmitted to every part of the traction belt. The pressure on the traction belt near the rollers is relatively concentrated, so that the friction force on the cable is concentrated near the rollers. This makes the friction force on the cable uneven during traction, and it is easy to cause the cable insulation layer to be overstretched or damaged; ② Since the traction belt is usually guided by multiple rollers, it is difficult to make the pressure of multiple rollers guiding the traction belt completely uniform. This makes the friction force on the cable too large when passing near some rollers, and it is easy to cause the cable insulation layer to be overstretched or damaged; ③ The cross-section of the flexible flat cable is relatively wide. Compared with the round cable, its surface area is larger, and it is more likely to be squeezed or stretched by the external environment during traction. Especially at the edge part of the cable, due to the sudden change in shape, stress concentration is more likely to occur, and thus the situation of uneven force is more likely to appear, resulting in insulation layer damage and affecting the electrical performance and safety of the flexible flat cable. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide a flat cable traction assisting device and a using method thereof.

[0006] To achieve the aforementioned invention objective, the technical solution adopted by the present invention includes two mutually attached traction conveyor belts and a pressing conveyor belt. A traction groove is provided inside the traction conveyor belt, and the head and tail of the traction groove are connected end to end, so that the traction groove forms a ring along the perimeter of the traction conveyor belt; a flexible flat cable enters the traction groove with its flat surface parallel to the side wall of the traction groove, and the depth of the traction groove is not less than the width of the flat surface of the flexible flat cable. The length of the mutually attached area of the traction conveyor belt and the pressing conveyor belt forms a traction length. The traction groove has a plurality of arc-shaped parts, and the distance between any two adjacent arc-shaped parts does not exceed the traction length.

[0007] Preferably, the depth of the traction groove is equal to the width of the flat surface of the flexible flat cable, and the bottom surface of the traction groove and the pressing conveyor belt can jointly clamp the flexible flat cable.

[0008] Preferably, the arc-shaped part is semi-circular.

[0009] Preferably, several of the arc-shaped parts are connected in sequence, so that the traction groove is wavy.

[0010] Preferably, a guiding component is further included, and the guiding component is at least used to guide the flexible flat cable to enter the traction groove from the mutually attached area of the traction conveyor belt and the pressing conveyor belt.

[0011] Preferably, the guiding component includes a guiding plate frame arranged on one side of the traction conveyor belt for guiding the flexible flat cable into the traction groove. A support frame is fixedly connected to the bottom of the guiding plate frame, and side connecting rods are fixedly connected to both sides of the support frame.

[0012] Preferably, the running direction of the traction groove conforms to a sine function curve. The width of the traction groove on the surface of the traction conveyor belt is within a traction width range, and the connection line between the guiding plate frame and one end of the traction width range is parallel to the length direction of the traction conveyor belt; The guiding component includes a turntable. The turntable is located between the guiding plate frame and the traction conveyor belt, and the center of the turntable is on the same axis as the center point of the traction width range; a push rod is fixedly arranged on the top of the turntable, and the distance between the push rod and the center of the turntable is half of the traction width range.

[0013] Preferably, the guiding assembly includes a positioning frame fixedly connected to one side of the traction conveyor belt. A driving frame is fixedly connected to the top of the positioning frame. A threaded rod is rotatably connected inside the driving frame. A nut is threadedly connected to the threaded rod. A guiding plate frame for assisting the flexible flat cable to enter the traction groove is fixedly connected to the top of the nut. A bottom plate is fixedly connected to the bottom of the guiding plate frame. A transmission port is penetrated and opened inside the bottom plate. The nut is fixedly connected inside the transmission port. A guiding rod is fixedly connected to the bottom of the bottom plate. A guiding port for the guiding rod to slide is opened inside the positioning frame. A servo motor is fixedly connected to one side of the driving frame. The driving end of the servo motor is fixedly connected to the threaded rod.

[0014] Preferably, the number of the traction grooves is at least two, and several of the traction grooves are parallel to each other.

[0015] A usage method of a flat cable traction assisting device further includes the following steps: S1. Pass the flexible flat cable through the guiding assembly, and then dock the flexible flat cable with the traction groove; S2. Start the traction conveyor belt and the pressing conveyor belt. Clamp the flexible flat cable through the cooperation of the bottom surface of the traction groove and the pressing conveyor belt. Drive and traction the flexible flat cable to move by the traction conveyor belt and the pressing conveyor belt. The flat surface of the flexible flat cable is parallel and fitted to the side wall of the traction groove; S3. During the process of the traction conveyor belt and the pressing conveyor belt traction the flexible flat cable, assist the flexible flat cable to enter the traction groove through the guiding assembly. The flexible flat cable bends along the inner wall of the traction groove and is tractioned by the traction conveyor belt and the pressing conveyor belt, and moves from one side of the traction conveyor belt and the pressing conveyor belt to the other side to complete the traction.

[0016] Compared with the prior art, the advantages of the present invention include: (1) For a flat cable traction assisting device and a usage method provided by the present invention, the flexible flat cable is attached to the arc-shaped part, so that when the flexible flat cable is tractioned, the force application direction changes periodically, which will disperse the friction force received by the flexible flat cable, avoid the stress received by the flexible flat cable from being too concentrated, and prevent the situation that the insulating layer of the flexible flat cable is overstretched or damaged; (2) For a flat cable traction assisting device and a usage method provided by the present invention, the flexible flat cable is clamped by the bottom surface of the traction groove and the pressing conveyor belt to remove two sides of the flat surface, and the side wall of the traction groove is used to fit the flat surface of the flexible flat cable, so that the flexible flat cable is evenly stressed on multiple surfaces when being tractioned, thereby avoiding the situation that the insulating layer of the flexible flat cable is overstretched or damaged due to excessive friction force in some areas. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of a flat cable traction auxiliary device and its usage method in the present invention; Figure 2 It is a schematic diagram of the structure of the guiding component in the present invention; Figure 3 It is a schematic diagram of the structure of the traction groove in the present invention; Figure 4 It is a schematic diagram of the structure of the secondary guiding groove in the present invention; Figure 5 It is a schematic diagram of the structure of the guiding plate frame in the present invention.

[0019] Reference numerals: 1, frame; 2, middle bearing plate; 3, support leg; 4, traction conveyor belt; 401, traction belt body; 402, traction groove; 5, pressing conveyor belt; 501, secondary guiding groove; 6, support plate; 7, guiding component; 701, side connecting rod; 702, push rod; 703, turntable; 704, speed regulating motor; 705, guiding plate frame; 706, support frame; 707, guiding plate frame; 708, driving frame; 709, threaded rod; 710, servo motor; 711, bottom plate; 712, guiding rod; 713, positioning frame; 8, gear roller. Detailed implementation manners

[0020] In view of the deficiencies in the prior art, the inventors of this case have proposed the technical solution of the present invention through long-term research and a large number of practices. The following will further explain the technical solution, its implementation process and principle, etc. in combination with the drawings in the embodiments of the present application and specific implementation cases.

[0021] It should be noted that the embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention, and cannot be understood as a limitation of the present invention. The described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made on the spirit, principle and scope defined by the claims of the present invention. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0022] In the description of the present application, words such as "first", "second", "third" and the like do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "one" do not denote a quantity limitation, but mean that there is at least one. Words such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0023] In the description of the present application, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, when using position terms such as both sides, outer side, upper and lower, etc., it should be understood that they are only used for convenience of understanding and description, considering that the structure may be oriented to other positions.

[0024] In the description of the present application, unless otherwise clearly specified and limited, the technical terms or scientific terms used should have the ordinary meaning understood by those with ordinary skills in the field to which the present application belongs. Terms such as "installed", "connected", "coupled", etc. should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or in contact connection or integral connection; for those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0025] The embodiments of the present invention are intended to introduce and illustrate the structural composition of the flat cable traction auxiliary device and its usage method, and the cooperation relationship between the respective constituent structures. Unless otherwise specified, the dimensions, materials, manufacturing processes, etc. of the respective components in the flat cable traction auxiliary device and its usage method in the embodiments of the present invention can be selected according to specific circumstances, and no special limitation and description are made herein.

[0026] Furthermore, in order to enable the public to have a better understanding of the present invention, in the following detailed description of the present invention, some specific details are described in detail. For those skilled in the art, the present invention can be fully understood without the description of these details. Embodiment 1

[0027] Please refer to Figure 1 andFigure 2 A flat cable traction auxiliary device comprises two mutually attached traction conveyor belts 4 and a compression conveyor belt 5, wherein a traction groove 402 is arranged in the traction conveyor belt 4, and the traction groove 402 is connected end to end, so that the traction groove 402 forms a ring along the circumference of the traction conveyor belt 4; the flexible flat cable enters the traction groove 402 in a state where the flat surface is parallel to the side wall of the traction groove 402, and the depth of the traction groove 402 is not less than the flat surface width of the flexible flat cable; The length of the mutually contacting area of ​​the traction conveyor belt 4 and the compression conveyor belt 5 forms the traction length. The traction groove 402 has a plurality of arc-shaped portions, and the distance between any two adjacent arc-shaped portions does not exceed the traction length.

[0028] The traction conveyor belt 4 and the compression conveyor belt 5 are both transmission-connected to the frame 1, and the traction conveyor belt 4 includes a traction belt body 401 transmission-connected thereto, and the traction groove 402 is opened on the surface of the traction belt body 401. It can be understood that after the flexible flat cable enters the traction groove 402, the flexible flat cable can be pulled to move by a plurality of arc-shaped portions, and the compression conveyor belt 5 is pressed on the top of the traction groove 402 to prevent the flexible flat cable from running out of the traction groove 402.

[0029] See also Figure 3 The arc-shaped portion is semicircular. After the flexible flat cable enters the arc-shaped portion, the flexible flat cable will fit with the inner wall of the semicircle to generate friction, so that the flexible flat cable can be pulled to move when the traction belt body 401 is driven.

[0030] It can be understood that the specific transmission structure of the traction conveyor belt 4 and the compression conveyor belt 5 is as follows: the compression conveyor belt 5 includes a compression belt body that is transmission-connected inside it for pressing the flexible flat cable, and a plurality of gear rollers 8 are arranged in the traction belt body 401 and the compression belt body, and the plurality of gear rollers 8 are rotationally connected to the frame 1, and the traction belt body 401 and the compression belt body are meshed with a plurality of gear rollers 8 at corresponding positions, and two synchronous gears are arranged in the frame 1, one of which is fixedly connected to one of the gear rollers 8 for driving the traction belt body 401 to move, and the other is fixedly connected to the gear roller 8 for driving the compression belt One of the gear rollers 8 for moving the belt body is fixedly connected, a synchronous toothed belt is arranged in the frame 1, and the two synchronous wheels are connected through a synchronous toothed belt transmission. A control motor is fixedly connected in the frame 1, and a control rod is fixedly connected to the driving end of the control motor, and the control rod is fixedly connected to the synchronous gear. When in use, the control motor drives the control rod to rotate, and the control rod drives one of the synchronous gears to rotate, and the engagement between the two synchronous gears and the synchronous toothed belt respectively causes the gear rollers 8 located in the traction belt body 401 and the compression belt body to rotate, and the drive of the gear rollers 8 causes the traction belt body 401 and the compression belt body to move in the same direction.

[0031] It should be noted that a plurality of support legs 3 are fixedly connected to both sides of the frame 1, and a support plate 6 is fixedly connected to the bottom of each support leg 3. The arrangement of the support legs 3 and the support plates 6 enables the frame 1 to be stably placed on the ground, and a middle support plate 2 is fixedly connected to the middle of the frame 1. The middle support plate 2 is arranged between the traction conveyor belt 4 and the compression conveyor belt 5, so that the transmission areas of the traction conveyor belt 4 and the compression conveyor belt 5 can be distinguished.

[0032] See also Figure 3 , several arc-shaped portions are connected in sequence, so that the traction groove 402 is wavy. When the flexible flat cable enters the wavy groove body of the traction groove 402, the friction between the flexible flat cable and the inner wall of the groove body is used to limit the relative movement of the flexible flat cable and the traction groove 402, thereby providing traction for the flexible flat cable located outside the traction groove 402, and the bending of the flexible flat cable in the traction groove 402 is facilitated by the friction between the inner wall thereof, so that the flexible flat cable as a whole is not only pulled by the traction conveyor 4, but also by the friction provided by the traction groove 402, thereby avoiding the situation where the force on the flexible flat cable is too concentrated during the traction movement.

[0033] See also Figure 4 The shape of the compression belt body of the compression conveyor belt 5 can be flat, or it can be a secondary guide groove 501 that matches the shape of the traction groove 402. When the compression belt body of the compression conveyor belt 5 is in a flat state, the connection requirements between the flexible flat cable and the traction groove 402 are not high, and force can be applied to the top of the flexible flat cable. When a compression belt body with a secondary guide groove 501 is used, the space between the traction groove 402 and the secondary guide groove 501 is larger, which can accommodate a larger flexible flat cable to enter, but the accuracy of the flexible flat cable entering the traction groove 402 and the secondary guide groove 501 is slightly improved.

[0034] See also Figure 1 , and also includes a guiding component 7, which is at least used to guide the flexible flat cable from the mutually contacting area of ​​the traction conveyor belt 4 and the compression conveyor belt 5 into the traction groove 402. The setting of the guiding component 7 can guide the flexible flat cable into the traction groove 402.

[0035] See also Figure 2 The guide assembly 7 includes a guide plate frame 705 disposed on one side of the traction conveyor belt 4 for guiding the flexible flat cable into the traction groove 402. The bottom of the guide plate frame 705 is fixedly connected with a support frame 706. Both sides of the support frame 706 are fixedly connected with side connecting rods 701. The side connecting rods 701 are fixedly connected to the frame 1. The flexible flat cable can enter the traction groove 402 through the guide plate frame 705. The direction of the traction groove 402 conforms to a sine function curve. The width of the traction groove 402 on the surface of the traction conveyor belt 4 is within the traction width range. The connection line between the guiding plate frame 705 and one end of the traction width range is parallel to the length direction of the traction conveyor belt 4. The guiding assembly 7 includes a turntable 703. The turntable 703 is located between the guiding plate frame 705 and the traction conveyor belt 4. The center of the turntable 703 is on the same axis as the center point of the traction width range. A push rod 702 is fixedly arranged on the top of the turntable 703. The distance between the push rod 702 and the center of the turntable 703 is half of the traction width range. The direction of the traction groove 402 conforms to a sine function curve, that is, the internal groove track of the traction groove 402 has the characteristic of periodic reciprocation. With the setting of the push rod 702 that can move within the traction width range, by adjusting the moving speed of the push rod 702, the flexible flat cable can be smoothly pushed into the inside of the traction groove 402.

[0036] It can be understood that one side of the support frame 706 is fixedly connected with a speed regulating motor 704, and the driving end of the speed regulating motor 704 is fixedly connected with the center of the bottom of the turntable 703. In the initial state, the flexible flat cable passes through the guiding plate frame 705 and can normally enter one end of the traction width range of the traction groove 402. According to the running speed of the traction belt body 401, the rotation speed of the driving end of the speed regulating motor 704 is adjusted. After starting the traction conveyor belt 4, the traction groove 402 will move along with the transmission of the traction conveyor belt 4. At this time, the speed regulating motor 704 is started to make the turntable 703 rotate. The rotation of the turntable 703 will cause the connected push rod 702 to move, and the push rod 702 will push the flexible flat cable to move towards the other end of the traction width range, so that the flexible flat cable can enter its inside along the track of the traction groove 402.

[0037] The number of the traction grooves 402 is at least two. A plurality of traction grooves 402 are parallel to each other, and the number of flexible flat cables that can be simultaneously tractioned can be adjusted by adjusting the number of the traction grooves 402.

[0038] A method for using a flat cable traction auxiliary device further includes the following steps: S1. Pass the flexible flat cable through the guiding assembly 7, and then dock the flexible flat cable with the traction groove 402. S2. Start the traction conveyor belt 4 and the pressing conveyor belt 5. The flexible flat cable is clamped by the cooperation of the bottom surface of the traction groove 402 and the pressing conveyor belt 5, and the flexible flat cable is tractioned to move by the transmission of the traction conveyor belt 4 and the pressing conveyor belt 5. The flat surface of the flexible flat cable is parallel and fitted with the side wall of the traction groove 402. S3. During the process of the traction conveyor belt 4 and the pressing conveyor belt 5 pulling the flexible flat cable, the guiding assembly 7 is used to assist the flexible flat cable to enter the traction groove 402. The flexible flat cable bends along the inner wall of the traction groove 402 and is pulled by the traction conveyor belt 4 and the pressing conveyor belt 5, and moves from one side of the traction conveyor belt 4 and the pressing conveyor belt 5 to the other side to complete the traction.

[0039] Working principle: The flexible flat cable is passed through the guiding plate frame 705 so that its end is docked with the traction groove 402. Then, the rotational speed of the driving end of the speed-regulating motor 704 is adjusted according to the running speed of the traction belt body 401. Then, the traction conveyor belt 4 and the pressing conveyor belt 5 are started. The movement of the traction belt body 401 inside the traction conveyor belt 4 drives the flexible flat cable to move. The relative friction between the flexible flat cable and the inner wall of the traction groove 402, and the bending along the semi-circular groove of the arc portion cause the force direction of the flexible flat cable to change periodically during traction, which will disperse the frictional force received by the flexible flat cable and avoid excessive stress concentration on the flexible flat cable. After the traction conveyor belt 4 is started, the traction groove 402 will move with the transmission of the traction conveyor belt 4. At this time, the speed-regulating motor 704 is started to make the turntable 703 rotate. The rotation of the turntable 703 will cause the push rod 702 connected to it to move. The push rod 702 pushes the flexible flat cable to move to the other end of the traction width range, so that the flexible flat cable can enter its interior along the track of the traction groove 402, and the pressing conveyor belt 5 presses the top of the flexible flat cable to assist the traction movement by using frictional force. Embodiment 2

[0040] Based on Embodiment 1, the depth of the traction groove 402 being equal to the flat surface width of the flexible flat cable is replaced with the depth of the traction groove 402 being greater than the flat surface width of the flexible flat cable. Compared with Embodiment 1, at this time, the pressing belt body of the pressing conveyor belt 5 does not contact the flexible flat cable, and only the bending and frictional force when the flexible flat cable contacts the traction groove 402 enable it to be pulled by itself, but it can limit the flexible flat cable from running out of the interior of the traction groove 402 and play a role in limiting the position, but it cannot provide assistance for the movement of the flexible flat cable. Embodiment 3

[0041] Please refer to Figure 5, on the basis of Embodiment 1, the internal structure of the original guiding component 7 is replaced with: The guiding component 7 includes a positioning frame 713 fixedly connected to one side of the traction conveyor belt 4. The top of the positioning frame 713 is fixedly connected with a driving frame 708. A threaded rod 709 is rotatably connected inside the driving frame 708. A nut is threadedly connected to the threaded rod 709. The top of the nut is fixedly connected with a guiding plate frame 707 for assisting the flexible flat cable to enter the traction groove 402. The bottom of the guiding plate frame 707 is fixedly connected with a bottom plate 711. A transmission port is penetrated and opened inside the bottom plate 711. The nut is fixedly connected inside the transmission port. The bottom of the bottom plate 711 is fixedly connected with a guiding rod 712. A guiding port for the guiding rod 712 to slide is opened inside the positioning frame 713. One side of the driving frame 708 is fixedly connected with a servo motor 710. The driving end of the servo motor 710 is fixedly connected with the threaded rod 709. By starting the servo motor 710, the threaded rod 709 can be driven to rotate clockwise and counterclockwise, so that the nut drives the guiding plate frame 707 to move. Thus, the guiding plate frame 707 can reciprocate periodically according to the movement track of the arc part of the traction groove 402. Through the reciprocating movement of the guiding plate frame 707, the flexible flat cable can be assisted to pass through the inside of the guiding plate frame 707 and enter the traction groove 402. Compared with the guiding component 7 in Embodiment 1, the moving range of the guiding plate frame 705 can be adjusted in real time according to the shape of the traction groove 402, but the structure adopted is more complex than the guiding component 7 in Embodiment 1.

[0042] It should be understood that the above embodiments are only used to illustrate the technical concept and features of the present invention. The purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly. It cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made. All equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A flat cable traction auxiliary device, comprising two traction conveyor belts (4) and a compression conveyor belt (5) that fit each other, characterized in that: A traction groove (402) is provided in the traction conveyor belt (4), and the traction groove (402) is connected end to end, so that the traction groove (402) forms a ring along the circumference of the traction conveyor belt (4); the flexible flat cable enters the traction groove (402) in a state where the flat surface is parallel to the side wall of the traction groove (402), and the depth of the traction groove (402) is not less than the width of the flat surface of the flexible flat cable; The length of the mutually contacting area of ​​the traction conveyor belt (4) and the pressing conveyor belt (5) forms a traction length, and the traction groove (402) has a plurality of arc-shaped portions, and the distance between any two adjacent arc-shaped portions does not exceed the traction length.

2. A flat cable pulling auxiliary device according to claim 1, characterized in that: The depth of the traction groove (402) is equal to the width of the flat surface of the flexible flat cable, and the bottom surface of the traction groove (402) and the pressing conveyor belt (5) can jointly clamp the flexible flat cable.

3. A flat cable pulling auxiliary device according to claim 1, characterized in that: The arc-shaped portion is semicircular.

4. A flat cable pulling auxiliary device according to claim 1, characterized in that: A plurality of the arc-shaped portions are connected in sequence, so that the traction groove (402) is wavy.

5. A flat cable pulling auxiliary device according to claim 1, characterized in that: It also comprises a guiding assembly (7), wherein the guiding assembly (7) is at least used to guide the flexible flat cable from the mutually contacting area of ​​the traction conveyor belt (4) and the pressing conveyor belt (5) into the traction groove (402).

6. A flat cable pulling auxiliary device according to claim 5, characterized in that: The guide assembly (7) comprises a guide plate frame (705) arranged on one side of the traction conveyor belt (4) for guiding the flexible flat cable into the traction groove (402); a support frame (706) is fixedly connected to the bottom of the guide plate frame (705); and side connecting rods (701) are fixedly connected to both sides of the support frame (706).

7. A flat cable pulling auxiliary device according to claim 6, characterized in that: The direction of the traction groove (402) conforms to a sinusoidal function curve, the width of the traction groove (402) on the surface of the traction conveyor belt (4) is a traction width range, and a line connecting the guide plate frame (705) and one end of the traction width range is parallel to the length direction of the traction conveyor belt (4); The guide assembly (7) comprises a turntable (703), the turntable (703) being located between the guide plate frame (705) and the traction conveyor belt (4), and the center of the turntable (703) and the center point of the traction width range being on the same axis; A push rod (702) is fixedly arranged on the top of the rotating disk (703), and the distance between the push rod (702) and the center of the rotating disk (703) is half of the traction width range.

8. A flat cable pulling auxiliary device according to claim 5, characterized in that: The guide assembly (7) comprises a positioning frame (713) fixedly connected to one side of the traction conveyor belt (4); the top of the positioning frame (713) is fixedly connected to a driving frame (708); a threaded rod (709) is rotatably connected to the driving frame (708); a nut is threadedly connected to the threaded rod (709); a guide plate frame (707) for assisting the flexible flat cable to enter the traction groove (402) is fixedly connected to the top of the nut; a bottom plate (711) is fixedly connected to the bottom of the guide plate frame (707); a transmission opening is provided through the bottom plate (711); the nut is fixedly connected to the transmission opening; a guide rod (712) is fixedly connected to the bottom of the bottom plate (711); a guide opening for the guide rod (712) to slide is provided in the positioning frame (713); a servo motor (710) is fixedly connected to one side of the driving frame (708); a driving end of the servo motor (710) is fixedly connected to the threaded rod (709).

9. A flat cable pulling auxiliary device according to claim 1, characterized in that: The number of the traction grooves (402) is at least two, and a plurality of the traction grooves (402) are parallel to each other.

10. A method for using a flat cable traction auxiliary device according to any one of claims 1 to 9, characterized in that: The following steps are also included: S1, passing the flexible flat cable through the guide assembly (7), and then docking the flexible flat cable with the traction groove (402); S2, starting the traction conveyor belt (4) and the pressing conveyor belt (5), clamping the flexible flat cable through the bottom surface of the traction groove (402) and the pressing conveyor belt (5), and moving the flexible flat cable by the transmission of the traction conveyor belt (4) and the pressing conveyor belt (5), so that the flat surface of the flexible flat cable is parallel to and in contact with the side wall of the traction groove (402); S3. During the process of the traction conveyor belt (4) and the compression conveyor belt (5) pulling the flexible flat cable, the guide component (7) assists the flexible flat cable to enter the traction groove (402). The flexible flat cable bends along the inner wall of the traction groove (402) and is pulled by the traction conveyor belt (4) and the compression conveyor belt (5), and moves from one side of the traction conveyor belt (4) and the compression conveyor belt (5) to the other side to complete the traction.

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