Device for quickly wrapping wire harness with adhesive tape

Abstract

The utility model relates to the field of wire harness processing, in particular to a wire harness rapid adhesive tape wrapping device which comprises a frame body, a driving device, a rotating device and a conveying device are arranged on the frame body, the rotating device and the conveying device are both rotationally connected with the frame body, and the driving device is fixedly connected with the rotating device. The driving device is used for driving the rotating device to rotate along own axis; the rotating device is provided with at least two clamping structures, the two clamping structures are rotationally connected with the two sides of the frame body respectively, a wire harness is arranged between the two clamping structures, and the two ends of the wire harness are fixedly connected with the two clamping structures; the conveying device comprises a conveying rod and an unwinding device, the two ends of the conveying rod are rotationally connected with the frame body, the unwinding device is in threaded connection with the conveying rod, an adhesive tape is fixedly connected to the unwinding device, the unwinding device is used for driving the adhesive tape to move along the conveying rod, and the effect of improving the operation efficiency when the wire harness is wrapped with the insulating adhesive tape is achieved.

Description

Technical Field

[0001] The present application relates to the field of wire harness processing, and in particular to a wire harness rapid tape wrapping device. Background Art

[0002] Currently, some wiring harnesses require multiple cables to be wrapped together using insulating tape during production.

[0003] The existing method of wrapping the wire harness with tape is usually to wrap the wire harness manually by holding the insulating tape.

[0004] The above-mentioned prior art solutions have the following defects: workers hold insulating tape to wrap the wire harness, which results in high labor intensity and low work efficiency. Utility Model Content

[0005] In order to improve the working efficiency when wrapping the wiring harness with insulating tape, the present application provides a wiring harness quick tape wrapping device.

[0006] The above technical objectives of this application are achieved through the following technical solutions:

[0007] A device for quickly wrapping wire harnesses with adhesive tape, characterized in that: it includes a frame, on which a driving device, a rotating device and a conveying device are arranged, the rotating device and the conveying device are both rotatably connected to the frame, the driving device is fixedly connected to the rotating device, and the driving device is used to drive the rotating device to rotate along its own axis; the rotating device is provided with a clamping structure, at least two clamping structures are provided, the two clamping structures are respectively rotatably connected to two sides of the frame, a wire harness is arranged between the two clamping structures, and both ends of the wire harness are fixedly connected to the two clamping structures; the conveying device includes a conveying rod and a unwinding device, both ends of the conveying rod are rotatably connected to the frame, the unwinding device is threadedly connected to the conveying rod, the unwinding device is fixedly connected to the tape, and the unwinding device is used to drive the tape to move along the conveying rod.

[0008] By adopting the above scheme, a rotating device and a transmission device are arranged on the frame, the rotating device is used to drive the wire harness to rotate along its own axis, the rotating device includes a clamping structure, two clamping structures are arranged, the two clamping structures are respectively connected to the two sides of the frame for rotation, the two ends of the wire harness are respectively clamped by the two clamping structures, the two clamping structures rotate to drive the wire harness to rotate along its own axis, a driving device is fixedly connected to one end of the rotation, the driving device is used to drive the clamping structure to rotate, the clamping structure rotates to drive the wire harness to rotate, and then a transmission device is arranged on the frame The conveying device includes a conveying rod, both ends of the conveying rod are rotatably connected to the frame, and a reeling device is threadedly connected to the conveying rod. The reeling device rotates relatively with the conveying rod and the frame, and moves along the conveying rod. The reeling device is used to connect the tape. When the device is used to wrap the wire harness with tape, the end of the tape in the reeling device is wound around the wire harness. The reeling device releases the tape from the wire harness while moving along the conveying rod. The wire harness is wrapped with the tape under the action of its own rotation, and the working efficiency is improved when the wire harness is wrapped with the insulating tape.

[0009] Furthermore, the driving device includes a driving wheel, a driven wheel and a braking structure, one end of the driving wheel and the driven wheel are both rotatably connected to the frame, the braking structure is fixedly connected to an end of the driving wheel away from the frame, and the braking structure is used to apply external force to the driving wheel; the driving wheel and the driven wheel are connected by a conveyor belt; and one end of the driven wheel away from the frame is fixedly connected to the rotating device.

[0010] By adopting the above scheme, a driving wheel and a driven wheel are rotatably connected on the frame, and the driving wheel and the driven wheel are connected by a conveyor belt, that is, the driving wheel rotates to drive the driven wheel to rotate through the conveyor belt, and a braking device is fixedly connected to the end of the driving wheel away from the frame, and the braking device is used to drive the driving wheel to rotate. Because the end of the driven wheel away from the frame is fixedly connected to the rotating device, the braking device applies a force to the driving wheel, and the driving wheel rotates, which drives the driven wheel to rotate through the conveyor belt, and the driven wheel rotates to drive the rotating device fixedly connected to the driven wheel to rotate.

[0011] Furthermore, the braking structure includes a brake pedal, a connecting rod and a rotating rod, the brake pedal is rotatably connected to the frame, one end of the rotating rod is fixedly connected to the driving wheel, one end of the rotating rod away from the brake pedal is rotatably connected to the connecting rod, and one end of the connecting rod away from the rotating rod is fixedly connected to the brake pedal.

[0012] By adopting the above scheme, a rotating rod is fixedly connected to the end of the driving wheel away from the frame, a connecting rod is rotatably connected to the rotating rod, and the end of the connecting rod away from the rotating rod is fixedly connected to the brake pedal. The brake pedal is rotatably connected to the frame, so that a pressure is applied to the brake pedal, and the brake pedal and the frame rotate relatively. The brake pedal drives the rotating rod to rotate through the connecting rod, and the rotation of the rotating rod drives the driving wheel fixedly connected to the rotating rod to rotate.

[0013] Furthermore, the unwinding device includes a slider and a release rod, the slider is threadedly connected to the transmission rod, a side wall of the slider close to the rotating device is provided with a receiving groove, and the release rod is rotatably connected to the side wall of the receiving groove.

[0014] By adopting the above scheme, the conveying rod rotates to drive the slider to move along the conveying rod, and a receiving groove is opened in the slider. The receiving groove is used to place the tape, so that the tape moves with the receiving groove, but the tape needs to rotate to release the tape during the movement, so a release rod is rotatably connected in the receiving groove, and the release rod is fixedly connected to the tape, so that when the tape moves along the conveying rod through the receiving groove, the release rod rotates to release the tape.

[0015] Furthermore, a limiting device is provided on the rotating device, and the limiting device includes a limiting rod, both ends of the limiting rod are rotatably connected to the frame, both ends of the limiting rod close to the frame are fixedly connected to the first gear, and both ends of the rotating device close to the frame are fixedly connected to the second gear, and each first gear is meshed with the second gear.

[0016] By adopting the above scheme, the driving device drives one end of the rotating device to rotate. Since the material of the wire harness fixedly connected to the rotating device is non-rigid material, a limit device is arranged on the rotating device, and the limit device includes a limit rod, both ends of the limit rod are rotatably connected to the frame, both ends of the limit rod close to the frame are fixedly connected to the first gear, and both ends of the rotating device close to the frame are fixedly connected to the second gear, and each first gear is meshed with the second gear. Through the above arrangement, the force applied by the driving device to one end of the rotating device drives the first gear meshed with the second gear to rotate through the second gear, and the rotation of the first gear drives the limit rod to rotate, and the rotation of the limit rod drives the first gear at one end of the principle driving device to rotate. Due to the meshing of the first gear and the second gear, one end of the principle driving device of the rotating device rotates synchronously, thereby preventing the wire harness from being tangled in the rotating device due to the inability to apply the driving device to the other end of the rotating device.

[0017] Furthermore, each of the clamping structures comprises a rotating plate and a clamping member, the rotating plate is rotatably connected to the frame, the clamping member is fixedly connected to the rotating plate, and the clamping member is used to clamp the wire harness.

[0018] By adopting the above solution, a rotating plate is fixedly connected to both ends of the rotating device, and a clamping member is fixedly connected to each rotating plate. The clamping member is used to clamp the wire harness so that the wire harness is horizontally clamped in the rotating device.

[0019] Furthermore, the rotating device also includes a supporting structure, which includes a supporting plate and a supporting rod. The supporting plate is fixedly connected to the frame table top, the supporting rod is vertically arranged to the support plate, one end of the supporting rod passes through the supporting plate and is rotatably connected to the support plate, the other end of the supporting rod is rotatably connected to the side wall of the frame, and the end of the supporting rod away from the side wall of the frame is fixedly connected to the rotating plate.

[0020] By adopting the above scheme, a support plate is set on the frame, and a support rod is rotatably connected inside the support plate. One end of the support rod is rotatably connected to the frame, and the other end of the support rod is used to be fixedly connected to the rotating plate. The support plate and the connecting rod work together to ensure that a certain distance is maintained between the rotating device and the table surface of the frame, thereby preventing the wiring harness from rubbing against the table surface when rotating inside the rotating device.

[0021] Furthermore, one end of the transmission rod is fixedly connected to a driving member, and the side wall of the frame is fixedly connected to a bearing plate, the bearing plate is fixedly connected to the driving member, and the bearing plate is used to support the driving member.

[0022] By adopting the above scheme, a driving member is fixedly connected to one end of the transmission rod, and the driving member is used to drive the rotating rod to rotate along its own axis. Then a supporting plate is fixedly connected to the side wall of the frame, and the supporting plate is used to support the driving member to prevent the supporting member from falling.

[0023] In summary, this application has the following technical effects:

[0024] 1. By setting up the device, a rotating device and a transmission device are arranged on the frame, the rotating device is used to drive the wire harness to rotate along its own axis, the rotating device includes a clamping structure, two clamping structures are arranged, the two clamping structures are respectively connected to the two sides of the frame for rotation, the two ends of the wire harness are respectively clamped by the two clamping structures, the two clamping structures rotate to drive the wire harness to rotate along its own axis, a driving device is fixedly connected to one end of the rotation, the driving device is used to drive the clamping structure to rotate, the clamping structure rotates to drive the wire harness to rotate, and then a transmission device is arranged on the frame The conveying device includes a conveying rod, both ends of the conveying rod are rotatably connected to the frame, and a reeling device is threadedly connected to the conveying rod. The reeling device rotates relatively with the conveying rod and the frame, and moves along the conveying rod. The reeling device is used to connect the tape. When the device is used to wrap the wire harness with tape, the end of the tape in the reeling device is wound around the wire harness. The reeling device releases the tape from the wire harness while moving along the conveying rod. The wire harness is wrapped with the tape under the action of its own rotation, and the working efficiency is improved when the wire harness is wrapped with the insulating tape.

[0025] 2. A driving device is provided, and a driving wheel and a driven wheel are rotatably connected on the frame. The driving wheel and the driven wheel are connected by a conveyor belt, that is, the driving wheel rotates to drive the driven wheel to rotate through the conveyor belt. A braking device is fixedly connected to the end of the driving wheel away from the frame. The braking device is used to drive the driving wheel to rotate. Since the end of the driven wheel away from the frame is fixedly connected to the rotating device, the braking device applies a force to the driving wheel. The driving wheel rotates, and the driven wheel is driven to rotate through the conveyor belt. The driven wheel rotates and then drives the rotating device fixedly connected to the driven wheel to rotate;

[0026] 3. By setting up a reeling device, the conveying rod rotates to drive the slider to move along the conveying rod, and a receiving groove is opened in the slider. The receiving groove is used to place the tape so that the tape moves with the receiving groove. However, the tape needs to rotate to release the tape during the movement, so a release rod is rotatably connected in the receiving groove, and the release rod is fixedly connected to the tape, so that when the tape moves along the conveying rod through the receiving groove, the release rod rotates to release the tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of a wire harness quick tape wrapping device of the present application;

[0028] Figure 2 It is a partial structural schematic diagram of the rotating device of the present application;

[0029] Figure 3 It is a structural schematic diagram of the transmission device of the present application;

[0030] Figure 4 It is a schematic diagram of the structure of the driving device of the present application;

[0031] Figure 5 It is a structural schematic diagram of the limiting device of the present application.

[0032] In the figure, 1, frame; 11, through slot; 2, driving device; 21, driving wheel; 221, conveyor belt; 22, driven wheel; 23, braking structure; 231, brake pedal; 232, connecting rod; 233, rotating rod; 3, rotating device; 31, clamping structure; 311, rotating plate; 312, clamping member; 32, supporting structure; 321, supporting plate; 322, supporting rod; 4, conveying device; 41, conveying rod; 42, unwinding device; 421, slider; 4211, accommodating groove; 422, releasing rod; 5, limiting device; 51, limiting rod; 52, first gear; 53, second gear; 6, driving member; 7, bearing plate; 8, positioning plate; 9, wiring harness; 10, tape. DETAILED DESCRIPTION

[0033] The present application is further described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1 The present embodiment provides a device for quickly wrapping a wire harness with adhesive tape, including a frame 1, on which a driving device 2, a rotating device 3 and a conveying device 4 are arranged, the rotating device 3 and the conveying device 4 are both rotatably connected to the frame 1, the driving device 2 is connected to the rotating device 3, and the driving device 2 is used to drive the rotating device 3 to rotate; the rotating device 3 is used to clamp the wire harness 9 and drive the wire harness 9 to rotate, the conveying device 4 is used to clamp the adhesive tape 10 and drive the adhesive tape 10 to move, and the conveying device 10 wraps the adhesive tape 10 onto the wire harness 9 during the movement.

[0035] Reference Figure 1-2 The rotating device 3 includes a clamping structure 31 and a supporting structure 32. At least two clamping structures 31 are provided. The two clamping structures 31 are rotatably connected to the two sides of the frame 1 respectively. A wire harness 9 is provided between the two clamping structures 31. Both ends of the wire harness 9 are fixedly connected to the two clamping structures 31. In this embodiment, two supporting structures 32 are provided. The two supporting structures 32 are located on both sides of the frame 1 and are rotatably connected to the side walls of the frame 1. Each supporting structure 32 is correspondingly provided with a clamping structure 31. The clamping structure 31 is fixedly connected to the supporting structure 32. The two clamping structures 31 are used to clamp the wire harness 9. Each supporting structure 32 includes a support plate 321 and a support plate 322. The support rod 322 and the support plate 321 are fixedly connected to the table top of the frame 1, the support rod 322 and the support plate 321 are vertically arranged, one end of the support rod 322 passes through the support plate 321 and is rotatably connected to the support plate 321, the other end of the support rod 322 is rotatably connected to the side wall of the frame 1, and the end of the support rod 322 away from the side wall of the frame 1 is fixedly connected to the clamping structure 31; each clamping structure 31 includes a rotating plate 311 and a clamping member 312, the rotating plate 311 is fixedly connected to the end of the support rod 322 away from the frame 1, the clamping member 312 is fixedly connected to the end of the rotating plate 311 away from the support rod 322, and the two clamping members 312 clamp the two ends of the wiring harness 9.

[0036] Reference Figure 1 and Figure 3 The conveying device 4 includes a conveying rod 41 and a reeling device 42. The two ends of the conveying rod 41 are rotatably connected to the side walls of the frame 1 respectively. The reeling device 42 includes a slider 421 and a release rod 422. The slider 421 is threadedly connected to the conveying rod 41. A receiving groove 4211 is provided in the slider 421. The release rod 422 is rotatably connected to the receiving groove 4211. The release rod 422 is fixedly connected to the release rod 422.

[0037] Reference Figure 4The driving device 2 includes a driving wheel 21, a driven wheel 22 and a brake structure 23. One end of the driving wheel 21 is rotatably connected to the side wall of the frame 1. The driven wheel 22 vertically corresponds to the driving wheel 21. The driven wheel 22 is fixedly connected to the support rod 322. A through groove 11 is provided on the table of the frame 1. A conveyor belt 221 is provided between the driving wheel 21 and the rotating wheel. The conveyor belt 221 passes through the through groove 11 and is sleeved on the driving wheel 21 and the driven wheel 22. The conveyor belt 221 is used to drive the driven wheel 22 to rotate with the rotation of the driving wheel 21. The brake structure 23 is fixedly connected to one end of the driving wheel 21 away from the frame 1. The brake structure 23 is used to drive the driving wheel 21 to rotate; the brake structure 23 includes a brake pedal 231, a connecting rod 232 and a rotating rod 233. The brake pedal 231 is connected to the frame 1 The side wall is rotatably connected, one end of the connecting rod 232 is hinged to the brake pedal 231, and the other end of the connecting rod 232 is rotatably connected to the rotating rod 233. One end of the rotating rod 233 is fixedly connected to the driven wheel 22, and the other end of the rotating rod 233 is rotatably connected to the positioning plate 8, and the end of the positioning plate 8 away from the rotating rod 233 is fixedly connected to the frame 1; the brake pedal 231 is stepped on back and forth, the brake pedal 231 drives the connecting rod 232 to move, and the other end of the connecting rod 232 drives the rotating rod 233 to rotate, and the rotating rod 233 drives the driving wheel 21 to rotate, and the driving wheel 21 drives the driven wheel 22 to rotate through the conveyor belt 221, and the rotation of the driven wheel 22 drives the support rod 322 to rotate, and the rotation of the support rod 322 drives the wiring harness 9 fixedly connected to the rotating plate 311 to rotate along its own axis.

[0038] Reference Figure 5 The rotating device 3 is also connected to a limiting device 5, which is used to disperse the driving force applied by the driving device 2 to the rotating device 3 to the two clamping structures 31, so that the two clamping structures 31 rotate synchronously relative to the frame 1; the limiting device 5 includes a limiting rod 51, a first gear 52 and a second gear 53, both ends of the limiting rod 51 are rotatably connected to the side wall of the frame 1, both ends of the limiting rod 51 close to the side wall of the frame 1 are fixedly connected to the second gear 53, each second gear 53 is meshed with a first gear 52, and the two first gears 52 are respectively fixedly connected to the two support rods 322. Through the above arrangement, the driven wheel 22 is driven by the driving wheel 21 to drive the support rod 322 to rotate, the support rod 322 drives the first gear 52 to rotate, the first gear 52 drives the second gear 53 to rotate, and the second gear 53 rotates to drive the limiting rod 51 to rotate, and the limiting rod 51 rotates to drive the other end of the support rod 322 to rotate through the meshing first gear 52 and second gear 53.

[0039] Reference Figure 1 One end of the transmission rod 41 is fixedly connected to a driving member 6, and the driving member 6 drives the transmission rod 41 to rotate along its own axis. A bearing plate 7 is fixedly connected to one side of the frame 1 close to the driving member 6, and the bearing plate 7 is fixedly connected to the driving member 6.

[0040] The implementation principle of a wire harness quick tape wrapping device in the embodiment of the present application is as follows: when the device is used to wrap the wire with tape 10, firstly, the two ends of the wire are fixedly connected to the two clamping members 312 respectively, the tape 10 is fixedly connected to the release rod 422, and then one end of the tape 10 is wound around one end of the wire harness 9; then the driving member 6 is started, the driving member 6 drives the transmission rod 41 to rotate along its own axis, the transmission rod 41 drives the slider 421 threadedly connected to the transmission rod 41 to move along the transmission rod 41, and at the same time, the brake pedal 231 is stepped on, the brake pedal 231 moves, drives the connecting rod 232 to move, the connecting rod 232 drives the rotating rod 233 to rotate, the rotating rod 233 drives the driving wheel 21 to rotate, the driving wheel 21 drives the driven wheel 22 to rotate through the conveyor belt 221; the driven wheel 22 The rotation drives the support rod 322 to rotate, and the support rod 322 drives the limit rod 51 to rotate through the meshing of the first gear 52 and the second gear 53. Since both ends of the limit rod 51 are meshed with the two clamping structures 31 through the meshing of the first gear 52 and the second gear 53, the rotation of the limit rod 51 causes the two clamping structures 31 to rotate synchronously. The rotation of the clamping structure 31 drives the wiring harness 9 fixedly connected to the clamping structure 31 to rotate along its own axis. The rotation of the wiring harness 9 pulls the tape 10, and the tape 10 is subjected to tension, causing the release rod 422 to rotate, thereby completing the release of the tape 10. Continuing the above work, the tape 10 is displaced and released along the transmission rod 41. When the wiring harness 9 rotates along its own axis, the released tape 10 is wrapped around the surface of the wiring harness 9 until the entire wiring harness 9 is wrapped by the tape 10.

[0041] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present application.

Claims

1. A wire harness quick tape wrapping device, characterized in that: The invention comprises a frame (1), wherein a driving device (2), a rotating device (3) and a conveying device (4) are arranged on the frame (1), wherein the rotating device (3) and the conveying device (4) are both rotatably connected to the frame (1), and the driving device (2) is fixedly connected to the rotating device (3), and the driving device (2) is used to drive the rotating device (3) to rotate along its own axis; the rotating device (3) is provided with a clamping structure (31), and at least two clamping structures (31) are provided, and the two clamping structures (31) are respectively connected to two sides of the frame (1). Rotationally connected, a wire harness (9) is arranged between the two clamping structures (31), and both ends of the wire harness (9) are fixedly connected to the two clamping structures (31); the conveying device (4) comprises a conveying rod (41) and a reeling device (42), both ends of the conveying rod (41) are rotationally connected to the frame (1), the reeling device (42) is threadedly connected to the conveying rod (41), an adhesive tape (10) is fixedly connected to the reeling device (42), and the reeling device (42) is used to drive the adhesive tape (10) to move along the conveying rod (41).

2. A wire harness quick tape wrapping device according to claim 1, characterized in that: The driving device (2) comprises a driving wheel (21), a driven wheel (22) and a brake structure (23); one end of the driving wheel (21) and the driven wheel (22) are both rotatably connected to the frame (1); the brake structure (23) is fixedly connected to the end of the driving wheel (21) away from the frame (1); the brake structure (23) is used to apply an external force to the driving wheel (21); the driving wheel (21) and the driven wheel (22) are connected via a conveyor belt (221); and the end of the driven wheel (22) away from the frame (1) is fixedly connected to the rotating device (3).

3. A wire harness quick tape wrapping device according to claim 2, characterized in that: The brake structure (23) comprises a brake pedal (231), a connecting rod (232) and a rotating rod (233); the brake pedal (231) is rotationally connected to the frame (1); one end of the rotating rod (233) is fixedly connected to the driving wheel (21); one end of the rotating rod (233) away from the brake pedal (231) is rotationally connected to the connecting rod (232); and one end of the connecting rod (232) away from the rotating rod (233) is fixedly connected to the brake pedal (231).

4. A wire harness quick tape wrapping device according to claim 1, characterized in that: The unwinding device (42) comprises a slider (421) and a release rod (422); the slider (421) is threadedly connected to the transmission rod (41); a receiving groove (4211) is provided on a side wall of the slider (421) close to the rotating device (3); and the release rod (422) is rotatably connected to the side wall of the receiving groove (4211).

5. A wire harness quick tape wrapping device according to claim 1, characterized in that: The rotating device (3) is provided with a limiting device (5), the limiting device (5) comprising a limiting rod (51), both ends of the limiting rod (51) are rotatably connected to the frame body (1), both ends of the limiting rod (51) close to the frame body (1) are fixedly connected to a first gear (52), and both ends of the rotating device (3) close to the frame body (1) are fixedly connected to a second gear (53), and each first gear (52) is meshed with a second gear (53).

6. A wire harness quick tape wrapping device according to claim 1, characterized in that: Each of the clamping structures (31) comprises a rotating plate (311) and a clamping member (312); the rotating plate (311) is rotatably connected to the frame (1); the clamping member (312) is fixedly connected to the rotating plate (311); and the clamping member (312) is used to clamp the wiring harness (9).

7. A wire harness quick tape wrapping device according to claim 6, characterized in that: The rotating device (3) also includes a supporting structure (32), the supporting structure (32) including a supporting plate (321) and a supporting rod (322), the supporting plate (321) being fixedly connected to the table top of the frame body (1), the supporting rod (322) being arranged vertically to the supporting plate (321), one end of the supporting rod (322) passing through the supporting plate (321) and being rotatably connected to the supporting plate (321), the other end of the supporting rod (322) being rotatably connected to the side wall of the frame body (1), and the end of the supporting rod (322) away from the side wall of the frame body (1) being fixedly connected to the rotating plate (311).

8. The wire harness quick tape wrapping device according to claim 1, characterized in that: One end of the transmission rod (41) is fixedly connected to a driving member (6), and the side wall of the frame body (1) is fixedly connected to a bearing plate (7), the bearing plate (7) is fixedly connected to the driving member (6), and the bearing plate (7) is used to support the driving member (6).

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