Wire harness pay-off device

Abstract

The utility model relates to the technical field of wire harness production, and provides a wire harness pay-off device which comprises a supporting frame, a pay-off shaft, a positioning wheel, a steel pull belt, a connecting rod and a tensioning assembly, the pay-off shaft is rotationally connected to the supporting frame, and the pay-off shaft is used for installing a wire harness disc; the positioning wheel is connected to the unwinding shaft, the steel drawstring is wound and attached to the positioning wheel, one end of the steel drawstring is connected with the supporting frame, and the other end of the steel drawstring is connected with the connecting rod; the connecting rod is used for connecting the steel drawstring and the tensioning assembly, and the tensioning assembly is hinged to the supporting frame and used for pulling a wire harness. The tension adjusting device has the effect of conveniently adjusting the tension of the wire harness in real time.

Description

Technical Field

[0001] This application relates to the technical field of wire harness production, and particularly to a wire harness unwinding device. Background Art

[0002] A wire harness is generally a slender strip, such as a wire, a cable, a solder strip, etc. During the production process, in order to facilitate operation, an unwinding device is often required to cooperate with other production equipment. The wire harness reel wound with the wire harness is fixed on the unwinder in advance, and the wire harness is released by the unwinder during the operation, thereby saving the manual workload and improving the production efficiency.

[0003] In view of the above related technologies, most of the existing unwinding devices adopt a static tensioning device to control the tension of the wire harness through a preset tension. However, this method cannot flexibly adjust the wire harness tension and is difficult to adapt to various dynamic situations that may occur during the production process, such as the vibration of the unwinding reel, resulting in unstable tension, affecting the production efficiency and product quality. Therefore, it needs to be improved. Utility Model Content

[0004] In order to facilitate the real-time adjustment of the wire harness tension, this application provides a wire harness unwinding device.

[0005] A wire harness unwinding device provided by this application adopts the following technical solutions:

[0006] A wire harness unwinding device includes a support frame, an unwinding reel, a positioning wheel, a steel belt, a connecting rod, and a tensioning assembly. The unwinding reel is rotatably connected to the support frame, and the unwinding reel is used for installing a wire harness reel; the positioning wheel is connected to the unwinding reel, the steel belt is wound around and attached to the positioning wheel, one end of the steel belt is connected to the support frame, and the other end is connected to the connecting rod; the connecting rod is used to connect the steel belt and the tensioning assembly, and the tensioning assembly is hinged to the support frame and is used for pulling the wire harness.

[0007] By adopting the above technical solutions, the wire harness reel is fixed on the unwinding reel, and the rotation of the unwinding reel can drive the continuous release of the wire harness on the wire harness reel. When the unwinding reel vibrates, the vibration acts on the steel belt and is transmitted to the tensioning assembly through the connecting rod, so that the tensioning assembly can adjust the tension of the wire harness in real time and keep it constant, effectively solving the problem of unstable wire harness tension caused by the vibration of the unwinding reel.

[0008] Preferably, it further includes an installation shell detachably connected to the support frame; the tensioning assembly includes a rotating rod, a return spring, an eccentric wheel, a swing rod and a wire pulley. The rotating rod is connected to the connecting rod and is rotatably connected to the installation shell; one end of the return spring is connected to the installation shell and the other end is connected to the rotating rod; the eccentric wheel is rotatably connected to the installation shell and abuts against the rotating rod. The swing rod is connected to the eccentric wheel. The wire pulleys are connected to both the rotating rod and the swing rod, and the wire pulleys are used for pulling and tensioning the wire harness.

[0009] By adopting the above technical solution, when the unwinding reel vibrates, the vibration will generate a force on the connecting rod, and the connecting rod drives the rotating rod to rotate, thereby changing the position of the wire pulley on the rotating rod to maintain the tension of the wire harness. At the same time, when the rotating rod rotates, it can drive the eccentric wheel to rotate, causing the swing rod to swing and changing the position of the wire pulley on the swing rod, so as to better pull and tension the wire harness.

[0010] Preferably, the installation shell is locked to the support frame by fastening bolts.

[0011] By adopting the above technical solution, when the tensioning assembly is damaged, the installation shell can be removed for maintenance.

[0012] Preferably, a plurality of the return springs are arranged in parallel, and the rotating rod is connected to each of the return springs at the same time.

[0013] By adopting the above technical solution, the multiple return springs act on the rotating rod together, which can improve the stability of the rotating rod.

[0014] Preferably, the connecting rod includes a first rod and a second rod. The first rod is arranged vertically, and both ends are used for connecting the steel pulling belt and the second rod; the second rod is arranged horizontally and forms an angle with the first rod. The second rod is used for connecting the first rod and the rotating rod, and the second rod is detachably connected to the rotating rod.

[0015] By adopting the above technical solution, when it is necessary to repair the tensioning assembly, the second rod and the rotating rod can be separated first, and then the installation shell can be removed from the support frame.

[0016] Preferably, it further includes an adjusting bolt screwed on the installation shell and connected to one end of the return spring. The adjusting bolt is used for adjusting the position of the return spring.

[0017] By adopting the above technical solution, when the rotating rod rotates, it will squeeze or stretch the return spring, and the elastic deformation generated by the return spring can be used to control the return of the rotating rod. By adjusting the bolt to change the position of the return spring relative to the mounting shell, the position of the rotating rod can be adjusted according to actual needs, improving practicability.

[0018] Preferably, it further includes a limit post, the limit post is connected to the mounting shell and is located on the rotation path of the swing rod, and the limit post is used to limit the rotation amplitude of the swing rod.

[0019] By adopting the above technical solution, the limit post can limit the maximum rotation amplitude of the swing rod, preventing the rotation amplitude of the swing rod from being too large and affecting the tension of the wire harness.

[0020] Preferably, the outer surface of the wire reel is provided with an anti-slip layer.

[0021] By adopting the above technical solution, the anti-slip layer has a large friction coefficient, which can increase the stability of the wire harness reel installed on the wire reel.

[0022] Preferably, it further includes a threaded sleeve, a threaded section is provided on the wire reel, and the threaded sleeve is screwed onto the threaded section and is used to fix the wire harness reel.

[0023] By adopting the above technical solution, after the center of the wire harness reel is sleeved on the wire reel, the threaded sleeve is tightened on the threaded section to fix the wire harness reel.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] (1) By setting the steel pull belt, the connecting rod and the tensioning assembly, when the wire reel vibrates, the vibration acts on the steel pull belt and is transmitted to the tensioning assembly through the connecting rod, enabling the tensioning assembly to adjust the tension of the wire harness in real time, keeping it constant, and realizing convenient real-time adjustment of the tension of the wire harness.

[0026] (2) By setting the adjusting bolt, the adjusting bolt can change the position of the return spring relative to the mounting shell, and thus change the position of the rotating rod.

[0027] (3) By setting the threaded sleeve, the threaded sleeve is screwed onto the wire reel, realizing the detachable of the wire harness reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the wire harness unwinding device in the embodiment of the present application;

[0029] Figure 2 is a partial structural diagram of the wire harness unwinding device in the embodiment of the present application;

[0030] Figure 3 This is a schematic structural diagram of a wire harness reel installed on a wire harness unreeling device in an embodiment of the present application.

[0031] Reference numerals: 1, support frame; 2, unreeling shaft; 3, positioning wheel; 4, steel pulling belt; 5, connecting rod; 51, first rod; 52, second rod; 6, tensioning assembly; 61, rotating rod; 62, return spring; 63, eccentric wheel; 64, swing rod; 65, wire guide wheel; 7, mounting shell; 8, limiting post; 9, adjusting bolt; 10, threaded sleeve; 11, threaded section. Detailed implementation manners

[0032] Next, the technical solutions of the present application will be described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The present application can be embodied in various different forms and is not limited to the embodiments described herein.

[0033] In the description of the present application, the reference terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented by combining this embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in a suitable manner in any one or more embodiments or examples.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "including" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation" etc. should be understood in a broad sense. For example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0036] Next, some embodiments of the present application will be described in detail in conjunction with the drawings. Without conflict, those skilled in the art can combine and combine the different embodiments or examples represented in the present application and the features of different embodiments or examples.

[0037] The embodiments of the present application disclose a wire harness unreeling device. Refer to Figure 1, The wire harness pay-off device includes a support frame 1, a pay-off reel 2, a positioning wheel 3, a steel strap 4, a connecting rod 5 and a tensioning assembly 6. The support frame 1 is fixedly placed on the ground. The pay-off reel 2 is horizontally arranged and rotatably connected to the support frame 1. The pay-off reel 2 is used for installing the wire harness reel. The wire harness reel is sleeved on the pay-off reel 2 and locked on the pay-off reel 2 through a threaded sleeve 10. A threaded section 11 is provided on the pay-off reel 2, and the threaded sleeve 10 is threadedly connected to the threaded section 11. Among them, an anti-slip layer (not shown in the figure) is also provided on the outer surface of the pay-off reel 2. The anti-slip layer is made of an anti-slip material. The anti-slip layer has a large friction coefficient, which can increase the stability of the wire harness reel installed on the pay-off reel 2 and reduce the possibility of relative rotation between the wire harness reel and the pay-off reel 2.

[0038] The positioning wheel 3 is connected to the pay-off reel 2, and the steel strap 4 is wound around and attached to the positioning wheel 3. One end of the steel strap 4 is connected to the support frame 1, and the other end is connected to the connecting rod 5. The connecting rod 5 is used to connect the steel strap 4 and the tensioning assembly 6. The tensioning assembly 6 is hinged to the support frame 1 and is used to pull the wire harness on the wire harness reel.

[0039] Specifically, referring to Figure 2 , an installation shell 7 is also detachably connected to the support frame 1. The installation shell 7 is fixed to the support frame 1 by means of fastening bolts. The tensioning assembly 6 includes a rotating rod 61, a return spring 62, an eccentric wheel 63, a swinging rod 64 and a wire guiding wheel 65. The rotating rod 61 is connected to the connecting rod 5 and is rotatably connected to the installation shell 7. In this embodiment, the connecting rod 5 includes a first rod 51 and a second rod 52. The first rod 51 is vertically arranged, and both ends are used to connect the steel strap 4 and the second rod 52. The second rod 52 is horizontally arranged and forms an angle with the first rod 51. The second rod 52 is used to connect the first rod 51 and the rotating rod 61. Among them, the second rod 52 is detachably connected to the rotating rod 61, and the second rod 52 and the rotating rod 61 are fixed by the cooperation of bolts and nuts. When the tensioning assembly 6 needs to be repaired, the second rod 52 and the rotating rod 61 can be separated first, and then the installation shell 7 can be removed from the support frame 1.

[0040] One end of the return spring 62 is connected to the installation shell 7, and the other end is connected to the rotating rod 61. As shown in the figure, the number of return springs 62 in this embodiment is two. The two return springs 62 are parallel to each other, and the rotating rod 61 is connected to both return springs 62 at the same time to improve the stability of the rotating rod 61. The eccentric wheel 63 is rotatably connected to the installation shell 7 and abuts against the rotating rod 61. The swinging rod 64 is fixedly connected to the eccentric wheel 63. Wire guiding wheels 65 are connected to both the swinging rod 64 and the rotating rod 61. The wire guiding wheels 65 are used to pull and tension the wire harness. Among them, a limiting post 8 is fixedly connected to the installation shell 7. The limiting post 8 is located on the rotation path of the swinging rod 64. The limiting post 8 is used to limit the rotation amplitude of the swinging rod 64 to prevent the rotation amplitude of the swinging rod 64 from being too large and affecting the tension of the wire harness.

[0041] Combined with Figure 3 During production, first fix the wire harness reel on the pay-off reel 2. The rotation of the pay-off reel 2 can drive the continuous release of the wire harness on the wire harness reel. When the pay-off reel 2 vibrates, the vibration acts on the steel tension belt 4 and is transmitted to the rotating rod 61 through the connecting rod 5. At this time, the rotating rod 61 rotates, thereby changing the position of the wire guide wheel 65 on the rotating rod 61 to maintain the tension of the wire harness. When the rotating rod 61 rotates, it can also drive the eccentric wheel 63 to rotate, causing the swing rod 64 to swing and changing the position of the wire guide wheel 65 on the swing rod 64, so as to better traction and tension the wire harness. At the same time, when the rotating rod 61 rotates, it squeezes or stretches the return spring 62. After the vibration received by the pay-off reel 2 disappears, the elastic deformation generated by the return spring 62 can be used to control the reset of the rotating rod 61.

[0042] In addition, an adjusting bolt 9 is also connected to the mounting shell 7. One end of the adjusting bolt 9 is screwed on the mounting shell 7 and is connected to the return spring 62. The adjusting bolt 9 is used to adjust the position of the return spring 62. By rotating the adjusting bolt 9 to change the position of the return spring 62 relative to the mounting shell 7, the position of the rotating rod 61 can be adjusted according to actual needs, improving the practicability.

[0043] The implementation principle of a wire harness pay-off device according to an embodiment of the present application is as follows: The wire harness reel is fixed on the pay-off reel 2. The rotation of the pay-off reel 2 can drive the continuous release of the wire harness on the wire harness reel. When the pay-off reel 2 vibrates, the vibration acts on the steel tension belt 4 and is transmitted to the tensioning assembly 6 through the connecting rod 5, enabling the tensioning assembly 6 to adjust the tension of the wire harness in real time and keep it constant, realizing convenient real-time adjustment of the tension of the wire harness.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A wire harness pay-off device, characterized in that, It includes a support frame (1), a wire reel (2), a positioning wheel (3), a steel strap (4), a connecting rod (5) and a tensioning assembly (6). The wire reel (2) is rotatably connected to the support frame (1), and the wire reel (2) is used for installing a wire harness reel. The positioning wheel (3) is connected to the wire reel (2), the steel strap (4) is wound around and attached to the positioning wheel (3), one end of the steel strap (4) is connected to the support frame (1), and the other end is connected to the connecting rod (5). The connecting rod (5) is used to connect the steel strap (4) and the tensioning assembly (6), and the tensioning assembly (6) is hinged to the support frame (1) and is used for pulling the wire harness.

2. The wire harness unwinding device according to claim 1, characterized in that It further includes a mounting shell (7), and the mounting shell (7) is detachably connected to the support frame (1). The tensioning assembly (6) includes a rotating rod (61), a return spring (62), an eccentric wheel (63), a swing rod (64) and a wire guiding wheel (65). The rotating rod (61) is connected to the connecting rod (5) and is rotatably connected to the mounting shell (7). One end of the return spring (62) is connected to the mounting shell (7), and the other end is connected to the rotating rod (61). The eccentric wheel (63) is rotatably connected to the mounting shell (7) and abuts against the rotating rod (61). The swing rod (64) is connected to the eccentric wheel (63). The wire guiding wheels (65) are connected to both the rotating rod (61) and the swing rod (64), and the wire guiding wheels (65) are used for pulling and tensioning the wire harness.

3. The wire harness pay-off device according to claim 2, characterized in that, The mounting shell (7) is locked to the support frame (1) by fastening bolts.

4. The wiring harness unwinding device according to claim 2, characterized in that A plurality of the return springs (62) are arranged in parallel, and the rotating rod (61) is simultaneously connected to each of the return springs (62).

5. The wire harness pay-off device according to claim 2, characterized in that, The connecting rod (5) includes a first rod (51) and a second rod (52). The first rod (51) is arranged vertically, and both ends are used for connecting the steel strap (4) and the second rod (52). The second rod (52) is arranged horizontally and forms an angle with the first rod (51). The second rod (52) is used for connecting the first rod (51) and the rotating rod (61), and the second rod (52) is detachably connected to the rotating rod (61).

6. A wire harness unwinding device according to claim 2, wherein It further includes an adjusting bolt (9), and the adjusting bolt (9) is screwed on the mounting shell (7) and is connected to one end of the return spring (62). The adjusting bolt (9) is used for adjusting the position of the return spring (62).

7. The wire harness unwinding device according to claim 2, characterized in that, It further includes a limiting post (8), and the limiting post (8) is connected to the mounting shell (7) and is located on the rotation path of the swing rod (64). The limiting post (8) is used for limiting the rotation amplitude of the swing rod (64).

8. A wire harness unwinding device according to claim 1, characterized in that, The outer surface of the wire reel (2) is provided with an anti-slip layer.

9. A wire harness pay-off device according to claim 1, characterized in that, It further includes a threaded sleeve (10). A threaded section (11) is provided on the wire reel (2), and the threaded sleeve (10) is screwed on the threaded section (11) and is used for fixing the wire harness reel.

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