Cable winding and unwinding device

Abstract

The invention belongs to the technical field of cable equipment, and discloses a cable winding and unwinding device. The cable take-up and pay-off device comprises a rack, a first take-up and pay-off mechanism, a metering assembly and a metering assembly, wherein a rotating shaft of a wire spool is rotationally connected to the rack; the first take-up and pay-off mechanism is fixed to the rack and can drive the cable to move so as to release or take up the cable. The metering assembly is fixed to the rack, located between the wire spool and the first winding and unwinding mechanism and capable of detecting the moving distance of the cable. The correcting assembly comprises a supporting plate and a loading wheel, the supporting plate is fixed to the rack and is arranged adjacent to one side of the metering assembly, and the loading wheel is slidably connected to the supporting plate and can slide in the gravity direction to abut against the cable, so that the actual release length of the cable can be the same as the required specific length of the cable; therefore, a worker can cut out the cable with the required specific length.

Description

Technical Field

[0001] The present invention relates to the technical field of cable equipment, and in particular to a cable retracting and releasing device. Background Art

[0002] Cables are used as electrical energy transmission conductors, and workers often need to use cables of specific lengths for electrical construction work.

[0003] The cable is wound on a reel in a roll. In the prior art, a traction device is usually used to pull the cable by pulling the end of the cable reel, and a motor coaxially connected to the cable reel drives the reel to rotate to release the cable, and then a metering device is used to measure the released length of the cable. When the released length of the cable is the same as the required length of the specific cable, the traction device stops suddenly, and the staff cuts the cable to obtain the required specific length of the cable. When releasing the cable, the following situations usually occur, which will cause the actual released length of the cable to be unable to be accurately detected by the metering device: 1) The traction device stops suddenly, and the cable reel continues to rotate due to inertia to release the cable, resulting in the cable being unable to be tensioned, and the metering device cannot accurately detect the released length of the cable; 2) The staff's work error causes the released length of the cable to exceed the required specific length, and the traction device rotates to recover part of the cable, while the cable reel does not rotate to recover the above part of the cable, resulting in the cable being unable to be tensioned, and the metering device cannot accurately detect the released length of the cable.

[0004] Therefore, a cable retracting device is urgently needed to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a cable retracting and releasing device, which can make the actual released length of the cable the same as the required specific length of the cable, so that the staff can intercept the cable of the required specific length.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A cable retracting device is provided, wherein one end of the cable is fixedly connected to the rotating shaft of the winding drum, the cable is wound on the winding drum, and a first driving member is coaxially connected to the rotating shaft of the winding drum to drive the winding drum to rotate. The cable retracting device is characterized in that it comprises:

[0008] A frame, on which the rotating shaft of the winding drum is rotatably connected;

[0009] A first retractable mechanism, the first retractable mechanism is fixed on the frame, and the first retractable mechanism can drive the cable to move to release or retract the cable;

[0010] A metering component is fixed on the frame and is located between the winding drum and the first retractable mechanism. The metering component can detect the moving distance of the cable;

[0011] The correction component includes a support plate and a load-bearing wheel. The support plate is fixed on the frame and is arranged adjacent to one side of the metering component. The load-bearing wheel is slidably connected to the support plate and can slide along the direction of gravity to press the cable.

[0012] Preferably, the first retracting and releasing mechanism includes a pulley assembly and a second driving member, the pulley assembly includes a driving wheel and an extrusion wheel, the rotating shaft of the driving wheel is rotatably fixed on the frame, the output end of the second driving member is coaxially connected to the rotating shaft of the driving wheel and can drive the driving wheel to rotate and drive the cable to move to release or recycle the cable, and the outer wheel surface of the driving wheel and the outer wheel surface of the extrusion wheel can contact each other to squeeze the cable.

[0013] Preferably, the pulley assembly further comprises an elastic member, and the rotating shaft of the driving wheel and the rotating shaft of the extrusion wheel are elastically connected via the elastic member.

[0014] Preferably, at least two pulley assemblies are spaced apart along the moving direction of the cable, and the rotating shaft of the driving wheel of only one pulley assembly is coaxially connected to the second driving member.

[0015] Preferably, the support plate has a slide rail extending along the direction of gravity, the road wheel has a slider matching the slide rail, and the slide rail is slidably connected to the slider.

[0016] Preferably, the correction assembly also includes a guide member, which is arranged on the support plate, and the two guide members are respectively and adjacently arranged on both sides of the road wheel. The guide member has a guide hole whose axis is parallel to the direction of gravity, and the cable passes through the guide hole when moving.

[0017] Preferably, the metering assembly includes a metering wheel and a counter, the rotating shaft of the metering wheel is rotatably connected to the frame, the movement of the cable can drive the metering wheel to rotate, and the counter is fixedly connected to the metering wheel, and the counter can count the number of rotations of the metering wheel.

[0018] Preferably, the cable is wound around the metering wheel for one circle, and the cable entry end relative to the metering wheel and the cable exit end relative to the metering wheel are staggered.

[0019] Preferably, the cable retracting device further comprises a tensioning wheel, a rotating shaft of the tensioning wheel is rotatably connected to the frame, the tensioning wheel is arranged on one side adjacent to the winding drum, and the tensioning wheel can tension the cable.

[0020] Preferably, the cable retracting device comprises a second retracting mechanism, which is fixed to the frame and located between the winding drum and the metering assembly, and the second retracting mechanism can drive the cable to move.

[0021] Beneficial effects of the present invention:

[0022] The cable retracting device provided in the present embodiment is fixedly connected to the rotating shaft of the winding drum by one end of the cable, the cable is wound on the winding drum, and the first driving member is coaxially connected to the rotating shaft of the winding drum and can drive the winding drum to rotate to release the cable, and the first retracting mechanism drives the cable to move to release or recycle the cable, so that the cable can be released smoothly to prevent the cable from being directly broken due to excessive tension; the moving distance of the cable is detected by the metering component to obtain the released length of the cable; the road wheel slides in the direction of gravity to press the cable, so that when the cable is loose and the metering component cannot accurately measure the moving distance of the cable, the road wheel slides downward to press the cable, so that the loose cable continues to be tensioned, so as to ensure the accuracy of the cable displacement distance measured by the metering component, so that the actual released length of the cable is the same as the required specific length of the cable, so as to ensure that the staff can intercept the required specific length of cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the cable retracting and releasing device provided by the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the correction assembly provided by the present invention;

[0025] Figure 3 It is a structural schematic diagram of the metering component provided by the present invention.

[0026] In the figure:

[0027] 100, cable; 101, incoming line terminal; 102, outgoing line terminal; 200, winding reel;

[0028] 1. Frame;

[0029] 2. First retractable and retractable mechanism; 21. Pulley assembly; 211. Driving wheel; 212. Extruding wheel; 213. Elastic member; 22. Second driving member;

[0030] 3. Metering assembly; 31. Metering wheel; 32. Counter;

[0031] 4. Correction assembly; 41. Support plate; 411. Slide rail; 42. Road wheel; 421. Sliding block; 43. Guide member; 431. Guide hole;

[0032] 5. Tensioner;

[0033] 6. The second retracting and extending mechanism. DETAILED DESCRIPTION

[0034] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0037] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0038] The retractable device stops suddenly, but the cable drum continues to rotate to release the cable, resulting in the cable not being able to be tensioned, and the metering device cannot accurately detect the released length of the cable; the staff's work error causes the released length of the cable to exceed the required specific length, and the retractable device recycles part of the cable, but the cable drum does not rotate to recycle the above part of the cable, resulting in the cable not being able to be tensioned, and the metering device cannot accurately detect the released length of the cable. Therefore, keeping the cable in a tensioned state at all times is the key to the metering device accurately detecting the released length of the cable. Figures 1 to 3 The cable retracting and releasing device provided in this embodiment is introduced in detail.

[0039] Figure 1FIG. 2 shows a schematic diagram of the structure of the cable retracting device provided in this embodiment. Figure 1 As shown, the cable retracting device provided in this embodiment has one end of the cable 100 fixedly connected to the rotating shaft of the winding drum 200, the cable 100 is wound on the winding drum 200, and the first driving member is coaxially connected to the rotating shaft of the winding drum 200 and can drive the winding drum 200 to rotate; the cable retracting device includes a frame 1, a first retracting mechanism 2, a metering component 3 and a correction component 4, and the rotating shaft of the winding drum 200 is rotatably connected to the frame 1. The first retractable mechanism 2 is fixed on the frame 1, and the first retractable mechanism 2 can drive the cable 100 to move to release or recycle the cable 100; the metering component 3 is fixed on the frame 1, and the metering component 3 is located between the winding drum 200 and the first retractable mechanism 2, and the metering component 3 can detect the moving distance of the cable 100; the correction component 4 includes a support plate 41 and a road wheel 42, the support plate 41 is fixed on the frame 1, and is arranged adjacent to one side of the metering component 3, and the road wheel 42 is slidably connected to the support plate 41 and can slide along the gravity direction to press the cable 100. It is worth noting that the first retractable mechanism 2 can drive the cable 100 to move and pull the cable 100 forward, and the first driving member can drive the winding drum 200 to rotate to release the cable 100, and the cable 100 is pulled forward and then released, so that the cable 100 can be released smoothly, preventing the cable 100 from being directly broken by being only pulled and subjected to excessive tension.

[0040] The cable retracting device provided in this embodiment is characterized in that one end of the cable 100 is fixedly connected to the rotating shaft of the winding drum 200, the cable 100 is wound on the winding drum 200, the first driving member is coaxially connected to the rotating shaft of the winding drum 200 and can drive the winding drum 200 to rotate to release the cable 100, and the first retracting mechanism 2 drives the cable 100 to move to release or recycle the cable 100, so that the cable 100 can be released smoothly to prevent the cable 100 from being directly broken due to excessive tension; the metering component 3 is used to detect the moving distance of the cable 100, so as to The released length of the cable 100 is known; the road wheel 42 slides in the direction of gravity to press the cable 100, so that when the cable 100 is loose and the metering component 3 cannot accurately measure the moving distance of the cable 100, the road wheel 42 slides downward to press the cable 100, so that the loosened cable 100 continues to be tensioned, so as to ensure the accuracy of the displacement distance of the cable 100 measured by the metering component 3, so that the actual released length of the cable 100 is the same as the required specific length of the cable 100, so as to ensure that the staff can intercept the required specific length of the cable 100.

[0041] The cable core of the cable 100 needs to be wrapped in an insulating layer to ensure that the cable 100 does not leak electricity when in use. However, after the cable 100 is wound on the winding drum 200 for a long time, the insulating layer will undergo plastic deformation, causing the cable 100 to bend and have a large stress. In order to correct the outer contour of the cable 100 and release the stress of the cable 100, continue as follows Figure 1 As shown, the first retractable mechanism 2 includes a pulley assembly 21 and a second driving member 22, the pulley assembly 21 includes a driving wheel 211 and an extruding wheel 212, the rotating shaft of the driving wheel 211 is rotatably fixed on the frame 1, the output end of the second driving member 22 is coaxially connected to the rotating shaft of the driving wheel 211 and can drive the driving wheel 211 to rotate and drive the cable 100 to move to release or recycle the cable 100, the outer wheel surface of the driving wheel 211 and the outer wheel surface of the extruding wheel 212 contact each other to squeeze the cable 100, thereby correcting the outer contour of the cable 100, straightening the bent cable 100, and releasing stress in the process of correcting the outer contour of the cable 100.

[0042] Preferably, the pulley assembly 21 further includes an elastic member 213, and the rotating shaft of the driving wheel 211 and the rotating shaft of the extrusion wheel 212 are elastically connected through the elastic member 213. When the outer wheel surface of the driving wheel 211 and the outer wheel surface of the extrusion wheel 212 collide with each other and roll the cable 100, the elastic member 213 is in a stretched state. When the elastic member 213 is in a normal state, the outer wheel surface of the driving wheel 211 and the outer wheel surface of the extrusion wheel 212 no longer collide with each other, so that the cable 100 only bears the extrusion force of the elastic force generated by the elastic member 213 to restore the normal state, preventing the cable 100 from being cut by excessive extrusion force. It should be noted that the extrusion force borne by the cable 100 can be adjusted by replacing elastic members 213 of different specifications, preventing the cable 100 from being broken due to excessive extrusion force.

[0043] In some embodiments, at least two pulley assemblies 21 are spaced apart along the moving direction of the cable 100, so that the cable 100 can withstand multiple squeezing during the movement, thereby better correcting the outer shape of the cable 100. The rotating shaft of the driving wheel 211 of only one pulley assembly 21 is coaxially connected to the second driving member 22, so that multiple second driving members 22 provide tension at the same time, resulting in excessive tension on the cable 100, causing the cable 100 to break.

[0044] Continue as Figure 1 As shown, the support plate 41 has a slide rail 411 extending in the direction of gravity, and the road wheel 42 has a slider 421 matching the slide rail 411. The slide rail 411 is slidably connected with the slider 421, so as to guide the moving direction of the slider 421, thereby ensuring the stability of the sliding of the road wheel 42, so as to ensure that the road wheel 42 can press and tension the cable 100. Optionally, the slide rail 411 is a T-slot, a trapezoidal slot or a linear rail.

[0045] Figure 2 FIG. 4 is a schematic diagram showing the structure of the correction component 4 provided in this embodiment. Figure 1 to Figure 2 As shown, preferably, the correction component 4 also includes a guide member 43, which is arranged on the support plate 41, and the two guide members 43 are respectively and adjacently arranged on both sides of the road wheel 42, and the guide member 43 has a guide hole 431 whose axis is parallel to the direction of gravity. The cable 100 passes through the guide hole 431 when moving, thereby ensuring that the cable 100 is pressed and contacted by the road wheel 42. The angle of contact between the cable 100 and the road wheel 42 is 180°, thereby improving the pressing effect of the road wheel 42 and preventing the cable 100 from loosening.

[0046] Continue as Figure 1 As shown, the cable retracting device also includes a tensioning wheel 5, the rotating shaft of the tensioning wheel 5 is rotatably connected to the frame 1, and the tensioning wheel 5 is arranged on the adjacent side of the winding drum 200, so that the cable 100 is first tensioned by the tensioning wheel 5 before passing through the metering component 3, thereby improving the accuracy of the metering component 3 in detecting the moving distance of the cable 100.

[0047] In some embodiments, the cable retracting device includes a second retracting mechanism 6, which is fixed to the frame 1 and located between the winding reel 200 and the metering component 3. The second retracting mechanism 6 can drive the cable 100 to move, thereby guiding the movement direction of the cable 100. It is worth noting that the specific structure of the second retracting mechanism 6 is the same as that of the first retracting mechanism 2, and will not be repeated here.

[0048] Figure 3 FIG. 3 shows a schematic diagram of the structure of the metering component 3 provided in this embodiment. Figure 1 and Figure 3 As shown, the metering assembly 3 includes a metering wheel 31 and a counter 32. The rotating shaft of the metering wheel 31 is rotatably connected to the frame 1. The movement of the cable 100 can drive the metering wheel 31 to rotate. The counter 32 is fixedly connected to the metering wheel 31. The counter 32 can count the number of rotations of the metering wheel 31 to calculate the actual movement distance of the cable 100. It is worth noting that the counter 32 is a photoelectric gate, which can detect the number of rotations of the metering wheel 31, and the outer diameter of the metering wheel 31 is fixed, so that the release length of the cable 100 can be calculated, and when the actual release length of the cable 100 is equal to the length of the cable 100 required by the staff, the first retracting mechanism 2 no longer drives the cable 100 to move, and the staff intercepts the cable 100 to obtain the cable 100 of the required specific length.

[0049] Continue as Figure 1 and Figure 3As shown, the cable 100 is wound around the metering wheel 31 for one circle, and the line-entry end 101 of the cable 100 relative to the metering wheel 31 and the line-outlet end 102 of the cable 100 relative to the metering wheel 31 are staggered, thereby increasing the contact area between the cable 100 and the metering wheel 31, preventing slippage from occurring and causing the rotation distance of the outer diameter of the metering wheel 31 to be inconsistent with the actual release length of the cable 100, thereby improving the detection accuracy of the metering component 3 and preventing the line-entry end 101 of the cable 100 relative to the metering wheel 31 and the line-outlet end 102 of the cable 100 relative to the metering wheel 31 from interfering with each other when the cable 100 passes through the metering wheel 31, resulting in the cable 100 being unable to move normally.

[0050] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A cable retracting device, wherein one end of a cable (100) is fixedly connected to a rotating shaft of a cable reel (200), the cable (100) is wound around the cable reel (200), and a first driving member is coaxially connected to the rotating shaft of the cable reel (200) and can drive the cable reel (200) to rotate, characterized in that: The cable retracting and releasing device comprises: A frame (1), wherein the rotating shaft of the winding drum (200) is rotatably connected to the frame (1); A first retractable mechanism (2), the first retractable mechanism (2) being fixed on the frame (1), and the first retractable mechanism (2) being capable of driving the cable (100) to move so as to release or retract the cable (100); a metering component (3), the metering component (3) being fixed on the frame (1), the metering component (3) being located between the cable winding reel (200) and the first retracting and releasing mechanism (2), and the metering component (3) being capable of detecting a moving distance of the cable (100); A correction component (4), the correction component (4) comprising a support plate (41) and a road wheel (42), the support plate (41) being fixed on the frame (1) and being arranged adjacent to one side of the metering component (3), the road wheel (42) being slidably connected to the support plate (41) and being able to slide along the direction of gravity to press against the cable (100).

2. The cable retracting device according to claim 1, characterized in that: The first retractable mechanism (2) comprises a pulley assembly (21) and a second driving member (22), the pulley assembly (21) comprising a driving wheel (211) and a squeezing wheel (212), the rotating shaft of the driving wheel (211) being rotatably fixed on the frame (1), the output end of the second driving member (22) being coaxially connected with the rotating shaft of the driving wheel (211) and being able to drive the driving wheel (211) to rotate and drive the cable (100) to move so as to release or recycle the cable (100), the outer wheel surface of the driving wheel (211) and the outer wheel surface of the squeezing wheel (212) being able to contact each other and squeeze the cable (100).

3. The cable retracting device according to claim 2, characterized in that: The pulley assembly (21) further comprises an elastic member (213), and the rotating shaft of the driving wheel (211) and the rotating shaft of the extrusion wheel (212) are elastically connected via the elastic member (213).

4. The cable retracting device according to claim 2, characterized in that: At least two pulley assemblies (21) are arranged at intervals along the moving direction of the cable (100), and the rotating shaft of the driving wheel (211) of only one of the pulley assemblies (21) is coaxially connected to the second driving member (22).

5. The cable retracting device according to claim 1, characterized in that: The support plate (41) has a slide rail (411) extending along the gravity direction, the road wheel (42) has a slider (421) matching the slide rail (411), and the slide rail (411) is slidably connected to the slider (421).

6. The cable retracting device according to claim 5, characterized in that: The correction component (4) also includes a guide member (43), wherein the guide member (43) is arranged on the support plate (41), and two guide members (43) are respectively and adjacently arranged on both sides of the road wheel (42), and the guide member (43) has a guide hole (431) whose axis is parallel to the direction of gravity, and the cable (100) passes through the guide hole (431) when moving.

7. The cable retracting device according to claim 1, characterized in that: The metering assembly (3) comprises a metering wheel (31) and a counter (32); the rotating shaft of the metering wheel (31) is rotatably connected to the frame (1); the movement of the cable (100) can drive the metering wheel (31) to rotate; the counter (32) is fixedly connected to the metering wheel (31); and the counter (32) can count the number of rotations of the metering wheel (31).

8. The cable retracting device according to claim 7, characterized in that: The cable (100) is wound around the metering wheel (31) for one turn, and an inlet end (101) of the cable (100) relative to the metering wheel (31) and an outlet end (102) of the cable (100) relative to the metering wheel (31) are staggered.

9. The cable retracting device according to claim 1, characterized in that: The cable retracting device further comprises a tensioning wheel (5), the rotating shaft of which is rotatably connected to the frame (1), and the tensioning wheel (5) is arranged on a side adjacent to the winding drum (200), and the tensioning wheel (5) is capable of tensioning the cable (100).

10. The cable retracting device according to any one of claims 1 to 9, characterized in that: The cable retracting device comprises a second retracting mechanism (6), wherein the second retracting mechanism (6) is fixed to the frame (1) and is located between the winding drum (200) and the metering component (3), and the second retracting mechanism (6) can drive the cable (100) to move.

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