Passive pay-off device

Abstract

The utility model relates to the technical field of cable processing devices, in particular to a passive pay-off device which comprises a support, a rotating shaft used for installing a cable reel is arranged on the support, a first rotating wheel is further installed on the support, a second rotating wheel is installed on the rotating shaft, and the first rotating wheel is connected with the second rotating wheel. The support is provided with a stopping structure capable of stopping the rotating shaft from rotating. When the passive pay-off device is used, the cable reel is fixed on the rotating shaft, a cable is wound according to a dotted line part mode in a figure and then is connected with a rolling machine for operation, and when the rolling machine stops operation, the stopping structure is controlled to stop the rotating shaft from rotating, so that the problem caused by the fact that the pay-off reel cannot stop at a time due to inertia is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing devices, in particular to a passive pay-off device. Background Art

[0002] During cable processing, wire payout is often necessary. Passive payout devices are commonly used in conjunction with large wire coilers. However, existing passive payout devices, due to the high-speed operation of the coiler, can cause the payout reel to stall due to inertia when the coiler stops, causing the wire to fall from the reel to the ground, resulting in a messy arrangement. When the coiler is restarted, manual work is required to organize the wire and wind it onto the payout reel. This not only increases the operator's workload but also easily causes the wire to become twisted or dirty. Utility Model Content

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a passive pay-off device to solve the above technical problems.

[0004] The technical solution of the utility model is as follows:

[0005] A passive pay-off device comprises a bracket, on which a rotating shaft for mounting a cable drum is provided, a first rotating wheel is also mounted on the bracket, a second rotating wheel is mounted on the rotating shaft, and the first rotating wheel and the second rotating wheel are connected; and a blocking structure capable of preventing the rotating shaft from rotating is provided on the bracket.

[0006] Optionally, the first rotating wheel is a first belt pulley, the second rotating wheel is a second belt pulley, and a belt is provided on the first belt pulley and the second belt pulley.

[0007] Optionally, the first rotating wheel is a first sprocket, the second rotating wheel is a second sprocket, and the first sprocket and the second sprocket are connected by a chain.

[0008] Optionally, the blocking structure is a magnetic powder brake, which is fixed on the bracket and cooperates with the first rotating wheel or rotating shaft.

[0009] Optionally, a first pay-off wheel and a second pay-off wheel are provided on one side of the rotating shaft, and the first pay-off wheel and the second pay-off wheel are both rotatably connected to the bracket, the height of the first pay-off wheel is less than the height of the rotating shaft, and the height of the second pay-off wheel is greater than the height of the first pay-off wheel.

[0010] Optionally, a third pay-off wheel is provided directly above the second pay-off wheel at a position corresponding to the second pay-off wheel, the third pay-off wheel is rotatably connected to the bracket, and the third pay-off wheel is provided close to the second pay-off wheel.

[0011] Optionally, the second pay-off wheel is fixed on the central axis, and the bracket includes a first bracket and a second bracket, the central axis is located between the first bracket and the second bracket, one end of which is rotatably connected to the first slider, and the other end of which is rotatably connected to the second slider; the first bracket is provided with a first slide groove that cooperates with the first slider, and the bottom end of the first slide groove is fixed with a first spring, and the first spring rests on the bottom surface of the first slider; the second bracket is provided with a second slide groove that cooperates with the second slider, and the bottom end of the second slide groove is fixed with a second spring, and the second spring rests on the bottom surface of the second slider; a friction wheel is provided on the central axis at a position corresponding to the belt, and in the original state, the friction wheel rests on the belt.

[0012] Optionally, the bracket includes a first bracket and a second bracket, the top of the first bracket and the second bracket are both provided with a notch, the rotating shaft passes through the notch and is located in the notch, two washers and two nuts are sleeved on the rotating shaft, and the two nuts are threadedly connected to the rotating shaft.

[0013] Optionally, one or more cross beams are fixed between the first bracket and the second bracket, with one end of the cross beam fixedly connected to the first bracket and the other end fixedly connected to the second bracket.

[0014] When the passive pay-off device of the present invention is in use, the cable reel is fixed on the rotating shaft, the cable is wound according to the dotted line part in the figure and then connected to the winding machine for operation. When the winding machine stops working, the control prevention structure prevents the rotating shaft from rotating, effectively preventing the problem caused by the pay-off reel being unable to stop for a while due to inertia. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is one of the structural diagrams of a passive pay-off device proposed in the present utility model;

[0016] Figure 2 This is the second structural diagram of a passive pay-off device proposed in the present invention;

[0017] Figure 3 A schematic diagram of an installation structure of the second pay-off wheel;

[0018] Figure 4 Schematic diagram of the fixed structure of the cable drum;

[0019] Figure 5 This is the third structural diagram of a passive line-releasing device proposed in the present invention;

[0020] In the figure: bracket 1, rotating shaft 2, magnetic powder brake 3, first pulley 4, second pulley 5, belt 6, first pay-off wheel 7, second pay-off wheel 8, third pay-off wheel 9, washer 10, nut 11, center shaft 12, first slider 13, second slider 14, first spring 15, second spring 16, friction wheel 17, cable drum 18;

[0021] The first bracket 1-1, the second bracket 1-2, the crossbeam 1-3, and the notch 1-4. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Example 1, with reference to Figure 1 The present embodiment is a passive pay-off device, comprising a bracket 1, a rotating shaft 2 for installing a cable drum is provided on the bracket, the first pulley 4 is further installed on the bracket, the second pulley 5 is installed on the rotating shaft, and a belt 6 is provided on the first pulley and the second pulley; a first pay-off wheel 7 and a second pay-off wheel 8 are provided on one side of the rotating shaft, and the first pay-off wheel and the second pay-off wheel are both rotatably connected to the bracket. The height of the first pay-off wheel is less than the height of the rotating shaft, and the height of the second pay-off wheel is greater than the height of the first pay-off wheel; a third pay-off wheel 9 is provided directly above the second pay-off wheel at a position corresponding to the second pay-off wheel, the third pay-off wheel is rotatably connected to the bracket, and the third pay-off wheel is arranged close to the second pay-off wheel to prevent the cable from moving upward and detaching from the second pay-off wheel. In this embodiment, the first pay-off wheel, the second pay-off wheel and the third pay-off wheel can use structures such as pulleys or rotating shafts, and the bracket is equipped with a magnetic powder brake 3 that cooperates with the first pulley.

[0024] When the above-mentioned passive pay-off device is in use, the cable drum 18 is fixed on the rotating shaft, the cable is wound according to the dotted line part in the figure and then connected to the winder for operation. When the winder stops working, the magnetic powder brake is controlled to lock the first pulley.

[0025] It should be noted that the above-mentioned magnetic powder brake can also be cooperated with the rotating shaft. The installation of the magnetic powder brake is well known to those skilled in the art and is not specifically limited here; the above-mentioned first pulley and second pulley can also be replaced by sprockets, and the two sprockets are connected by a chain accordingly.

[0026] As an implementation method: see Figure 1 、 Figure 3 and Figure 4The bracket includes a first bracket 1-1 and a second bracket 1-2. The tops of the first bracket and the second bracket are both provided with a notch 1-4. The rotating shaft passes through the notch and is located inside the notch. Two washers 10 and two nuts 11 are sleeved on the rotating shaft, and the two nuts are threadedly connected to the rotating shaft. This makes it easy to take the rotating shaft out and install the cable reel. Of course, in actual production, blocking blocks can be installed near the ends of the rotating shaft to prevent the rotating shaft from moving laterally along the notch. The length of the rotating shaft can also be set to be greater than the distance between the two notches. In order to increase the firmness of the bracket, see Figure 3 One or more beams 1-3 are fixed between the first bracket and the second bracket, one end of the beam is fixedly connected to the first bracket, and the other end is fixedly connected to the second bracket.

[0027] Example 2, reference Figure 2-Figure 4 , this embodiment is a passive pay-off device, comprising a bracket 1, a rotating shaft 2 for mounting a cable drum is provided on the bracket, a first pulley 4 is further installed on the bracket, a second pulley 5 is installed on the rotating shaft, and a belt 6 is provided on the first pulley and the second pulley; a first pay-off wheel 7 and a second pay-off wheel 8 are provided on one side of the rotating shaft, the first pay-off wheel and the second pay-off wheel are both rotatably connected to the bracket, the height of the first pay-off wheel is less than the height of the rotating shaft, and the height of the second pay-off wheel is greater than the height of the first pay-off wheel; the second pay-off wheel is fixed on the central axis 12, and the bracket comprises a first bracket 1-1 and a second bracket 1- 2. The central axis is located between the first bracket and the second bracket, with one end rotatably connected to the first slider 13 and the other end rotatably connected to the second slider 14; the first bracket is provided with a first slide groove that cooperates with the first slider, and a first spring 15 is fixed to the bottom end of the first slide groove, and the first spring rests on the bottom surface of the first slider; the second bracket is provided with a second slide groove that cooperates with the second slider, and a second spring 16 is fixed to the bottom end of the second slide groove, and the second spring rests on the bottom surface of the second slider; a friction wheel 17 is provided on the central axis at a position corresponding to the belt, and in the original state, the friction wheel rests on the belt.

[0028] When the above-mentioned passive pay-off device is in use, the cable drum 18 is fixed on the rotating shaft, the cable is wound according to the dotted line part in the figure and then connected to the winding machine for operation. During operation, the winding machine pulls the cable to squeeze the second pay-off wheel and the friction wheel downward. When the machine is stopped, once the cable drum continues to rotate due to inertia, the friction wheel returns to its original state under the action of the corresponding spring and presses against the belt to limit the rotation of the cable drum.

[0029] It should be noted that the first pulley and the second pulley mentioned above can also be replaced by sprockets, and the two sprockets are connected by a chain accordingly.

[0030] Of course, the blocking structure in the above embodiment 1 and the blocking structure in the embodiment 2 can be used together. Figure 5 .

[0031] The above description is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A passive pay-off device, comprising a bracket (1), on which a rotating shaft (2) for mounting a cable drum is provided, characterized in that: A first rotating wheel is also installed on the bracket, a second rotating wheel is installed on the rotating shaft, and the first rotating wheel and the second rotating wheel are connected; a blocking structure capable of preventing the rotating shaft from rotating is provided on the bracket.

2. A passive pay-off device according to claim 1, characterized in that: The first rotating wheel is a first belt pulley (4), the second rotating wheel is a second belt pulley (5), and a belt (6) is provided on the first belt pulley and the second belt pulley.

3. A passive pay-off device according to claim 1, characterized in that: The first rotating wheel is a first sprocket, the second rotating wheel is a second sprocket, and the first sprocket and the second sprocket are connected by a chain.

4. A passive pay-off device according to any one of claims 1 to 3, characterized in that: The blocking structure is a magnetic powder brake (3), which is fixed on the bracket and cooperates with the first rotating wheel or the rotating shaft.

5. A passive pay-off device according to claim 2, characterized in that: A first pay-off wheel (7) and a second pay-off wheel (8) are provided on one side of the rotating shaft. The first pay-off wheel and the second pay-off wheel are both rotatably connected to the bracket. The height of the first pay-off wheel is less than the height of the rotating shaft, and the height of the second pay-off wheel is greater than the height of the first pay-off wheel.

6. A passive pay-off device according to claim 5, characterized in that: A third pay-off wheel (9) is provided just above the second pay-off wheel at a position corresponding to the second pay-off wheel. The third pay-off wheel is rotatably connected to the bracket and is provided close to the second pay-off wheel.

7. A passive pay-off device according to claim 5, characterized in that: The second pay-off wheel is fixed on the central shaft (12); the bracket comprises a first bracket (1-1) and a second bracket (1-2); the central shaft is located between the first bracket and the second bracket, one end of the central shaft is rotatably connected to the first slider (13), and the other end of the central shaft is rotatably connected to the second slider (14); The first bracket is provided with a first slide groove that cooperates with the first slider, and a first spring (15) is fixed to the bottom end of the first slide groove, and the first spring abuts against the bottom surface of the first slider; the second bracket is provided with a second slide groove that cooperates with the second slider, and a second spring (16) is fixed to the bottom end of the second slide groove, and the second spring abuts against the bottom surface of the second slider; A friction wheel (17) is provided on the central shaft at a position corresponding to the belt, and in an original state, the friction wheel abuts against the belt.

8. A passive pay-off device according to any one of claims 1 to 3, characterized in that: The bracket comprises a first bracket (1-1) and a second bracket (1-2), the top ends of the first bracket and the second bracket are both provided with a notch (1-4), the rotating shaft passes through the notch and is located within the notch, two washers (10) and two nuts (11) are sleeved on the rotating shaft, and the two nuts are threadedly connected to the rotating shaft.

9. A passive pay-off device according to claim 8, characterized in that: One or more crossbeams (1-3) are fixed between the first bracket and the second bracket, one end of the crossbeam is fixedly connected to the first bracket, and the other end is fixedly connected to the second bracket.

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