Automatic cable pay-off rack

Abstract

The utility model relates to a pay-off rack, in particular to an automatic pay-off rack of a cable, which comprises a pay-off rack, a fixed frame, a passing roller, an adjusting screw rod, an extension frame and a compression roller, the fixed frame is U-shaped, a groove is arranged in the fixed frame, the adjusting screw rod is rotatably arranged in the fixed frame, the end part of the passing roller is rotatably connected with a sliding block, and the extension frame is connected with the compression roller. The sliding block is connected to the adjusting screw rod through threads and connected with an extending frame, and the pressing roller is rotationally connected to the end of the extending frame. The cable guiding device is provided with the passing roller and the pressing roller, after being preliminarily positioned and limited by the two rotating rollers, a cable crosses the passing roller and then penetrates through the lower portion of the pressing roller, the passing roller and the pressing roller are matched to guide the cable, the stress influence is effectively reduced, the cable guiding device can adapt to cables of different specifications, the cable can be accurately limited and guided, and the cable guiding device is convenient to use. And the take-up and pay-off quality of the cable is improved.

Description

Technical Field

[0001] The utility model relates to a wire pay-off rack, in particular to an automatic wire pay-off rack for cables. Background Art

[0002] Automatic pay-offs for cables play a vital role in cable laying operations. However, some simple-design automatic pay-offs, especially models equipped with only two rollers, often have significant limitations.

[0003] The core structure of this simple automatic pay-off rack is composed of only two rollers. Although this design is simple and direct, it exposes many problems in actual application. First, since there are only two rollers as support points, the cable cannot be effectively limited and guided during the pay-off process, and it is easy to deviate and bend, thus affecting the laying quality of the cable.

[0004] Secondly, the design of the drum is often not fully adapted to cables of different specifications and materials, which may lead to mismatch between the cable and the drum during the laying process. When the cable slides or rolls on the drum, the cable will be subjected to greater stress due to friction and uneven contact surface. Long-term pulling and stress accumulation can easily cause the cable to break, posing a great safety hazard to the cable laying work.

[0005] More seriously, when the cable is subjected to excessive stress on the drum, it will not only affect the performance and service life of the cable itself, but may also damage the cable laying equipment. The cable breakage caused by such excessive stress will not only increase the cost of repairing and replacing the cable, but also affect the progress and quality of the entire cable laying project.

[0006] The utility model provides an automatic pay-off stand for cables with improved guiding and pulling capabilities. Utility Model Content

[0007] In order to overcome the shortcomings of the existing pay-off stand using two rollers, which is too simple and not only cannot guide and limit the cable but also easily causes the cable to break, the utility model provides an automatic pay-off stand for the cable.

[0008] The technical implementation scheme of the utility model is: an automatic pay-off frame for cables, including a pay-off frame, a fixed frame, a roller, an adjusting screw, an extension frame and a pressure roller, the fixed frame is U-shaped, a groove is opened in the fixed frame, an adjusting screw is rotatably arranged in the fixed frame, a slider is rotatably connected to the end of the roller, the slider is connected to the adjusting screw through a thread, the slider is connected to the extension frame, and the pressure roller is rotatably connected to the end of the extension frame.

[0009] Optionally, the pay-off frame is equipped with two rollers for pre-guiding and positioning the cables.

[0010] Optionally, a limit rod is provided in the extension frame, and connecting blocks are connected to both ends of the pressure roller. The connecting blocks are slidably sleeved on the limit rod, and a return spring is connected between the connecting block and the extension frame.

[0011] Optionally, the outer portion of the roller is covered with a foam pad.

[0012] Optionally, a handle is provided at the end of the adjusting screw, and the handle cover is provided with an anti-slip pad.

[0013] Optionally, the extension frame is symmetrically fixed with a guide plate.

[0014] Optionally, the guide plate is located at a corresponding position of the pressure roller.

[0015] Optionally, a scale is provided on the side of the fixing frame, and the scale uses the extension frame as a pointer.

[0016] The utility model has the following advantages: a passing roller and a pressure roller are provided, and after the cable is initially positioned and limited by the two rotating rollers, the cable will pass over the passing roller and then pass under the pressure roller, and the passing roller and the pressure roller cooperate to guide the cable, effectively reducing the influence of stress. The device can not only adapt to cables of different specifications, but also can accurately limit and guide the cables, thereby improving the quality of cable retraction and release. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the adjusting screw rod, the roller and the fixing frame of the utility model.

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the pressing roller, the return spring and the limit rod of the utility model.

[0020] The meanings of the reference numerals in the figure are: 1: pay-off frame, 2: fixing frame, 3: groove, 4: passing roller, 5: adjusting screw, 6: extension frame, 7: pressure roller, 8: limiting rod, 9: reset spring, 10: foam pad, 11: anti-slip pad, 12: guide plate, 13: scale. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail with reference to the accompanying drawings. It is hereby stated that the directional words such as up, down, left, right, front, back, inside, outside, etc. that appear or will appear in the text of the utility model are only based on the accompanying drawings of the utility model, and are not specific limitations of the utility model.

[0022] Embodiment: An automatic pay-off stand for cables, such as Figure 1-Figure 3As shown, the pay-off frame 1 includes a base, a motor, a turntable and a rotating shaft. The motor is fixed in the base, and the motor output shaft is connected to the turntable. The middle of the turntable is provided with a rotating shaft. The pay-off frame 1 also includes a fixed frame 2, a roller 4, an adjusting screw 5, an extension frame 6 and a pressure roller 7. The fixed frame 2 is U-shaped, and a groove 3 is provided in the fixed frame 2. An adjusting screw 5 is rotatably provided in the fixed frame 2. A handle is provided at the end of the adjusting screw 5. The handle cover is provided with an anti-slip pad 11 to improve the grip comfort of the staff. A slider is rotatably connected to the end of the roller 4, and the slider is connected to the adjusting screw 5 by a thread. The slider is connected to the extension frame 6. A foam pad 10 is provided on the outside of the roller 4. The foam pad 10 can contact the cable, which not only improves the protection of the cable, but also increases the friction coefficient between the cable and the roller 4, thereby improving the passability of the cable. The pressure roller 7 is rotatably connected to the end of the extension frame 6.

[0023] like Figure 1 As shown, the pay-off frame 1 is equipped with two rollers for pre-guiding and positioning the cables, and the rollers are located between the fixed frame 2 and the pay-off frame 1 .

[0024] like Figure 1 and Figure 2 As shown, a limiting rod 8 is provided in the extension frame 6, and connecting blocks are connected at both ends of the pressure roller 7. The connecting blocks are slidably sleeved on the limiting rod 8, and a return spring 9 is connected between the connecting block and the extension frame 6. When the cable passes between the roller 4 and the pressure roller 7, the pressure roller can slide according to the diameter of the cable, so as to fit the cable to limit it.

[0025] like Figure 1 As shown, the extension frame 6 is symmetrically fixed with a guide plate 12, and the guide plate 12 is located at a corresponding position of the pressure roller 7. The guide plate 12 can effectively limit the passing cables to prevent the cables from deviating.

[0026] like Figure 1 As shown, a scale 13 is provided on the side of the fixed frame 2. The scale 13 uses the extension frame 6 as a pointer. The height of the roller 4 is adjusted by rotating the adjusting screw 5. The extension frame 6 and the pressure roller 7 move synchronously with the roller 4. The moving distance can be adjusted by the scale 13, so as to make instant adjustments according to the passing cables.

[0027] Working principle: The fixed frame 2 is placed between two rollers and the pay-off frame 1. The pay-off frame 1 is composed of a base, a motor, a turntable and a rotating shaft. The motor is fixed in the base, and the motor output shaft is connected to the turntable. A rotating shaft is arranged in the middle of the turntable. The cable passes between the two rollers, and then is limited and guided by the roller 4. The cable passes through the pressure roller 7 and is finally wound on the rotating shaft. The motor is turned on to drive the turntable to rotate, so that the cable can be rolled up. Because the roller and the roller 4 are arranged vertically, the two can accurately position and guide the cable, that is, the cable is preferentially introduced by the roller, and the height of the roller 4 is adjusted by rotating the adjusting screw 5. The extension frame 6 and the pressure roller 7 move synchronously with the roller 4. After the cable passes over the roller 4, it passes under the pressure roller 7. The roller 4 and the pressure roller 7 cooperate to guide the cable, which effectively reduces the stress effect. Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain rather than to limit the present invention, and the scope of protection is defined by the contents of the claims.

Claims

1. An automatic pay-off stand for cables, comprising a pay-off stand (1), characterized in that: The invention also comprises a fixed frame (2), a roller (4), an adjusting screw (5), an extension frame (6) and a pressure roller (7). A groove (3) is provided in the fixed frame (2). An adjusting screw (5) is rotatably arranged in the fixed frame (2). A slider is rotatably connected to the end of the roller (4). The slider is connected to the adjusting screw (5) by a thread. The slider is connected to the extension frame (6). The pressure roller (7) is rotatably connected to the end of the extension frame (6). The cable is guided by the roller (4) and then passes under the pressure roller (7). Finally, the cable is wound by the pay-off frame (1).

2. The automatic cable pay-off stand according to claim 1, characterized in that: The pay-off frame (1) is equipped with two rollers for pre-guiding and positioning the cables.

3. The automatic cable pay-off stand according to claim 2, characterized in that: A limit rod (8) is arranged in the extension frame (6), and connecting blocks are connected to both ends of the pressure roller (7). The connecting blocks are slidably sleeved on the limit rod (8), and a return spring (9) is connected between the connecting block and the extension frame (6).

4. The automatic cable pay-off stand according to claim 3, characterized in that: The outer portion of the roller (4) is covered with a foam pad (10).

5. The automatic cable pay-off stand according to claim 4, characterized in that: A handle is provided at the end of the adjusting screw rod (5), and the handle cover is provided with an anti-slip pad (11).

6. The automatic cable pay-off stand according to claim 5, characterized in that: The extension frame (6) is symmetrically fixed with a guide plate (12).

7. The automatic cable pay-off stand according to claim 6, characterized in that: The guide plate (12) is located at a corresponding position of the pressure roller (7).

8. The automatic cable pay-off stand according to claim 7, characterized in that: A scale (13) is arranged on the side of the fixed frame (2), and the scale (13) uses the extension frame (6) as a pointer.

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