High-sensitivity tension pay-off adjusting device

Abstract

The utility model discloses a high-sensitivity tension pay-off adjusting device, which belongs to the technical field of cable pay-off equipment and comprises a support, the lower end of the support is fixedly connected with a base, and the upper end of the support is rotatably connected with a high-sensitivity balance arm. The left end and the right end of the high-sensitivity balance arm are rotationally connected with a front guide tensioning wheel and a rear tensioning pressing wheel respectively, and a cable core is wound between the upper end and the lower end of the front guide tensioning wheel and the upper end and the lower end of the rear tensioning pressing wheel, so that when the cable core in movement looses and droops downwards, the rear tensioning pressing wheel can tension the cable core under the action of the adjustable tensioning assembly, and the cable core can be tensioned and fixed. Due to the fact that the front guide tensioning wheel and the rear tensioning pressing wheel are both arranged at the two ends of the straight line center of the high-sensitivity balance arm, the front guide tensioning wheel is lifted up by the corresponding distance immediately, all actions are completed synchronously, the loosening distance of drooping of the cable core is just reduced, and therefore it is guaranteed that the cable core enters a machine die head at a constant speed and is stable and unchanged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable pay-off equipment, and more specifically to a high-sensitivity tension pay-off regulating device. Background Art

[0002] The existing cable unwinding device generally adopts a horizontally arranged guide wheel for guiding, but its horizontal width is limited by the external dimensions of the device, and its horizontal width is difficult to adjust, and cannot be adapted to the unwinding of cables of various types.

[0003] During the process of cable unwinding, the cable is placed horizontally on the guide wheel. Due to the heavy weight of the cable itself, the existing guide wheel mechanism may be unstable or the unwinding guide wheel may not rotate flexibly. At the same time, the cable may move horizontally during the unwinding process. The existing guide wheel mechanism cannot fix the cable, and it is easy to move the cable to one end, causing the cable to contact the side limit device, causing the outer sheath of the cable to be subjected to great lateral pressure, which is easy to damage the outer sheath of the cable, and the tension of the cable changes after being compressed on one side, resulting in the phenomenon of cable sagging and relaxation, which poses a safety hazard to the subsequent cable operation. In addition, the existing high-voltage cable unwinding device is large in size, heavy in weight, and inconvenient to carry. For this reason, this scheme proposes a high-sensitivity tension unwinding adjustment device. Utility Model Content

[0004] 1. Technical problems to be solved:

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a high-sensitivity tension and wire-releasing adjustment device, which can realize that when the moving cable core becomes loose and sags downward, the rear tensioning and light-pressing wheel will be pressed downward under the action of the adjustable tensioning component. Since the front guide tensioning wheel and the rear tensioning and light-pressing wheel are both at the two ends of the straight line center of the high-sensitivity balance arm, the front guide tensioning wheel will be lifted upward by a corresponding distance, and all actions will be completed synchronously, which will just reduce the loose distance of the cable core sagging, thereby ensuring that the cable core enters the machine die head at a uniform and stable speed.

[0006] 2. Technical solution:

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A high-sensitivity tension and wire-release adjustment device comprises a bracket, the lower end of the bracket is fixedly connected to a base, the upper end of the bracket is rotatably connected to a high-sensitivity balance arm, the left and right ends of the high-sensitivity balance arm are respectively rotatably connected to a front guide tensioning wheel and a rear tensioning and light-pressure wheel, a cable core is wound between the upper and lower ends of the front guide tensioning wheel and the rear tensioning and light-pressure wheel, and an adjustable tensioning assembly is installed between the side end of the bracket and the high-sensitivity balance arm.

[0009] Furthermore, the adjustable tensioning assembly includes a storage sleeve installed on the side end of the bracket, a connecting rod is slidably installed between the inner walls of the storage sleeve, the upper end of the connecting rod is fixedly connected to the connecting sleeve, the lower end of the connecting rod is fixedly connected to the rack, the rack is located between the inner walls of the storage sleeve, the side wall of the storage sleeve is rotatably connected to a transmission gear, the transmission gear is meshed with the side end of the rack, the outer end of the transmission gear is fixedly connected to a handle, and the handle extends to the outside of the storage sleeve.

[0010] Furthermore, a slide groove is provided on the side wall of the storage sleeve, a slider is slidably connected between the inner walls of the slide groove, and the slider is fixedly connected to the rack.

[0011] Furthermore, a convex block is fixedly connected to the side end of the storage sleeve, a convex groove and a rectangular groove are correspondingly provided on the side end of the bracket, the rectangular groove is located on the upper side of the convex groove and is interconnected with the convex groove, and a through hole is provided on the side end of the high-sensitivity balance arm, and the positions of the through hole and the hole of the connecting sleeve correspond to each other.

[0012] Furthermore, the side end of the connecting rod is provided with a plurality of evenly distributed size markings.

[0013] 3. Beneficial effects:

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] In this solution, when the moving cable core has a loose distance of 20mm or other length downward, the rear tensioning and light pressing wheel will be adjusted downward by 10mm under the action of the adjustable tensioning component. Since the front guide tensioning wheel and the rear tensioning and light pressing wheel are both at the two ends of the straight line center of the high-sensitivity balance arm, the front guide tensioning wheel will be lifted up by 10mm immediately. All actions are completed synchronously, which just offsets the loose distance of 20mm of the cable core, thereby ensuring that the cable core enters the machine die head at a uniform and stable speed.

[0016] This solution connects a convex clamp block on the left side of the adjustable tensioning component, which can enable personnel to place the connecting sleeve from the inside of the rectangular groove, and then move the convex clamp block down to the inside of the convex groove to complete the limit installation, and then pass the bolt through the through hole and the hole of the connecting sleeve, and complete the installation of the adjustable tensioning component through the nut, so that it can be easier to disassemble or install when carrying it later, which is convenient for subsequent personnel to carry the entire equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model after disassembly;

[0019] Figure 3 It is a structural schematic diagram of the adjustable tensioning assembly of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Bracket; 11. Convex groove; 12. Rectangular groove; 13. Convex block; 2. Base; 3. High-sensitivity balance arm; 31. Through hole; 4. Front guide tensioner wheel; 5. Rear tensioner and light pressure wheel; 6. Cable core; 7. Adjustable tensioning assembly; 71. Storage sleeve; 711. Slide groove; 72. Connecting rod; 721. Size identification; 73. Connecting sleeve; 74. Rack; 75. Transmission gear; 76. Handle. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-3A high-sensitivity tension and wire-release adjustment device comprises a bracket 1, the lower end of the bracket 1 is fixedly connected to a base 2, the upper end of the bracket 1 is rotatably connected to a high-sensitivity balancing arm 3, the left and right ends of the high-sensitivity balancing arm 3 are respectively rotatably connected to a front guide tensioning wheel 4 and a rear tensioning and light pressing wheel 5, a cable core 6 is wound between the upper and lower ends of the front guide tensioning wheel 4 and the rear tensioning and light pressing wheel 5, and an adjustable tensioning component 7 is installed between the side end of the bracket 1 and the high-sensitivity balancing arm 3.

[0027] During use, in order to avoid the phenomenon in the prior art that the cable is not easy to sag and relax due to the instability of the existing guide wheel mechanism or the inflexible rotation of the pay-off guide wheel, and the change of the tensioning force of the cable after being compressed on one side, in this embodiment,

[0028] From the perspective of the cable core 6 to the device, the cable core passes over the front guide tensioner wheel 4, sneaks into the bottom of the rear tensioner and light pressure wheel 5 and enters the extruder die head. In normal working state, the front guide tensioner wheel 4 is slightly higher than the rear tensioner and light pressure wheel 5, and the straight line between the two wheels forms an angle with the center extension line of the bracket 1 as the vertical angle, and the size of the vertical angle is always equal and the direction is opposite.

[0029] When the moving cable core 6 has a loose distance of 20mm or other length downward, the rear tensioning and light pressing wheel 5 is adjusted downward by 10mm under the action of the adjustable tensioning component 7. Since the front guide tensioning wheel 4 and the rear tensioning and light pressing wheel 5 are both at the two ends of the straight line center of the high-sensitivity balance arm 3, the front guide tensioning wheel 4 is immediately lifted up by 10mm. All actions are completed synchronously, which just offsets the loose distance of the cable core 6 of 20mm, thereby ensuring that the cable core enters the machine die head at a uniform and stable speed.

[0030] In this solution, it is best if the tension of the device is the same or similar to the tension of the cable core during movement. This process can be achieved by adjusting the adjustable tensioning assembly 7 in this embodiment.

[0031] See also Figure 1-3 The adjustable tensioning assembly 7 includes a storage sleeve 71 installed at the side end of the bracket 1, a connecting rod 72 is slidably installed between the inner walls of the storage sleeve 71, the upper end of the connecting rod 72 is fixedly connected with a connecting sleeve 73, the lower end of the connecting rod 72 is fixedly connected with a rack 74, the rack 74 is located between the inner walls of the storage sleeve 71, the side wall of the storage sleeve 71 is rotatably connected with a transmission gear 75, the transmission gear 75 is meshed with the side end of the rack 74, the outer end of the transmission gear 75 is fixedly connected with a handle 76, and the handle 76 passes through the outside of the storage sleeve 71.

[0032] During the use of this solution, when the personnel need to adjust the tensioning force of the cable core 6, the handle 76 is rotated clockwise to cause the transmission gear 75 to rotate inside the storage sleeve 71 and continuously engage with the rack 74, so that the rack 74 drives the connecting rod 72 to retract in a straight line, causing the right side of the high-sensitivity balance arm 3 originally connected by the connecting sleeve 73 to start moving downward, that is, the rear tensioning and light-pressing wheel 5 is adjusted downward by a certain distance, and the front guide tensioning wheel 4 is lifted up by the same distance, thereby tightening the tensioning force of the cable core 6 during the wire release and transportation, ensuring that the cable core 6 can maintain a uniform and stable entry speed when entering the machine die head.

[0033] See also Figure 2-3 A slide groove 711 is provided on the side wall of the storage sleeve 71 , a slider is slidably connected between the inner walls of the slide groove 711 , and the slider is fixedly connected to the rack 74 .

[0034] During use of the present invention, by providing the slider and the slide groove 711 , the rack 74 can make its linear motion smoother and faster when it is meshed with the transmission gear 75 .

[0035] See also Figure 2-3 The side end of the storage sleeve 71 is fixedly connected with a convex block 13, and the side end of the bracket 1 is correspondingly provided with a convex groove 11 and a rectangular groove 12, the rectangular groove 12 is located on the upper side of the convex groove 11 and is interconnected therewith, and the side end of the high-sensitivity balance arm 3 is provided with a through hole 31, and the position of the through hole 31 corresponds to the position of the hole of the connecting sleeve 73.

[0036] During the use of this scheme, since most of the existing wire-laying equipment is large in size, heavy in weight, and inconvenient to carry, in this embodiment, since a convex block 13 is connected to the left side of the adjustable tensioning component 7, it can prompt personnel to insert the connecting sleeve 73 from the inside of the rectangular groove 12, and then move the convex block 13 down to the inside of the convex groove 11 to complete the limit installation, and then pass the bolt through the through hole 31 and the hole of the connecting sleeve 73, and complete the installation of the adjustable tensioning component 7 through the nut, so that when it is carried later, both disassembly and installation can be easier, which is convenient for subsequent personnel to carry the entire equipment.

[0037] See also Figure 2-3 The side end of the connecting rod 72 is provided with a plurality of evenly distributed size markings 721 .

[0038] During use of the present invention, by engraving corresponding size marks 721 on the surface of the connecting rod 72, when each scale size mark 721 is stored inside the storage sleeve 71, it indicates that the vertical position of the rear tensioning and lightening wheel 5 is moved down by 5mm, so that personnel can fine-tune the tensioning force of the cable core 6 immediately;

[0039] In this embodiment, the size mark 721 may also be engraved with corresponding numbers on the surface for the convenience of personnel.

[0040] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A high-sensitivity tension-release adjusting device, comprising a bracket (1), characterized in that: The lower end of the bracket (1) is fixedly connected to a base (2), the upper end of the bracket (1) is rotatably connected to a high-sensitivity balancing arm (3), the left and right ends of the high-sensitivity balancing arm (3) are rotatably connected to a front guide tensioning wheel (4) and a rear tensioning and light-pressing wheel (5), respectively, a cable core (6) is wound between the upper and lower ends of the front guide tensioning wheel (4) and the rear tensioning and light-pressing wheel (5), and an adjustable tensioning component (7) is installed between the side end of the bracket (1) and the high-sensitivity balancing arm (3).

2. A high-sensitivity tension and wire-paying regulating device according to claim 1, characterized in that: The adjustable tensioning assembly (7) comprises a storage sleeve (71) installed at the side end of the bracket (1); a connecting rod (72) is slidably installed between the inner walls of the storage sleeve (71); the upper end of the connecting rod (72) is fixedly connected to a connecting sleeve (73); the lower end of the connecting rod (72) is fixedly connected to a rack (74); the rack (74) is located between the inner walls of the storage sleeve (71); the side wall of the storage sleeve (71) is rotatably connected to a transmission gear (75); the transmission gear (75) is meshed with the side end of the rack (74); the outer end of the transmission gear (75) is fixedly connected to a handle (76); the handle (76) passes through the outer side of the storage sleeve (71).

3. A high-sensitivity tension and wire-paying regulating device according to claim 2, characterized in that: A sliding groove (711) is provided on the side wall of the storage sleeve (71), a sliding block is slidably connected between the inner walls of the sliding groove (711), and the sliding block is fixedly connected to the rack (74).

4. A high-sensitivity tension and wire-paying regulating device according to claim 2, characterized in that: The side end of the storage sleeve (71) is fixedly connected with a convex block (13); the side end of the bracket (1) is correspondingly provided with a convex groove (11) and a rectangular groove (12); the rectangular groove (12) is located on the upper side of the convex groove (11) and is interconnected therewith; the side end of the high-sensitivity balance arm (3) is provided with a through hole (31); the positions of the through hole (31) and the hole of the connection sleeve (73) correspond to each other.

5. A high-sensitivity tension and pay-off regulating device according to claim 2, characterized in that: The side end of the connecting rod (72) is provided with a plurality of evenly distributed size markings (721).

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