Active tape releasing mechanism of medium-sized high-speed braiding machine

Abstract

The utility model relates to an active tape releasing mechanism of a medium-sized high-speed braiding machine, which comprises an active tape releasing mechanism body, and the active tape releasing mechanism body consists of a rack, a tape releasing main shaft device, a swing arm device, a swing arm limiting block, a lower guide wheel and an upper guide wheel, a tape releasing main shaft device, a lower guide wheel, a swing arm limiting block, a swing arm device and an upper guide wheel are sequentially mounted on the rack from bottom to top, a wrapping tape is fixed on the tape releasing main shaft device, and the wrapping tape is rotatably released through the swing arm device after passing through the lower guide wheel and the upper guide wheel. The active tape releasing mechanism of the medium-sized high-speed braiding machine has the advantages of being simple and reasonable in structure, convenient to install and use, stable in tape releasing, adjustable in tension, sensitive in response, compact in structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of wire and cable manufacturing equipment, and specifically relates to an active belt-releasing mechanism of a medium-sized high-speed braiding machine. Background Art

[0002] Medium-sized high-speed braiding machines are mainly suitable for braiding the shielding outer network layer of various cables such as data communication cables, control cables, digital cables, and audio cables. In order to achieve better shielding performance, the core wire is completely covered with metal foil tapes such as copper or aluminum before braiding. Some of the unwinding mechanisms of existing medium-sized high-speed braiding machines use friction plates to control the tension of the unwinding tape. The tension of the unwinding tape does not come out of the unwinding tape mechanism and directly enters the main machine to cover the core wire. Because the unwinding tape tension needs to be adjusted frequently according to the material, width, thickness, and diameter of the tape, the unwinding tape reel changes in real time. Some unwinding tape mechanisms use hysteresis brakes to provide unwinding tape tension. The tension can be automatically controlled according to the preset program, but there is a deviation from the ideal tension state of the tape. The tape will jump or shake when unwinding, causing the core wire to leak or the surface to be uneven after coating, which affects the production efficiency and product quality of wire and cable manufacturers.

[0003] Therefore, an active tape unwinding mechanism for a medium-sized high-speed braiding machine is designed to overcome the above problems. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an active tape unwinding mechanism for a medium-sized high-speed braiding machine which has a simple and reasonable structure, is easy to install and use, has stable tape unwinding, adjustable tension, is sensitive to reaction and has a compact structure.

[0005] The utility model is realized through the following technical scheme: an active tape unwinding mechanism of a medium-sized high-speed braiding machine, comprising an active tape unwinding mechanism body, the active tape unwinding mechanism body consisting of a frame, a tape unwinding spindle device, a swing arm device, a swing arm limit block, a lower guide wheel and an upper guide wheel, the tape unwinding spindle device, the lower guide wheel, the swing arm limit block, the swing arm device and the upper guide wheel are sequentially installed on the frame from bottom to top, a wrapped tape is fixed on the tape unwinding spindle device, and after the wrapped tape passes through the lower guide wheel and the upper guide wheel, the swing arm device is used to realize rotational tape unwinding.

[0006] Preferably: the tape unwinding spindle device consists of a motor, a reduction gearbox, a bearing sleeve, a bearing, a tape clamp, a tape seat, a tape nut and a spindle, the spindle is installed on the frame through the bearing sleeve and the bearing, one end of the spindle is fixed with the motor through the reduction gearbox, and the other end is installed with the tape seat, and the tape is fixed to the tape seat through a clamp and a tape nut.

[0007] Preferably, the swing arm device consists of a counterweight, a swing arm, a swing arm guide wheel, an eccentric block, a swing arm bearing sleeve, a swing arm shaft, a swing arm bearing and a distance sensor. The swing arm shaft is installed on the frame through the swing arm bearing sleeve and the swing arm bearing. An eccentric block is fixed on one side of the swing arm shaft, and a distance sensor is installed at a position corresponding to the eccentric block on the frame. A swing arm is installed on the other side of the swing arm shaft. A counterweight is movably installed on the swing arm, and a swing arm guide wheel is fixed at one end of the swing arm. When releasing the tape, the wrapped tape passes through the lower guide wheel, the upper guide wheel and the swing arm guide wheel, and then enters the main machine to wrap the core wire, driving the swing arm to overcome the gravity of the counterweight block and lift up. At the same time, the distance sensor provides a signal to the motor to rotate to release the tape. The tape release tension can be adjusted by adjusting the position of the counterweight block on the swing arm.

[0008] Preferably, the lower guide wheels and the upper guide wheels are at least one group, each group of upper guide wheels are arranged in parallel, and the lower guide wheels and the upper guide wheels are arranged up and down.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] 1) The utility model adopts a motor to provide the power for unwinding the tape, and controls the motor speed through a distance sensor to ensure smooth unwinding of the tape;

[0011] 2) The tension of the tape unwinding of the utility model is provided by the gravity of the counterweight block, and the tension of the tape unwinding is stable; the fine adjustment of the tension of the tape unwinding can be achieved by adjusting the position of the counterweight block, and the tension fine adjustment is accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0014] In order to enable ordinary technicians in the field to more clearly understand the purpose, technical solutions and advantages of the utility model, the utility model is further explained below in conjunction with the accompanying drawings and embodiments.

[0015] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal" and "vertical" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention. They do not indicate or imply that the device or component referred to must have a specific direction and therefore should not be understood as a limitation on the present invention.

[0016] The utility model will be described in detail below with reference to the accompanying drawings: Figure 1-2As shown, an active tape unwinding mechanism of a medium-sized high-speed braiding machine includes an active tape unwinding mechanism body, which is composed of a frame 1, a tape unwinding spindle device 2, a swing arm device 5, a swing arm limit block 4, a lower guide wheel 3 and an upper guide wheel 6. The tape unwinding spindle device 2, the lower guide wheel 3, the swing arm limit block 4, the swing arm device 5 and the upper guide wheel 6 are sequentially installed on the frame 1 from bottom to top. A wrapping tape 23 is fixed on the tape unwinding spindle device, and the wrapping tape 23 passes through the lower guide wheel 3 and the upper guide wheel 6, and then realizes the rotation unwinding through the swing arm device 5.

[0017] The tape unwinding spindle device 2 is composed of a motor 15, a reduction gearbox 16, a bearing sleeve 17, a bearing 18, a tape wrapping clip 19, a tape wrapping seat 20, a tape wrapping nut 21 and a spindle 22. The spindle 22 is installed on the frame 1 through the bearing sleeve 17 and the bearing 18. The motor 15 is fixed to one end of the spindle 22 through the reduction gearbox 16, and the tape wrapping seat 20 is installed on the other end. The tape wrapping seat 20 is fixed with a tape 23 through a clip 19 and a tape wrapping nut 21.

[0018] The swing arm device 5 is composed of a counterweight 7, a swing arm 8, a swing arm guide wheel 9, an eccentric weight 10, a swing arm bearing sleeve 11, a swing arm shaft 12, a swing arm bearing 13 and a distance sensor 14. The swing arm shaft 12 is installed on the frame 1 through the swing arm bearing sleeve 11 and the swing arm bearing 13. The eccentric weight 10 is fixed on one side of the swing arm shaft 12, and a distance sensor 14 is installed at a position corresponding to the eccentric weight 10 on the frame 1. The swing arm 8 is installed on the other side of the swing arm shaft 12. The counterweight 7 is movably installed on the swing arm 8, and a swing arm guide wheel 9 is fixed at one end of the swing arm 8. When unwinding the tape, the wrapped tape 23 passes through the lower guide wheel 3, the upper guide wheel 6 and the swing arm guide wheel 9, and then enters the main machine to wrap the core wire, driving the swing arm 8 to overcome the gravity of the counterweight 7 and lift up. At the same time, the distance sensor 14 provides a signal to the motor 15 to rotate and unwind the tape. By adjusting the position of the counterweight 7 on the swing arm 8, the unwinding tension can be adjusted.

[0019] The lower guide wheels 3 and the upper guide wheels 6 form at least one group, and each group of upper guide wheels 6 is arranged in parallel, and the lower guide wheels 3 and the upper guide wheels 6 are arranged up and down.

[0020] The structural features and working process of the utility model are as follows:

[0021] like Figure 1-2As shown, the swing arm shaft 12 of the swing arm device 5 is installed on the frame 1 through the swing arm bearing sleeve 11 and the swing arm bearing 13, the eccentric block 10 is fixed on one side, and the distance sensor 14 installed on the frame 1 corresponds to it, and the swing arm 8 is installed on the other side, and the counterweight block 7 is adjustable on the swing arm 8. The swing arm guide wheel 9 is fixed on the swing arm 8. When unwinding the tape, the wrapped tape 23 passes through multiple sets of upper guide wheels and lower guide wheels and the swing arm guide wheel 9, and enters the main machine to wrap the core wire, driving the swing arm 8 to overcome the gravity of the counterweight block 7 and lift up, while the distance sensor 14 provides a signal to the motor 15 to rotate and unwind the tape. By adjusting the position of the counterweight block 7 on the swing arm 8, the tension of the unwinding tape can be adjusted, and the whole process is simple and convenient.

[0022] The specific embodiments described herein are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. An active tape release mechanism for a medium-sized high-speed braiding machine, comprising an active tape release mechanism body, characterized in that: The main body of the active tape unwinding mechanism is composed of a frame (1), a tape unwinding spindle device (2), a swing arm device (5), a swing arm limit block (4), a lower guide wheel (3) and an upper guide wheel (6). The tape unwinding spindle device (2), the lower guide wheel (3), the swing arm limit block (4), the swing arm device (5) and the upper guide wheel (6) are sequentially mounted on the frame (1) from bottom to top. A wrapping tape (23) is fixed on the tape unwinding spindle device. After the wrapping tape (23) passes through the lower guide wheel (3) and the upper guide wheel (6), it is rotated through the swing arm device (5) to unwind the tape.

2. The active tape unwinding mechanism of the medium-sized high-speed braiding machine according to claim 1 is characterized in that: The tape unwinding spindle device (2) comprises a motor (15), a reduction gearbox (16), a bearing sleeve (17), a bearing (18), a tape wrapping clip (19), a tape wrapping seat (20), a tape wrapping nut (21) and a spindle (22). The spindle (22) is mounted on a frame (1) via the bearing sleeve (17) and the bearing (18). One end of the spindle (22) is fixed with the motor (15) via the reduction gearbox (16), and the other end is mounted with the tape wrapping seat (20). The tape wrapping seat (20) is fixed with a tape wrapping (23) via the clip (19) and the tape wrapping nut (21).

3. The active tape release mechanism of the medium-sized high-speed braiding machine according to claim 2 is characterized in that: The swing arm device (5) is composed of a counterweight (7), a swing arm (8), a swing arm guide wheel (9), an eccentric block (10), a swing arm bearing sleeve (11), a swing arm shaft (12), a swing arm bearing (13) and a distance sensor (14); the swing arm shaft (12) is mounted on the frame (1) via the swing arm bearing sleeve (11) and the swing arm bearing (13); an eccentric block (10) is fixed on one side of the swing arm shaft (12); and a distance sensor (14) is mounted on the frame (1) at a position corresponding to the eccentric block (10); and the swing arm shaft (12) is provided with a plurality of eccentric blocks. ) is installed on the other side of the swing arm (8), a counterweight (7) is movably installed on the swing arm (8), and a swing arm guide wheel (9) is fixed to one end of the swing arm (8). When unwinding the tape, the wrapped tape (23) passes through the lower guide wheel (3), the upper guide wheel (6) and the swing arm guide wheel (9), and then enters the main machine to wrap the core wire, driving the swing arm (8) to overcome the gravity of the counterweight (7) and lift up. At the same time, the distance sensor (14) provides a signal to the motor (15) to rotate and unwind the tape. By adjusting the position of the counterweight (7) on the swing arm (8), the unwinding tension can be adjusted.

4. The active tape unwinding mechanism of the medium-sized high-speed braiding machine according to claim 3 is characterized in that: The lower guide wheels (3) and the upper guide wheels (6) form at least one group, and the upper guide wheels (6) of each group are arranged in parallel, and the lower guide wheels (3) and the upper guide wheels (6) are arranged in an upper and lower manner.

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