Reverse winding bag strap machine

Abstract

The present invention discloses a reverse winding tape wrapping machine, which includes a tape dragging device and a tape wrapping device. The tape dragging device includes a tape dragging die. The tape wrapping device includes a tape wrapping rotating bracket, a driving mechanism and a tape feeding mechanism. The driving mechanism drives the tape wrapping rotating bracket to rotate. The tape wrapping rotating bracket is located between the driving mechanism and the tape dragging die, and the input end of the tape wrapping rotating bracket is docked with the outlet of the tape dragging die. During tape wrapping, the wire core passes through the tape dragging die for tape dragging and then sequentially passes through the central axis of the tape wrapping rotating bracket and the driving mechanism. The tape released by the tape feeding mechanism is wrapped around the wire core under the rotational drive of the tape wrapping rotating bracket. The reverse winding tape wrapping machine of the present invention can improve the tape dragging and wrapping hybrid wire wrapping process and improve the performance of the finished product.

Description

Technical Field

[0001] The present invention relates to a cable production device, and more particularly to a reverse winding tape wrapping machine. Background Art

[0002] During the production process of cables, in order to evenly conduct the wire core and the insulation electric field, it is necessary to wrap one or more layers of metal or non-metal material tapes on the outer surface of the wire core. Specifically, the core wire and the tape are respectively output, and at the same time, the tape is adjusted by the tape wrapping mechanism and then wrapped on the core wire, so that the core wire and the tape are combined to form a cable. The existing tape wrapping processes are generally divided into two types: drag wrapping and winding wrapping. Drag wrapping is that the tape is wrapped around the wire core after passing through the drag wrapping die with the wire core. Its advantages are high wrapping rate, stable performance, and no damage to the wire core due to the dragging force; its disadvantages are that the tape will open by itself, is easy to loosen, and is not tightly wrapped. Winding wrapping is to drive the tape to rotate around the wire core, so that the tape is wound and wrapped around the wire core with a certain tension. Its advantage is that it is wrapped finely and tightly and is not easy to loosen. Therefore, in many cases, these two tape wrapping processes are used in combination, that is, drag wrapping first and then winding wrapping.

[0003] However, there are certain deficiencies in the existing combined process of drag wrapping and winding wrapping. For example Figure 1 As shown, the existing combined process of drag wrapping and winding wrapping uses a forward wire-walking winding system 300. Specifically, the wire core 400 passes through the drag wrapping die 301, and the first layer of tape is drag-wrapped onto the conductor. Then, after passing through the winding seat 302, the wire core 400 enters the winding rotating bracket 303 and is output from the winding rotating bracket 303. After output, the second layer of tape is wound around the wire core 400 by the drive of the winding rotating bracket 303. However, since there is still a need to pass through the winding seat 302 between the output end of the drag wrapping die 301 and the winding rotating bracket 303 before winding, this distance is relatively long. When the wire core 400 passes through the winding seat 302, the previously drag-wrapped tape will become loose under the influence of vibration and pulling, and then is tightly wrapped by the tape to be wound. Therefore, the drag wrapping effect inside the wire core is relatively poor. Although it looks okay on the outside, the performance of the finished product is greatly affected. Summary of the Invention

[0004] The purpose of the present invention is to provide a reverse winding tape wrapping machine that can improve the combined wire wrapping process of drag wrapping and winding wrapping and improve the performance of the finished product.

[0005] To achieve the above object, the reverse winding tape machine provided by the present invention includes a bag dragging device and a winding device. The bag dragging device includes a bag dragging die. The winding device includes a winding rotating bracket, a driving mechanism, and a tape feeding mechanism. The driving mechanism drives the winding rotating bracket to rotate. The winding rotating bracket is located between the driving mechanism and the bag dragging die, and the input end of the winding rotating bracket is docked with the outlet of the bag dragging die. When winding the tape, the wire core passes through the center axis of the winding rotating bracket and the driving mechanism in sequence after being dragged by the bag dragging die, and the tape released by the tape feeding mechanism is wound around the wire core under the rotation drive of the winding rotating bracket.

[0006] Compared with the prior art, by arranging the winding rotating bracket between the driving mechanism and the bag dragging die, the input end of the winding rotating bracket is directly docked with the outlet of the bag dragging die. Therefore, when winding the tape, the wire core can quickly enter the winding rotating bracket after being dragged by the bag dragging die and is wound on the winding rotating bracket. This can greatly shorten the distance between the bag dragging die and the output end of the winding rotating bracket, avoiding the problem of a long transition distance from bag dragging to winding due to improper layout in the traditional technology. Therefore, it can effectively prevent the phenomenon of tape loosening after bag dragging and maintain the effect of bag dragging. After timely winding, the bag dragging effect inside the wire core is very good, effectively improving the hybrid wire wrapping process of bag dragging and winding, and greatly improving the performance of the finished product. In addition, the present invention is an improvement made in the traditional hybrid wire wrapping system of bag dragging and winding. Most components of the traditional structure can be directly reused, realizing dual use of one machine. Moreover, the improved structure is very simple, the improvement cost is extremely low, the improvement effect is obvious, and the production cost is effectively reduced.

[0007] Preferably, the rotation center axis of the winding rotating bracket, the rotation axis of the driving mechanism, and the rotation axis of the tape feeding mechanism are coaxially arranged.

[0008] Preferably, the winding rotating bracket includes a positioning plate, a first guiding seat, a first guiding cylinder, a support frame, a steering seat, and a steering cylinder. The first guiding seat is arranged on the positioning plate, the first guiding cylinder is pivotally connected to the first guiding seat, one end of the support frame is arranged on one side of the positioning plate and on the same side as the first guiding cylinder, and the other end of the support frame extends along the central axis direction of the positioning plate and towards the direction of the bag dragging die. The steering seat is arranged at the other end of the support frame, the steering cylinder is pivotally connected to the steering seat, and the pivotal center axis is parallel to the central axis of the first guiding cylinder. The steering seat can make the steering cylinder extend out of the outer end of the support frame, so that the tape sequentially passes through the first guiding cylinder and the steering cylinder and is output reversely and wrapped outside the wire core.

[0009] Specifically, the steering seat is rotatably adjustable and arranged on the support frame. In this way, the angle and position between the wrapping tape and the wire core can be adjusted, so that the overlapping area of the wrapping tape wrapped on the wire core can be adjusted.

[0010] Specifically, the wrapping rotation bracket further includes a second guide seat and a second guide cylinder. The second guide seat is arranged on the support frame, and the second guide cylinder is pivotally connected to the second guide seat; the pivotal central axis of the second guide cylinder is parallel to the pivotal central axis of the first guide cylinder. The second guide seat and the second guide cylinder can adjust and guide the direction of the wrapping tape after it is output from the first guide cylinder, so that it can reach the turning cylinder in the correct posture, ensuring the accuracy of the wrapping of the wrapping tape.

[0011] Specifically, the support frame includes two arms, and the two arms are respectively located on opposite sides of the central axis of the positioning plate. In this way, it can not only provide support for the second guide seat, but also does not affect the wire core passing through the central axis of the wrapping rotation bracket, with a simple and compact structure.

[0012] Specifically, the pivotal central axis of the first guide cylinder is perpendicular to the rotation central axis of the wrapping rotation bracket.

[0013] Preferably, the reverse wrapping tape machine further includes a tape storage seat, and the tape storage seat is arranged before the dragging wrapping die along the incoming wire direction of the wire core.

[0014] Preferably, the tape feeding mechanism includes a first servo motor, a first rotating shaft and a tape reel. The tape reel is coaxially arranged at one end of the first rotating shaft, the output end of the first servo motor is connected to the other end of the first rotating shaft, and the first rotating shaft has a hollow structure that penetrates both ends for the wire core to pass through.

[0015] Specifically, the driving mechanism includes a second servo motor, a second rotating shaft and a turntable. The wrapping rotation bracket is concentrically arranged on the turntable, the turntable is coaxially arranged at one end of the second rotating shaft, the output end of the second servo motor is connected to the other end of the second rotating shaft, and the second rotating shaft is coaxially and rotatably sleeved outside the first rotating shaft. Description of the Drawings

[0016] Figure 1 is a structural diagram of an existing dragging and wrapping hybrid tape system.

[0017] Figure 2 is an overall structural diagram of the reverse wrapping tape machine of the present invention.

[0018] Figure 3 is an internal view of the reverse wrapping tape machine of the present invention.

[0019] Figure 4It is an axial sectional view of the wrapping device of the reverse winding tape machine of the present invention.

[0020] Figure 5 It is a perspective view of the wrapping rotating bracket of the reverse winding tape machine of the present invention.

[0021] Figure 6 It is a side view of the wrapping rotating bracket of the reverse winding tape machine of the present invention. Detailed implementation mode

[0022] To describe in detail the technical content, structural features, and achieved effects of the present invention, the following will be described in detail in conjunction with the implementation modes and with reference to the accompanying drawings.

[0023] As Figures 2 to 4 shown, the reverse winding tape machine 100 of the present invention is used for the process of dragging and wrapping a hybrid wire around a wire core 200, and it includes a dragging device 1, a wrapping device 2, and a tape storage base 3. The dragging device 1 includes a dragging die 11. The wrapping device 2 includes a wrapping rotating bracket 21, a driving mechanism 22, a tape releasing mechanism 23, and a tape releasing tension adjusting mechanism 24. The tape storage base 3 is arranged in front of the dragging die 11 along the incoming wire direction of the wire core 200, that is, the dragging device 1 is located between the tape storage base 3 and the wrapping device 2. The dragging device 1 can drag the wire core 200; the driving mechanism 22 drives the wrapping rotating bracket 21 to rotate; the wrapping rotating bracket 21 is located between the driving mechanism 22 and the dragging die 11, and the input end of the wrapping rotating bracket 21 is docked with the outlet of the dragging die 11; the central axis of the tape storage base 3, the central axis of the dragging die 11, the rotation central axis of the wrapping rotating bracket 21, the rotating shaft of the driving mechanism 22, and the rotating shaft of the tape releasing mechanism 23 are coaxially arranged. When wrapping the tape, the wire core 200 passes through the tape storage base 3 and the dragging die 11 for dragging and then sequentially passes through the central axis of the wrapping rotating bracket 21 and the driving mechanism 22, and the wrapping tape released by the tape releasing mechanism 23 is wrapped around the wire core 200 under the rotational drive of the wrapping rotating bracket 21. Specifically, as follows:

[0024] Please refer to Figure 4 , the tape releasing mechanism 23 includes a first servo motor 231, a first pulley assembly 232, a first rotating shaft 233, and a tape reel 234. The tape reel 234 is coaxially arranged at one end of the first rotating shaft 233. The output end of the first servo motor 231 is connected to the other end of the first rotating shaft 233 through the first pulley assembly 232 and drives the first rotating shaft 233 to rotate. The first servo motor 231 is electrically connected to the control system. The first rotating shaft 233 has a hollow structure that penetrates both ends for a central tube to pass through, and the central tube allows the wire core 200 to pass through.

[0025] Please refer to againFigure 4 , the driving mechanism 22 includes a second servo motor 221, a second pulley assembly 222, a second rotating shaft 223 and a turntable 224. The wrapping rotating bracket 21 is concentrically arranged on the turntable 224. The turntable 224 is coaxially arranged at one end of the second rotating shaft 223. The output end of the second servo motor 221 is connected to the other end of the second rotating shaft 223 through the second pulley assembly 222 and drives the second rotating shaft 223 to rotate. The second servo motor 221 is electrically connected to the control system. The second rotating shaft 223 is coaxially and rotatably sleeved outside the first rotating shaft 233.

[0026] Please refer to again Figure 4 , the tape releasing tension adjusting mechanism 24 includes a third servo motor 241, a third pulley assembly 242, a bracket 243 and a tension rod 244. One end of the tension rod 244 is eccentrically fixed on the bracket 243. The central axis of the tension rod 244 is parallel to the second rotating shaft 223. The wrapping tape on the tape reel 234 is released and then passes around the tension rod 244. The central axis of the bracket 243 is coaxially arranged with the second rotating shaft 223. The output end of the third servo motor 241 is connected to the bracket 243 through the third pulley assembly 242 to drive the bracket 243 to rotate; the third servo motor 241 is electrically connected to the control system. An absolute encoder is provided in the third servo motor 241. The absolute encoder is used to detect the position of the tension rod 244 relative to the rotating frame, and thus send a signal to the control system. The control system can adjust the tape releasing speed of the first servo motor 231 according to the feedback of the signal.

[0027] As Figure 5 and Figure 6As shown, the wrapping rotation bracket 21 includes a positioning plate 211, a first guide seat 213, a first guide cylinder 214, a second guide seat 215, a second guide cylinder 216, a support frame 217, a steering seat 218 and a steering cylinder 219. The positioning plate 211 is fixedly connected to the second rotating shaft 223. A tape tube seat 212 is provided at the center of the positioning plate 211. The tape tube seat 212 is used to carry and position the center tube passing through the first rotating shaft 233, so that the core 200 after tape dragging can pass through the center tube. A sliding groove 211a is provided on the positioning plate 211. The first guide seat 213 is movably adjustable in a direction close to or away from the central axis of the positioning plate 211 and is arranged on the sliding groove 211a. The number of the first guide seats 213 is two, which are respectively arranged deviating from the central axis of the positioning plate 211, and the two first guide seats 213 are arranged radially along the circumference of their rotation around the central axis of the positioning plate 211. The first guide cylinder 214 is pivotally connected to the first guide seat 213, and the pivotal central axis of the first guide cylinder 214 is perpendicular to the central axis of the positioning plate 211. The first guide seat 213 is provided with an adjustment groove 213a, and the adjustment groove 213a extends along the central axis direction of the positioning plate 211. The position of the first guide cylinder 214 is adjustably arranged on the adjustment groove 213a. The support frame 217 is on the same side as the first guide cylinder 214, and one end is arranged on one side of the positioning plate 211. The other end of the support frame 217 extends along the central axis direction of the positioning plate 211 and towards the tape dragging die 11. The support frame 217 includes two arms 217a, and the two arms 217a are respectively located on opposite sides of the positioning plate 211. The second guide seat 215 and the steering seat 218 straddle the two arms 217a. In this way, it can not only provide support for the second guide seat 215 and the steering seat 218, but also does not affect the core 200 passing through the central axis of the wrapping rotation bracket 21, and the structure is simple and compact. The second guide seat 215 is arranged on the support frame 217 and is located between the first guide seat 213 and the steering seat 218. The number of the second guide seats 215 is two, which are respectively arranged along the extension direction of the support frame 217. The second guide cylinder 216 is pivotally connected to the second guide seat 215; the pivotal central axis of the second guide cylinder 216 is parallel to the pivotal central axis of the first guide cylinder 214. The second guide cylinder 216 can adjust and guide the direction of the tape after it is output from the first guide cylinder 214, so that the tape can reach the steering cylinder 219 in the correct posture, ensuring the accuracy of tape wrapping. The steering seat 218 is arranged at the other end of the support frame 217, the steering cylinder 219 is pivotally connected to the steering seat 218, and the pivotal central axis of the steering cylinder 219 is parallel to the central axis of the first guide cylinder 214.The steering seat 218 of the present invention is rotatably and adjustably arranged on the support frame 217; specifically, a steering shaft 218a is provided at the lower end of the steering seat 218, and the steering shaft 218a is pivotally connected to one end of the support frame 217 away from the positioning plate 211. The steering shaft 218a is parallel to the central axis of the first guide cylinder 214. When the steering seat 218 rotates, the steering cylinder 219 can extend out of the outer end of the support frame 217, so that the wrapping tape sequentially passes around the first guide cylinder 214 and the steering cylinder 219 and then is output reversely and wrapped around the wire core 200. In this way, the angle and position between the wrapping tape and the wire core 200 can be adjusted, so that the overlapping area of the wrapping tape wrapped on the wire core 200 can be adjusted. By providing a first guide seat 213 and a second guide seat 215 on the positioning plate 211, a steering seat 218 on the support frame 217, a first guide cylinder 214 on the first guide seat 213, a second guide cylinder 216 on the second guide seat 215, and a steering cylinder 219 on the steering seat 218, the wrapping tape can be output outward after passing around the first guide cylinder 213 and the steering cylinder 219; and since the support frame 217 can move the steering seat 218 away from the positioning plate 211, and the steering seat 218 can make the steering cylinder 219 extend out of the outer end of the support frame 217, therefore, the steering cylinder 219 can realize the reverse output of the wrapping tape, that is, it can output the wrapping tape in the opposite direction to the direction of guiding the input of the wrapping tape.

[0028] Combining the above and Figure 3 , the working principle of the reverse winding wrapping tape machine 100 of the present invention will be described as follows:

[0029] First, the core 200 passes through the inside of the tape storage base 3, the wrapping die 11, the wrapping rotary bracket 21, and the first rotating shaft 233 in sequence. When the core 200 passes through the wrapping die 11, the wrapping device 1 outputs the wrapping tape for wrapping, and the wrapping tape and the core 200 achieve wrapping in the wrapping die 11. In addition, the wrapping tape for wrapping is led out from the tape reel 234 and passes around the tension rod 244, then passes around the first guiding cylinder 214 located outside the positioning plate 211 from the outside, then passes around the first guiding cylinder 214 located inside the positioning plate 211 from the inside, then passes around the second guiding cylinder 216 located near the positioning plate 211 from the inside, and then passes around the second guiding cylinder 216 located near the steering cylinder 219 from the outside, and finally passes around the steering cylinder 219 from the outside and then wraps around the core 200 in the reverse direction of the conveying direction of the core 200. At the same time, the first servo motor 231 drives the first rotating shaft 233 to rotate, and the first rotating shaft 233 drives the tape reel 234 to rotate and unwind the tape. The third servo motor 241 starts to output torque to generate tension between the tension rod 244 and the wrapping tape. And, the second servo motor 221 starts and drives the second rotating shaft 223 to rotate, the second rotating shaft 223 drives the turntable 224 to rotate, and the second turntable 224 drives the wrapping rotary bracket 21 to rotate, so that the wrapping tape rotates around the core 200 and is wrapped on the core 200 at the same time.

[0030] Compared with the prior art, in the present invention, by arranging the wrapping rotary bracket 21 between the driving mechanism 22 and the wrapping die 11, the input end of the wrapping rotary bracket 21 is directly docked with the outlet of the wrapping die 11. Therefore, when wrapping the tape, after the core 200 is wrapped by the wrapping die 11, it can quickly enter the wrapping rotary bracket 21 and perform wrapping on the wrapping rotary bracket 21; this can greatly shorten the distance between the output end of the wrapping die 11 and the wrapping rotary bracket 21, avoiding the problem of a long transition distance from wrapping to winding due to improper layout in the traditional method. Therefore, it can effectively prevent the phenomenon of the wrapping tape becoming loose after wrapping and maintain the wrapping effect; after timely winding, the wrapping effect inside the core 200 is very good, effectively improving the wrapping process of combined wrapping of wrapping and winding, and greatly improving the performance of the finished product. In addition, the present invention is an improvement made in the traditional combined wrapping system of wrapping and winding. Most components of the traditional structure can be directly reused, realizing dual use of one machine. Moreover, the improved structure is very simple, the improvement cost is extremely low, the improvement effect is obvious, and the production cost is effectively reduced.

[0031] The above-disclosed are only the preferred examples of the present invention. Of course, the scope of rights of the present invention cannot be limited by this. Therefore, the equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. A reverse winding bag strap machine, characterized in that: It includes a dragging bag device and a wrapping device. The dragging bag device includes a dragging bag die. The wrapping device includes a wrapping rotating bracket, a driving mechanism and a tape feeding mechanism. The driving mechanism drives the wrapping rotating bracket to rotate. The wrapping rotating bracket is located between the driving mechanism and the dragging bag die, and the input end of the wrapping rotating bracket is docked with the outlet of the dragging bag die. The rotation central axes of the wrapping rotating bracket, the driving mechanism and the tape feeding mechanism are coaxially arranged. When wrapping the tape, the wire core passes through the dragging bag die for dragging and then successively passes through the central axis of the wrapping rotating bracket and the driving mechanism. The wrapping tape released by the tape feeding mechanism is wrapped around the wire core under the rotational drive of the wrapping rotating bracket. The wrapping rotating bracket includes a positioning plate, a first guiding seat, a first guiding cylinder, a support frame, a turning seat and a turning cylinder. The first guiding seat is arranged on the positioning plate. The first guiding cylinder is pivotally connected to the first guiding seat. One end of the support frame is arranged on one side of the positioning plate and on the same side as the first guiding cylinder. The other end of the support frame extends along the central axis direction of the positioning plate and towards the direction of the dragging bag die. The turning seat is arranged at the other end of the support frame. The turning cylinder is pivotally connected to the turning seat. The pivotal central axis is parallel to the central axis of the first guiding cylinder. The turning seat can make the turning cylinder extend out of the outer end of the support frame, so that the wrapping tape successively passes around the first guiding cylinder and the turning cylinder and then is output reversely and wrapped around the outside of the wire core.

2. The reverse winding bag strap machine according to claim 1, characterized in that: The turning seat is rotatably and adjustably arranged on the support frame.

3. The reverse winding bag strap machine according to claim 1, characterized in that: The wrapping rotating bracket further includes a second guiding seat and a second guiding cylinder. The second guiding seat is arranged on the support frame. The second guiding cylinder is pivotally connected to the second guiding seat. The pivotal central axis of the second guiding cylinder is parallel to the pivotal central axis of the first guiding cylinder.

4. The reverse winding bag strap machine according to claim 1, characterized in that: The support frame includes two arms, and the two arms are respectively located on opposite sides of the central axis of the positioning plate.

5. The reverse winding bag strap machine according to claim 1, characterized in that: The pivotal central axis of the first guiding cylinder is perpendicular to the rotation central axis of the wrapping rotating bracket.

6. The reverse winding bag strap machine according to claim 1, characterized in that: The reverse wrapping tape machine further includes a tape storage seat, and the tape storage seat is arranged in front of the dragging bag die along the wire core inlet direction.

7. The reverse winding bag strap machine according to claim 1, characterized in that: The tape feeding mechanism includes a first servo motor, a first rotating shaft and a tape reel. The tape reel is coaxially arranged at one end of the first rotating shaft. The output end of the first servo motor is connected to the other end of the first rotating shaft. The first rotating shaft has a hollow structure that penetrates both ends for the wire core to pass through.

8. The reverse winding bag strap machine according to claim 7, characterized in that: The driving mechanism includes a second servo motor, a second rotating shaft and a turntable. The wrapping rotating bracket is concentrically arranged on the turntable. The turntable is coaxially arranged at one end of the second rotating shaft. The output end of the second servo motor is connected to the other end of the second rotating shaft. The second rotating shaft is coaxially and rotatably sleeved outside the first rotating shaft.

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