A concentric wrapping device for active tape release

Abstract

This invention discloses an active tape-releasing concentric wrapping device, comprising a base and a tension control device body. A first motor is fixedly installed inside the base, and a second motor is installed on one side of the first motor. The output shaft of the first motor is connected to an outer pulley via a first conveyor belt, and the output shaft of the second motor is connected to an inner pulley via a second conveyor belt. The outer pulley is connected to an inner turntable via an inner rotating shaft. This invention solves the problems of existing concentric wrapping devices lacking an automatic tension adjustment component, resulting in inconsistent tape-releasing tension and significantly reduced wrapping effect. Furthermore, traditional concentric wrapping devices use an open-loop control motor for passive tape release, which cannot monitor and control tension in real time or achieve precise tension control. This makes it impossible to overcome the effects of mechanical damping and achieve precise control of tape release under low tension.

Description

Technical Field

[0001] This invention relates to the field of wrapping devices, and more specifically to a concentric wrapping device for active tape release. Background Technology

[0002] In the production of wires and cables, the core wires need to be wrapped once or multiple times. This requires the use of a concentric wrapping device. The concentric wrapping device uses a rotating disc to wrap the wrapping tape around the core wire, and is mainly used for wrapping the core wires of electric wires, power cables, control cables, and optical cables. However, existing concentric wrapping devices still have certain defects in operation. First, the lack of an automatic tension adjustment component means that the unwinding tension cannot be guaranteed to remain constant, which greatly reduces the wrapping effect. Second, traditional concentric wrapping devices use an open-loop mode to control the motor to passively unwind the tape, which cannot monitor and control the tension in real time, nor can it achieve precise tension control. Therefore, it cannot overcome the effects of mechanical damping and cannot achieve precise control of low tension unwinding.

[0003] The patent with publication number CN206991847U discloses a concentric wrapping device, which cannot solve the problems raised in this application: the existing concentric wrapping devices lack an automatic tension adjustment component, which makes it impossible to ensure that the wire tension is always constant, thus greatly reducing the wrapping effect. Secondly, the traditional concentric wrapping device uses an open-loop mode to control the motor to passively release the tape, which cannot monitor and control the tension in real time, nor can it accurately control the tension. Therefore, it cannot overcome the influence of mechanical damping and cannot achieve precise control of low tension tape release. Summary of the Invention

[0004] The purpose of this invention is to provide an active tape release concentric wrapping device, which can solve the problem that the existing concentric wrapping devices lack an automatic tension adjustment component, which makes it impossible to ensure that the tape release tension is always constant, thus greatly reducing the wrapping effect. Secondly, the traditional concentric wrapping device uses an open-loop mode to control the motor to passively release the tape, which cannot monitor and control the tension in real time, nor can it accurately control the tension. Therefore, it cannot overcome the influence of mechanical damping and cannot achieve precise control of tape release under low tension.

[0005] The technical protection points of this invention are twofold:

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] An active tape-releasing concentric wrapping device includes a base and a tension control device body. A first motor is fixedly installed inside the base, and a second motor is installed on one side of the first motor. The output shaft of the first motor is connected to an outer pulley via a first conveyor belt, and the output shaft of the second motor is connected to an inner pulley via a second conveyor belt. The outer pulley is connected to an inner turntable via an inner rotating shaft, and the inner pulley is connected to an outer turntable via an outer rotating shaft. The inner rotating shaft is inserted into the outer rotating shaft, and one end of the inner rotating shaft is connected to an end seat fixed to the top of the base via a bearing. The inner rotating shaft and the outer rotating shaft are rotatably connected. Both the inner rotating shaft and the outer rotating shaft are hollow tubes. The inner turntable is located in the middle of the outer turntable, and the tension control device body is installed in the middle of the side wall of the inner turntable.

[0008] A guide belt connector is connected to the side wall of the tension control device body facing the inner turntable. The guide belt connector is aligned with and fixed to the center of the inner turntable, and corresponds to the wire feeding hole in the center of the tension control device body. Above the guide belt connector is an upper guide belt frame fixed to the top of the tension control device body. A first roller is mounted on the top of the upper guide belt frame, and a second roller and a strand roller are mounted on the bottom of the upper guide belt frame. The second roller is located above the strand roller. A lower guide belt frame is fixed to the side wall of the tension control device body away from the inner turntable. A third roller is mounted on the top of the lower guide belt frame, and a wire feeder is located directly below the third roller. A fourth roller is located on the lower conveyor frame. A hanging plate is installed on each of the outer walls of the lower conveyor frame. One end of each hanging plate is fixedly connected to the tension control device body, and the hanging plate is connected to the lower conveyor frame via a rotating shaft. A sensor plate is fixed to the side wall of the lower conveyor frame on each of the two upper rollers. An analog switch fixed to the tension control device body is installed on the front of each of the two sensor plates. Two counterweights are installed at the bottom of the tension control device body. Two mounting blocks are fixed to the side wall of the tension control device body facing the upper conveyor frame, directly opposite the frame of the lower conveyor frame. A compression spring is installed between the mounting blocks and the frame of the lower conveyor frame.

[0009] Preferably, one end of the tension control device body is connected to a guide frame, one end of the guide frame is connected to a storage frame, and one end of the storage frame is connected to a fixed seat fixed on the base.

[0010] Preferably, each of the two side frames of the lower conveyor belt frame and the two mounting blocks is provided with a corresponding mounting groove, and the compression spring is located between the two corresponding mounting grooves.

[0011] Preferably, the lower conveyor belt frame and the tension control device body are movably connected via a rotating shaft.

[0012] Preferably, the working method of the active tape-releasing concentric wrapping device includes the following specific steps:

[0013] Step 1: The wire released by the external wire feeding mechanism is passed through the end of the inner rotating shaft and through the wire feeding hole to the tape storage rack. Then, the tape released by the external tape feeding mechanism is wound around the roller on the outer turntable and then wound with the tension control device body. The tape first passes through the first roller, then the second roller, then the strand roller, then the third roller, and then the fourth roller. After being released by the fourth roller onto the guide frame, it is wrapped with the wire. After completion, the first motor and the second motor are started. The first motor drives the outer pulley to rotate through the first conveyor belt. During the rotation of the outer pulley, the inner rotating shaft rotates in the forward direction, thereby driving the inner turntable to rotate in the forward direction. During the rotation of the inner turntable, the tension control device body rotates together to perform wrapping. The second motor drives the inner pulley to rotate through the second conveyor belt. During the rotation of the inner pulley, the outer rotating shaft rotates in the opposite direction to the inner rotating shaft, thereby driving the outer turntable to rotate in the opposite direction. During the rotation of the outer turntable, the tape is released, realizing simultaneous tape release and wrapping.

[0014] Step Two: During the release and winding of the tape, the lower tape guide frame will swing due to changes in tension. The swing distance of the lower tape guide frame is detected in real time by an analog switch. The analog switch detects the swing amplitude of the lower tape guide frame in cooperation with the induction plate. During the detection process, the electrical signal of the analog switch changes and is fed back to the external controller. The external controller controls the speed of the second motor used for tape release. The tension of the tape release is adjusted by adjusting the speed of the second motor. When the tension is too high, the speed of the second motor is reduced, so that the tension of the tape wound on the tension control device body is released. When the tension is too low, the speed of the second motor is increased, so that the tension of the tape wound on the tension control device body is increased. The tension value is always kept constant.

[0015] The beneficial effects of this invention are as follows: By setting a tension feedback structure composed of a compression spring, an analog switch, and a swingable lower conveyor belt frame, the lower conveyor belt frame is connected to the tension control device body via a rotating shaft and a hanging plate. During the wrapping process, the wrapping tape wound on the tension control device body will swing due to tension changes during release and wrapping. Due to the presence of the compression spring, the swing amplitude is limited by the compression spring. Furthermore, due to the presence of the analog switch and the sensing plate, the swing distance of the lower conveyor belt frame during tape release can be detected in real time by the analog switch. The analog switch... In conjunction with the induction plate, it detects the swing amplitude of the lower belt carrier. During the detection process, the analog switch electrical signal changes and is fed back to the external controller. The external controller controls the speed of the second motor used for unwinding the tape. The tension of the unwinding tape is adjusted by adjusting the speed of the second motor. When the tension is too high, the speed of the second motor is reduced, so that the tension of the tape wound on the tension control device body is released. When the tension is too low, the speed of the second motor is increased, so that the tension of the tape wound on the tension control device body is increased, thereby keeping the tension constant and improving the control accuracy.

[0016] By adopting a belt guide structure with the outer and inner turntables rotating in opposite directions, and by using an analog switch to detect changes in the swing distance of the lower belt carrier to control the second motor for belt feeding, compared with the traditional open-loop mode, the closed-loop control of the belt feeding tension motor can accurately control the tension. Compared with passive belt feeding, it can overcome the mechanical damping effect of excessive tension and elongation, and at the same time achieve low-tension belt feeding. Attached Figure Description

[0017] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the main structure of the tension control device of the present invention;

[0020] Figure 3 This is a side view of the tension control device body of the present invention;

[0021] Figure 4 This is a side view of the tension control device body of the present invention;

[0022] In the diagram: 1. Tension control device body; 2. Upper conveyor frame; 3. Lower conveyor frame; 4. First roller; 5. Second roller; 6. Third roller; 7. Fourth roller; 8. Guide belt joint; 9. Analog switch; 10. Induction plate; 11. Hanging plate; 12. Rotating shaft; 13. Counterweight block; 14. Strand roller; 15. Mounting block; 16. Compression spring; 17. Base; 18. First motor; 19. Second motor; 20. First conveyor belt; 21. Second conveyor belt; 22. Inner pulley; 23. Outer turntable; 24. Inner turntable; 25. Cable release hole; 26. Belt storage rack; 27. Outer pulley. Detailed Implementation

[0023] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figure 1-4 As shown, an active tape-releasing concentric wrapping device includes a base 17 and a tension control device body 1. A first motor 18 is fixedly installed inside the base 17, and a second motor 19 is installed on one side of the first motor 18. The output shaft of the first motor 18 is connected to an outer pulley 27 through a first conveyor belt 20, and the output shaft of the second motor 19 is connected to an inner pulley 22 through a second conveyor belt 21. The outer pulley 27 is connected to an inner turntable 24 through an inner rotating shaft, and the inner pulley 22 is connected to an outer turntable 23 through an outer rotating shaft. The inner rotating shaft is inserted into the outer rotating shaft, and one end of the inner rotating shaft is connected to an end seat fixed on the top of the base 17 by a bearing. The inner rotating shaft and the outer rotating shaft are rotatably connected. Both the inner rotating shaft and the outer rotating shaft are hollow tubes. The inner turntable 24 is located in the middle of the outer turntable 23, and the tension control device body 1 is installed in the middle of the side wall of the inner turntable 24.

[0025] A guide belt connector 8 is connected to the side wall of the tension control device body 1 facing the inner turntable 24. The guide belt connector 8 is aligned with and fixed to the middle of the inner turntable 24, and corresponds to the wire feeding hole 25 in the middle of the tension control device body 1. Above the guide belt connector 8, an upper belt feeder 2 is fixed to the top of the tension control device body 1. A first roller 4 is installed on the top of the upper belt feeder 2, and a second roller 5 and a strand roller 14 are installed at the bottom of the upper belt feeder 2. The second roller 5 is located above the strand roller 14. A lower belt feeder 3 is fixed to the side wall of the tension control device body 1 away from the inner turntable 24. A third roller 6 is installed on the top of the lower belt feeder 3, and a wire feeding hole 25 is located directly below the third roller 6. The fourth roller 7 on the lower conveyor frame 3 has a hanging plate 11 on each of the outer walls of both sides of the lower conveyor frame 3. One end of the hanging plate 11 is fixedly connected to the tension control device body 1, and the hanging plate 11 is connected to the lower conveyor frame 3 through a rotating shaft 12. Each of the two rollers has a sensor plate 10 fixed on the side wall of the lower conveyor frame 3. Each of the two sensor plates 10 has an analog switch 9 fixed on the front of the tension control device body 1. The tension control device body 1 has two counterweights 13 at the bottom. The tension control device body 1 has two mounting blocks 15 fixed on the side wall facing the upper conveyor frame 2, which are directly opposite the frame of the lower conveyor frame 3. A compression spring 16 is installed between the mounting block 15 and the frame of the lower conveyor frame 3.

[0026] One end of the tension control device body 1 is connected to a guide frame, and the other end of the guide frame is connected to a storage rack 26. One end of the storage rack 26 is connected to a fixed seat fixed on the base 17.

[0027] Each side frame of the lower guide frame 3 and each of the two mounting blocks 15 is provided with a corresponding mounting groove, and the compression spring 16 is located between the two corresponding mounting grooves.

[0028] The lower conveyor frame 3 is movably connected to the tension control device body 1 via a rotating shaft 12.

[0029] The working method of this active tape-releasing concentric wrapping device includes the following specific steps:

[0030] Step 1: The wire released by the external wire release mechanism is threaded through the end of the inner rotating shaft and through the wire release hole 25 to the tape storage rack 26. Then, the tape released by the external tape release mechanism is wound around the rollers on the outer turntable 23, and then wound between the tape and the tension control device body 1. The tape first passes through the first roller 4 to the second roller 5, then to the strand roller 14, then to the third roller 6, and then to the fourth roller 7. After being placed on the guide frame by the fourth roller 7, it is wrapped between the tape and the wire. After completion, the first motor 18 and the second motor 19 are started. The first motor 18... The first conveyor belt 20 drives the outer pulley 27 to rotate. During the rotation of the outer pulley 27, the inner shaft rotates in the forward direction, which in turn drives the inner turntable 24 to rotate in the forward direction. During the rotation of the inner turntable 24, the tension control device body 1 rotates together to wrap the package. The second motor 19 drives the inner pulley 22 to rotate through the second conveyor belt 21. During the rotation of the inner pulley 22, the outer shaft rotates in the opposite direction to the inner shaft, which in turn drives the outer turntable 23 to rotate in the opposite direction. During the rotation of the outer turntable 23, the belt is released, realizing the simultaneous release of belt and wrapping of the package.

[0031] Step 2: During the release and winding process of the tape, the lower tape guide 3 will swing due to changes in tension. The swing distance of the lower tape guide 3 is detected in real time by the analog switch 9. The analog switch 9 detects the swing amplitude of the lower tape guide 3 in cooperation with the sensing plate 10. During the detection process, the electrical signal of the analog switch 9 changes and is fed back to the external controller. The external controller controls the speed of the second motor 19 for tape release. The tension of the tape release is adjusted by adjusting the speed of the second motor 19. When the tension is too high, the speed of the second motor 19 is reduced, so that the tape wound on the tension control device body 1 is released. When the tension is too low, the speed of the second motor 19 is increased, so that the tension of the tape wound on the tension control device body 1 is increased. The tension value is always kept constant.

[0032] In use, the wire released by the external wire release mechanism is passed through the end of the inner rotating shaft and through the wire release hole 25 to the tape storage rack 26. Then, the tape released by the external tape release mechanism is wound around the rollers on the outer turntable 23, and then wound between the tape and the tension control device body 1. The tape first passes through the first roller 4 to the second roller 5, then to the strand roller 14, then to the third roller 6, and then to the fourth roller 7. After being placed on the guide frame by the fourth roller 7, it is wrapped between the tape and the wire. After completion, the first motor 18 and the second motor 19 are started. The first motor 18 drives the outer pulley 27 to rotate via the first conveyor belt 20. During the rotation of the outer pulley 27… The inner rotating shaft rotates in the forward direction, which in turn rotates the inner turntable 24 in the forward direction. During the rotation of the inner turntable 24, the tension control device body 1 rotates together to perform wrapping. The second motor 19 drives the inner pulley 22 to rotate via the second conveyor belt 21. During the rotation of the inner pulley 22, the outer rotating shaft rotates in the opposite direction to the inner rotating shaft, which in turn drives the outer turntable 23 to rotate in the opposite direction. The outer turntable 23 releases the tape during rotation, achieving simultaneous tape release and wrapping. Since the lower conveyor frame 3 and the tension control device body 1 are connected via the rotating shaft 12 and the hanging plate 11, the tape wound on the tension control device body 1 during the wrapping process is released and wound. During the process, the lower belt carrier 3 will swing due to changes in tension. The swing amplitude is limited by the compression spring 16. Furthermore, the analog switch 9 and the sensing plate 10 allow the analog switch 9 to detect the swing distance of the lower belt carrier 3 in real time during tape unloading. The analog switch 9 detects the swing amplitude of the lower belt carrier 3 in cooperation with the sensing plate 10. During detection, the electrical signal of the analog switch 9 changes and is fed back to an external controller. The external controller then controls the speed of the second motor 19 used for tape unloading. Adjusting the speed of the second motor 19 regulates the tape unloading tension. When the force is too great, the second motor 19 reduces its speed, allowing the tension of the tape wound on the tension control device body 1 to be released. When the tension is too small, the second motor 19 increases its speed, allowing the tension of the tape wound on the tension control device body 1 to be increased, thus keeping the tension constant and improving the accuracy of control. The second motor 19 for tape release is controlled by detecting the change in the swing distance of the lower tape carrier 3 using the analog switch 9. Compared with the traditional open-loop mode, the closed-loop control of the tape release tension motor can accurately control the tension. Compared with passive tape release, it can overcome the mechanical damping effect of excessive tension and elongation, and at the same time achieve tape release with small tension.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A concentric wrapping device for active tape release, comprising a base (17) and a tension control device body (1), characterized in that, A first motor (18) is fixedly installed inside the base (17). A second motor (19) is installed on one side of the first motor (18). The output shaft of the first motor (18) is connected to an outer pulley (27) through a first conveyor belt (20). The output shaft of the second motor (19) is connected to an inner pulley (22) through a second conveyor belt (21). The outer pulley (27) is connected to an inner turntable (24) through an inner rotating shaft. The inner pulley (22) is connected to an outer turntable (23) through an outer rotating shaft. The inner rotating shaft is inserted into the interior of the outer rotating shaft. One end of the inner rotating shaft is connected to the end seat fixed on the top of the base (17) by a bearing. The inner rotating shaft and the outer rotating shaft are rotatably connected. Both the inner rotating shaft and the outer rotating shaft are hollow tubes. The inner turntable (24) is located in the middle of the outer turntable (23). The tension control device body (1) is installed in the middle of the side wall of the inner turntable (24). A guide belt connector (8) is connected to the side wall of the tension control device body (1) facing the inner turntable (24). The guide belt connector (8) is connected and fixed to the middle of the inner turntable (24), and the guide belt connector (8) corresponds to the wire release hole (25) in the middle of the tension control device body (1). An upper belt guide frame (2) is provided above the guide belt connector (8) and fixed to the top of the tension control device body (1). A first roller is installed on the top of the upper belt guide frame (2). (4), and a second roller (5) and a strand roller (14) are installed at the bottom of the upper conveyor frame (2). The second roller (5) is located above the strand roller (14). A lower conveyor frame (3) is fixed on the side wall of the tension control device body (1) away from the inner turntable (24). A third roller (6) is installed on the top of the lower conveyor frame (3). A fourth roller (7) is located on the lower conveyor frame (3) directly below the third roller (6). Each of the two outer walls of the lower conveyor belt (3) is provided with a hanging plate (11). One end of the hanging plate (11) is fixedly connected to the tension control device body (1), and the hanging plate (11) and the lower conveyor belt (3) are connected by a rotating shaft (12). Above each of the two hanging plates (11) is a sensing plate (10) fixed to the side wall of the lower conveyor belt (3). The front of each of the two sensing plates (10) is provided with a device fixed to the tension control device body (1). The main body has an analog switch (9), and the tension control device body (1) has two counterweights (13) at the bottom. The tension control device body (1) has two mounting blocks (15) fixed on the side wall facing the upper belt frame (2) and facing the frame of the lower belt frame (3). A compression spring (16) is installed between the mounting block (15) and the frame of the lower belt frame (3). The lower belt frame (3) is movably connected to the tension control device body (1) through a rotating shaft (12). One end of the tension control device body (1) is connected to a guide frame, and one end of the guide frame is connected to a storage rack (26). One end of the storage rack (26) is connected to a fixed seat fixed on the base (17).

2. The active tape-releasing concentric wrapping device according to claim 1, characterized in that, The lower guide frame (3) has a corresponding mounting groove on both sides of the frame and on the two mounting blocks (15), and the compression spring (16) is located between the two corresponding mounting grooves.

3. The active tape-releasing concentric wrapping device according to claim 1, characterized in that, The working method of this active tape-releasing concentric wrapping device includes the following specific steps: Step 1: The cable released by the external cable release mechanism is passed through the end of the inner rotating shaft and through the cable release hole (25) to the tape storage rack (26). Then, the tape released by the external cable release mechanism is wound around the roller on the outer turntable (23) and then wound with the tension control device body (1). The tape first passes through the first roller (4) to the second roller (5), then to the strand roller (14), then to the third roller (6), and then to the fourth roller (7). After being placed on the guide frame by the fourth roller (7), it is wrapped with the wire. After completion, the first motor (18) and the second motor (19) are started. The first motor (18) The first conveyor belt (20) drives the outer pulley (27) to rotate. During the rotation of the outer pulley (27), the inner shaft rotates in the forward direction, thereby driving the inner turntable (24) to rotate in the forward direction. During the rotation of the inner turntable (24), the tension control device body (1) rotates together to wrap the package. The second motor (19) drives the inner pulley (22) to rotate through the second conveyor belt (21). During the rotation of the inner pulley (22), the outer shaft rotates in the opposite direction to the inner shaft, thereby driving the outer turntable (23) to rotate in the opposite direction. During the rotation of the outer turntable (23), the belt is released, realizing the wrapping of the package while releasing the belt. Step 2: During the release and winding process of the tape, the lower tape carrier (3) will swing due to the change in tension. The swing distance of the lower tape carrier (3) is detected in real time by the analog switch (9). The analog switch (9) detects the swing amplitude of the lower tape carrier (3) by cooperating with the induction plate (10). During the detection process, the electrical signal of the analog switch (9) changes and is fed back to the external controller. The external controller controls the speed of the second motor (19) for tape release. The tension of tape release is adjusted by adjusting the speed of the second motor (19). When the tension is too high, the speed of the second motor (19) is reduced, so that the tape wound on the tension control device body (1) is released. When the tension is too low, the speed of the second motor (19) is increased, so that the tension of the tape wound on the tension control device body (1) is increased. The tension is always kept constant.

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