Tension control device

Abstract

The utility model discloses a tension control device which comprises a support, a power tape releasing mechanism arranged on the support and used for releasing a wrapping tape, a swing rod tension mechanism used for tensioning the wrapping tape released by the power tape releasing mechanism, and a tension detection mechanism used for detecting the tension of the wrapping tape. The oscillating bar tension mechanism comprises a supporting seat, a floating tensioning mechanism and a counterweight mechanism; the floating tensioning mechanism comprises a floating frame and a floating roller; the floating roller is tightly pressed on the wrapping tape; an arc-shaped induction sheet is arranged on the floating frame; a first position sensor is arranged at the position, corresponding to the arc-shaped induction piece, of the support. The counterweight mechanism comprises a counterweight block mounting frame and a counterweight block arranged on the counterweight block mounting frame; and the balancing weight mounting frame is mounted on the floating frame. The tension control device provided by the utility model can be used for adjusting the taping tension, thereby ensuring the performance and appearance of the taped cable.

Description

Technical Field

[0001] The utility model belongs to the technical field of preparation of tape-wrapped cables, and particularly relates to a tension control device. Background Art

[0002] During the production process of cables, the longitudinal wrapping process is involved. The longitudinal wrapping materials include aluminum foil, copper foil, polyurethane tape, etc. The traditional tape reel unwinding method is to place the tape reel on a passive unwinding shaft. The fixed end of the unwinding shaft generates passive tension through a friction belt or a brake. The tape is pulled into the longitudinal wrapping forming die passively along the advancing direction of the cable, and then wrapped on the surface of the cable. Due to the lack of other controls, the wrapping force of the tape on the cable surface is uneven. If not manually adjusted, it is easy to cause inconsistent tensions when the reel is full and less than full, resulting in unqualified performance of the tape-wrapped cable. Content of the Utility Model

[0003] In order to overcome the deficiencies existing in the prior art, the utility model provides a tension control device, which can be used to adjust the tension of the tape, so as to ensure the performance and appearance of the tape-wrapped cable.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A tension control device includes a bracket, a power unwinding mechanism arranged on the bracket for releasing the tape, a swing rod tension mechanism for tensioning the tape released by the power unwinding mechanism, and a tension detection mechanism for detecting the tension of the tape; wherein,

[0006] The swing rod tension mechanism includes a support seat arranged on the bracket, a floating tensioning mechanism and a counterweight mechanism arranged on the support seat, wherein,

[0007] The floating tensioning mechanism includes a floating frame and a floating roller arranged on the floating frame. The floating frame is rotatably connected to the support seat through a rotating shaft; the floating roller is installed at the end of the floating frame far from the rotating shaft; the tape coming out of the power unwinding mechanism passes through the bottom of the floating roller and then enters the tension detection mechanism upward; the floating roller presses on the tape; an arc-shaped induction sheet is arranged on the floating frame; a first position sensor is arranged on the bracket at a position corresponding to the arc-shaped induction sheet; the counterweight mechanism includes a counterweight block mounting frame and a counterweight block arranged on the counterweight block mounting frame; the counterweight block mounting frame is installed on the floating frame.

[0008] Preferably, a tape break sensor is arranged above the first position sensor, and an induction rod is arranged at the upper end of the arc-shaped induction sheet.

[0009] Preferably, a limit block is provided between the support base and the floating frame. The limit block is composed of a rotating part and a limiting part. Among them, the rotating part is rotatably connected to the support base, and an arc-shaped limiting groove is provided on the rotating part. The rotating part is locked by passing a locking bolt through the arc-shaped limiting groove; the limiting part extends along the radial direction of the rotating part; a limiting post is provided on the floating frame, and the floating frame rotates downward until the limiting post contacts the limiting part of the limit block.

[0010] Preferably, the power tape feeding mechanism includes a driving tape feeding shaft provided on the bracket and a driving motor for driving the driving tape feeding shaft to rotate. Among them, the driving tape feeding shaft is connected to the main shaft of the driving motor through a coupling.

[0011] Preferably, the power tape feeding mechanism further includes a tape reel top cone and a locking nut. Among them, one end of the driving tape feeding shaft is connected to the main shaft of the driving motor through a coupling, and the other end is provided with a threaded section. The tape reel top cone is installed on the driving tape feeding shaft; the locking nut is installed on the driving tape feeding shaft and is located outside the tape reel top cone to fix tape reels of different widths.

[0012] Preferably, an automatic deviation correction mechanism is further included for automatically correcting the deviation of the packing tape coming out of the swing rod tension mechanism. The automatic deviation correction mechanism includes a frame and a deviation detection mechanism and a deviation correction mechanism provided on the frame. Among them,

[0013] The deviation detection mechanism includes a mounting seat provided on the frame and a deviation sensor provided on the mounting seat. Among them, a groove for the packing tape to pass through is provided on the mounting seat, and there are two groups of deviation sensors, which are respectively arranged on both sides of the groove;

[0014] The deviation correction mechanism includes a slide rail provided on the frame, a slide table provided on the slide rail, and a correction driving mechanism for driving the slide table to move. Among them, the bracket is installed on the slide table.

[0015] Preferably, an adjusting assembly is provided between the deviation sensor and the mounting seat for adjusting the distance between the two groups of deviation sensors.

[0016] Preferably, a second position sensor for detecting the position of the slide table is provided on the frame. There are two groups of second position sensors, and both groups of second position sensors are installed on the frame and are located on the left and right sides of the slide table.

[0017] Preferably, the tension detection mechanism includes a fixed seat arranged on the frame, a guide roller group arranged on the fixed seat, and a tension sensor. The tape coming out of the automatic deviation rectifying mechanism successively passes around the guide roller group.

[0018] Preferably, it further includes a tension display and control unit, which includes a tension display and a control module. The tension display is used to display the magnitude of the tension.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] 1. The tension control device of the present invention can adjust the tension of the tape through the swing rod tension mechanism, that is, by placing appropriate counterweights to meet different tension requirements, thereby ensuring the stability of the tape tension, and the stability of the tape tension ensures the stability of the cable performance.

[0021] 2. The tension control device of the present invention realizes real-time monitoring of the tension of the tape through the tension detection mechanism, so as to perform real-time control of the tension, thereby further ensuring the stability of the tape tension. Description of the Drawings

[0022] Figures 1 - 5 is a schematic structural diagram of the tension control device of the present invention, where Figure 1 and Figure 2 are three-dimensional structural diagrams from two different perspectives, Figure 3 is the front view, Figure 4 is the left view, Figure 5 is the right view.

[0023] Figure 6 is a schematic structural diagram of the power tape releasing mechanism.

[0024] Figures 7 - 9 are three-dimensional structural diagrams from three different perspectives of the swing rod tension mechanism.

[0025] Figure 10 is a schematic structural diagram of the tension detection mechanism. Detailed Embodiment

[0026] The following further describes the present invention in detail in conjunction with the embodiments and the drawings, but the embodiments of the present invention are not limited thereto.

[0027] Refer to Figures 1 - 10 , the tension control device of the present invention includes a bracket 7, a power tape releasing mechanism 2 arranged on the bracket 7 for releasing the tape, a swing rod tension mechanism 3 for tensioning the tape released by the power tape releasing mechanism 2, and a tension detection mechanism 5 for detecting the tension of the tape; where

[0028] The swing rod tension mechanism 3 includes a support base 301 arranged on the bracket 7, a floating tensioning mechanism and a counterweight mechanism arranged on the support base 301. Among them,

[0029] The floating tensioning mechanism includes a floating frame 305 and a floating roller 313 arranged on the floating frame 305. Among them, the floating frame 305 is rotatably connected to the support base 301 through a rotating shaft 302; the floating roller 313 is installed at the end of the floating frame 305 far from the rotating shaft 302; the packing tape coming out of the power tape feeding mechanism 2 passes through the bottom of the floating roller 313 and enters the tension detection mechanism 5 upward; the floating roller 313 presses on the packing tape; an arc-shaped induction piece 310 is arranged on the floating frame 305; a first position sensor 309 is arranged on the bracket 7 at a position corresponding to the arc-shaped induction piece 310; the counterweight mechanism includes a counterweight block mounting frame 307 and a counterweight block arranged on the counterweight block mounting frame 307; the counterweight block mounting frame 307 is installed on the floating frame 305;

[0030] In this embodiment, a limit block 303 is arranged between the support base 301 and the floating frame 305. The limit block 303 is composed of a rotating part and a limiting part. Among them, the rotating part is rotatably connected to the support base 301, and an arc-shaped limit groove 304 is arranged on the rotating part. The rotating part is locked by passing a locking bolt through the arc-shaped limit groove 304; the limiting part extends along the radial direction of the rotating part; a limit post 306 is arranged on the floating frame 305, and the floating frame 305 rotates downward until the limit post 306 contacts the limiting part in the limit block 303.

[0031] With the above settings, during use, the tape passes under the floating roller 313, driving the floating frame 305 to swing upward. At this time, the distance between the first position sensor 309 and the arc-shaped induction piece 310 changes; an arc-shaped slotted hole 311 can be provided on the arc-shaped induction piece 310, and the optimal induction position of the first position sensor 309 can be adjusted by adjusting the fixed position of the arc-shaped slotted hole 311; the first position sensor 309 transmits a signal to the control module. When the tape breaks, the floating frame 305 will swing downward under the action of its own gravity and the gravity of the floating roller 313 and the counterweight, and then fall to contact the limit block 303 and stop. Since the limit block 303 is provided with an arc-shaped limit groove 304, the falling stop position of the floating frame 305 can be adjusted by adjusting the fixed position of the arc-shaped slotted hole 304; at this time, the tape break induction sensor 308 senses the induction block 312 at the uppermost part of the arc-shaped induction piece 310, and the tape break induction sensor 308 transmits the tape break signal to the control module. The tension of the tape can meet different tension requirements by placing appropriate counterweights on the counterweight mounting frame 307.

[0032] See Figures 1 - 10 , the power tape releasing mechanism 2 includes a driving tape releasing shaft 204 provided on the bracket 7 and a driving motor 201 for driving the driving tape releasing shaft 204 to rotate. Among them, the driving tape releasing shaft 204 is connected to the main shaft of the driving motor 201 through a coupling;

[0033] In this embodiment, the power tape releasing mechanism 2 further includes a tape reel top cone 202 and a locking nut 203. Among them, one end of the driving tape releasing shaft 204 is connected to the main shaft of the driving motor 201 through a coupling, and the other end is provided with a threaded section. The tape reel top cone 202 is installed on the driving tape releasing shaft 204, and the locking nut 203 is installed on the threaded section and located outside the tape reel top cone 202 to fix tape reels of different widths.

[0034] In the present utility model, the signal generated by the change in the distance between the first position sensor 309 and the arc-shaped induction piece 310 of the swing rod tension mechanism 3 is transmitted to the control module. The control module gives a signal through PID operation to control the driving motor 201 to drive the driving tape releasing shaft 204 to rotate, and controls the tape releasing speed of the driving tape releasing shaft 204, so that the floating roller 313 always remains in the same position, thereby ensuring the stability of the tape tension. The stability of the tape tension ensures the stability of the cable performance.

[0035] See Figures 1 - 10 , the tension control device of the present utility model further includes an automatic deviation correction mechanism 4 for automatically correcting the tape coming out of the swing rod tension mechanism 3. The automatic deviation correction mechanism 4 includes a frame 1 and a deviation correction detection mechanism and a deviation correction mechanism provided on the frame 1. Among them,

[0036] The deviation correction detection mechanism includes a mounting seat 405 provided on the frame 1 and a deviation correction sensor 406 provided on the mounting seat 405. Among them, a groove 407 for the tape to pass through is provided on the mounting seat 405, and the deviation correction sensor 406 is provided on both sides of the groove 407;

[0037] The deviation correction mechanism includes a slide rail 403 provided on the frame 1, a slide table 402 provided on the slide rail 403, and a correction driving mechanism 401 for driving the slide table 402 to move. Among them, the bracket 7 is mounted on the slide table 402.

[0038] With the above settings, during use, the tape passes through the middle of the deviation correction sensors 406 on the left and right sides. When the tape passes through the groove 407, if the tape is not located at the center position of the groove 407, it will be sensed by the deviation correction sensor 406. At this time, the deviation correction sensor 406 transmits a signal to the control module, and the control module controls the correction driving mechanism 401 to drive the slide table 402 to move, so that the tape always enters the tape at the same position of the groove 407, thereby ensuring the stability of the inlet butt joint all the time, and further ensuring the smooth appearance and stable performance of the cable.

[0039] In addition, an adjustment component for adjusting the distance between the two sets of deviation correction sensors 406 is provided between the deviation correction sensor 406 and the mounting seat 405. The adjustment component can be implemented with reference to existing devices, or by changing the installation positions of the deviation correction sensors 406 on the left and right sides, or by a sliding connection structure. That is, when it is necessary to adjust the distance between the deviation correction sensors 406 on the left and right sides, the screw can be loosened, and then the slider can be moved. After adjusting to the appropriate position, the slider can be locked.

[0040] See Figures 1 - 10 , a second position sensor 404 for detecting the position of the slide table 402 is provided on the frame 1. There are two sets of the second position sensors 404, and both sets of the second position sensors 404 are mounted on the frame 1 and are located on the left and right sides of the slide table 402 for restricting the moving stroke of the slide table 402. That is, the moving stroke of the slide table 402 is the distance between the second position sensors 404 on the left and right sides; when the displacement is abnormal, the second position sensor 404 detects and transmits a signal to the control module, and the control module issues an alarm signal.

[0041] See Figures 1 - 10, the tension detection mechanism 5 includes a fixed seat provided on the frame 1, a guide roller group 502 provided on the fixed seat, and a tension sensor 501. Among them, the tape coming out of the automatic deviation correction mechanism 4 sequentially passes around the guide roller group 502; in addition, the tension detection device further includes a tension display and control unit 6, and the tension display and control unit 6 includes a tension display and a control module. Among them, the tension display is used to display the magnitude of the tension.

[0042] With the above settings, during use, the tape coming out of the automatic deviation correction mechanism 4 passes through the guide roller group 502 and the tension sensor 501. Among them, the tension sensor 501 transmits the tension signal of the tape to the tension display and the control module. The tension display is used to display the real-time tension signal. The tension tolerance range of the tension display can be set. When the tension tolerance range is exceeded, an alarm or stop signal is given, so that problems can be found in time, which also ensures the stability requirement of the tension.

[0043] See Figures 1 - 10 . A fixed guide roller 8 is installed on the upper part of the sliding table 402. The lengths of the fixed guide roller 8 and the floating roller 313 are both greater than the width of the tape reel; when the tape reel is replaced with a different specification, the setting that the lengths of the fixed guide roller 8 and the floating roller 313 are greater than the width of the tape reel can meet the usage requirements of different tape reels.

[0044] See Figures 1 - 10 , the working principle of the tension control device of the present utility model is:

[0045] Place the tape reel on the active tape feeding shaft 204, fix the tape reel in place through the tape reel top cone 202 and the locking nut 203, pull out the starting end of the tape, and then sequentially pass through the floating roller 313, the fixed guide roller 8, the deviation correction sensor 406, the tension sensor 501 and the guide roller group 502, and then enter the cable inlet die for automatic lamination and forming; among them, the magnitude of the tape tension is adjusted by placing a counterweight on the counterweight mounting frame of the swing rod tension mechanism 3. When the production line is running, the traction cable advances, the tape adheres to the cable and advances with the cable, and the tape drives the floating roller 313 and the floating frame 305 to swing upward. At this time, the distance between the first position sensor 309 and the arc-shaped induction piece 310 changes. The first position sensor 309 transmits the signal to the control module, and the control module gives a signal through PID operation to control the driving motor 201 to drive the rotation speed of the active tape feeding shaft 204, so as to control the tape feeding speed, so that the floating roller 313 always remains in the same position, thereby ensuring the stability of the tape tension, and the stability of the tape tension ensures the stability of the cable performance.

[0046] The tape passes through the middle of the deviation rectifying sensors 406 on the left and right sides. When the tape passes through the groove 407, if the tape is not located at the center position of the groove 407, it will be sensed by the deviation rectifying sensor 406. At this time, the deviation rectifying sensor 406 transmits a signal to the control module, and the control module controls the correction driving mechanism 401 to drive the sliding table 402 to move, so that the tape is always fed at the same position, thus ensuring the stability of the feeding butt joint all the time, and further ensuring the smooth appearance and stable performance of the cable.

[0047] The tape coming out of the automatic deviation rectifying mechanism 4 passes through the guide roller group 502 and the tension sensor 501. Among them, the tension sensor 501 transmits the tension signal of the tape to the tension display and the control module. The tension display is used to display the real-time tension signal. The tension tolerance range of the tension display can be set. When the tension exceeds the tolerance range, an alarm or stop signal is given, so that problems can be detected in time, which also ensures the stability requirement of the tension.

[0048] In the above process, when the displacement is abnormal, the second position sensor 404 detects and transmits a signal to the control module, and the control module issues an alarm signal;

[0049] When the tape breaks, the floating frame 305 will swing downward under the action of its own gravity and the gravity of the floating roller 313 and the counterweight, and then fall to contact with the limit block 303 and stop. Since the limit block 303 is provided with an arc-shaped limit groove 304, the falling stop position of the floating frame 305 can be adjusted by adjusting the fixed position of the arc-shaped limit groove 304; at this time, the tape break induction sensor 308 senses the induction block at the uppermost part of the arc-shaped induction piece 310, and the tape break induction sensor 308 transmits the tape break signal to the control module, and the control module gives a tape break alarm signal;

[0050] When the tape reel changes its specification, the lengths of the fixed guide roller 8 and the floating roller 313 are both greater than the width of the tape reel, so as to meet the use requirements of different tape reels.

[0051] The above is a preferred embodiment of the present invention, but the embodiments of the present invention are not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be equivalent replacement methods and shall be included in the protection scope of the present invention.

Claims

1. A tension control device, characterized in that, It includes a bracket, a power tape releasing mechanism arranged on the bracket for releasing a tape, a swing rod tension mechanism for tensioning the tape released by the power tape releasing mechanism, and a tension detection mechanism for detecting the tension of the tape; wherein, The swing rod tension mechanism includes a support seat arranged on the bracket, a floating tensioning mechanism and a counterweight mechanism arranged on the support seat, wherein, The floating tensioning mechanism includes a floating frame and a floating roller arranged on the floating frame. The floating frame is rotatably connected to the support seat through a rotating shaft; the floating roller is installed at the end of the floating frame far from the rotating shaft; the tape coming out of the power tape releasing mechanism passes through the bottom of the floating roller and then enters the tension detection mechanism upward; the floating roller presses against the tape; an arc-shaped induction piece is arranged on the floating frame; a first position sensor is arranged on the bracket at a position corresponding to the arc-shaped induction piece; the counterweight mechanism includes a counterweight block mounting frame and a counterweight block arranged on the counterweight block mounting frame; the counterweight block mounting frame is installed on the floating frame.

2. The tension control device according to claim 1, characterized in that, A tape break sensor is arranged above the first position sensor, and an induction rod is arranged at the upper end of the arc-shaped induction piece.

3. The tension control device according to claim 1, characterized in that, A limiting block is arranged between the support seat and the floating frame. The limiting block is composed of a rotating part and a limiting part. The rotating part is rotatably connected to the support seat, and an arc-shaped limiting groove is arranged on the rotating part. The rotating part is locked by passing a locking bolt through the arc-shaped limiting groove; the limiting part extends along the radial direction of the rotating part; a limiting column is arranged on the floating frame, and the floating frame rotates downward until the limiting column contacts the limiting part in the limiting block.

4. The tension control device according to claim 1, wherein The power tape releasing mechanism includes a driving tape releasing shaft arranged on the bracket and a driving motor for driving the driving tape releasing shaft to rotate. The driving tape releasing shaft is connected to the main shaft of the driving motor through a coupling.

5. The tension control device according to claim 4, characterized in that The power tape releasing mechanism further includes a tape reel top cone and a locking nut. One end of the driving tape releasing shaft is connected to the main shaft of the driving motor through a coupling, and the other end is provided with a threaded section. The tape reel top cone is installed on the driving tape releasing shaft; the locking nut is installed on the driving tape releasing shaft and is located outside the tape reel top cone to fix tape reels of different widths.

6. The tension control device according to claim 1, characterized in that, It further includes an automatic deviation correction mechanism for automatically correcting the deviation of the tape coming out of the swing rod tension mechanism. The automatic deviation correction mechanism includes a frame and a deviation correction detection mechanism and a deviation correction mechanism arranged on the frame, wherein, The deviation correction detection mechanism includes a mounting seat arranged on the frame and a deviation correction sensor arranged on the mounting seat. A groove for the tape to pass through is arranged on the mounting seat. The deviation correction sensors are in two groups and are respectively arranged on both sides of the groove; The deviation correction mechanism includes a slide rail arranged on the frame, a slide table arranged on the slide rail, and a correction driving mechanism for driving the slide table to move. The bracket is installed on the slide table.

7. The tension control device according to claim 6, wherein, An adjustment component for adjusting the distance between two sets of deviation correction sensors is provided between the deviation correction sensors and the mounting base.

8. The tension control device according to claim 6, characterized in that A second position sensor for detecting the position of the sliding table is provided on the frame. There are two sets of the second position sensors, both of which are mounted on the frame and located on the left and right sides of the sliding table.

9. The tension control device according to claim 1, wherein, The tension detection mechanism includes a fixed seat provided on the frame, a guide roller set provided on the fixed seat, and a tension sensor. The tape coming out of the automatic deviation correction mechanism sequentially passes around the guide roller set.

10. The tension control device according to claim 1, wherein, It further includes a tension display and control unit, which includes a tension display and a control module. The tension display is used to display the magnitude of the tension.

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