Constant-tension taping machine for cable wrapping

Abstract

The invention relates to the field of taping machines, and particularly discloses a constant-tension taping machine for cable taping, which comprises a machine base and a taping frame, an outer shaft and an inner shaft which are concentric are arranged on the machine base, the inner shaft penetrates through the outer shaft and is movably connected with the outer shaft, the taping frame is fixed at the upper end of the outer shaft, and a winding tray fixed on the inner shaft is arranged in the taping frame. The inner shaft is fixedly connected with a large fluted disc, the wrapping frame is provided with a tension sensor, the tension sensor is provided with a small gear, the small gear is meshed with the large fluted disc, and the large fluted disc is provided with a tension swing rod; the large fluted disc is meshed with the small gear, the tension swing rod is in transmission connection with the tension sensor, the tension sensor detects the constant tension of the micropore belt on line, the problem of instant fluctuation of the tension is solved through displacement of the tension swing rod, and the tension of the micropore belt is kept consistent from a full disc to an empty disc by adjusting and controlling the rotating speed difference of the inner shaft and the outer shaft. The real-time consistency of the wrapping tension is realized, and the consistency of the microporous belt bypassing the outer diameter of the insulated wire core is ensured.

Description

Technical Field

[0001] The invention relates to the field of taping machines, in particular to a constant tension taping machine used for cable wrapping. Background Art

[0002] With the development of avionics technology, bus technology has become the most important component of avionics systems. As the structure of aviation and aerospace electronic systems becomes more complex, the amount of digital information in the entire system has increased dramatically. At present, the FEP medium used in military data cables can only achieve a transmission speed of 5.2ns / m. Although the civilian foamed PE data cable can achieve 4.2ns / m, the ambient temperature resistance of the foamed PE medium can only reach -40℃~70℃, which cannot meet the harsh ambient temperature requirements. The foamed FEP medium is limited by production equipment and has not been fully promoted in high-frequency data cables. It only stays in the small batch trial production stage. In full consideration of the harsh requirements of various performances of the data cable, especially the requirements of transmission rate, attenuation, and operating temperature range, we use polytetrafluoroethylene microporous tape for insulation material.

[0003] At present, the tension systems of wrapping machines in the cable industry mainly use mechanical friction plate tension control systems, hysteresis and magnetic powder tension control systems. These devices cannot achieve online measurement of constant tension. Although some equipment manufacturers have launched a coil-diameter ratio simulation constant tension system, they can only roughly control the tension change of the wrapping tape from a full reel to an empty reel to adjust the hysteresis tension control work, but cannot control the real-time consistency of the wrapping tension, and cannot ensure the consistency of the outer diameter of the microporous tape wrapped around the insulated wire core. To this end, this application proposes a constant tension tape wrapping machine for cable wrapping to solve the above problems. Summary of the invention

[0004] In view of the existing problems, the present invention provides a constant tension taping machine for cable wrapping, which can effectively solve the problems raised in the background technology.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] A constant tension tape wrapping machine for cable wrapping comprises a machine base and a wrapping frame, wherein the machine base is provided with two concentric outer shafts and an inner shaft, wherein the outer shaft is movably connected to the machine base, wherein the inner shaft passes through the outer shaft and is movably connected to the outer shaft, wherein the wrapping frame is fixed to the upper end of the outer shaft, wherein a winding tray fixed to the inner shaft is provided in the wrapping frame, wherein a large toothed disc is fixedly connected to the inner shaft, wherein a tension sensor is installed on the wrapping frame, wherein a pinion is installed on the tension sensor, wherein the pinion is meshed with the large toothed disc, wherein a tension swing rod is installed on the large toothed disc, and wherein the winding tray is used for installing a microporous tape disc and the microporous tape is wound around the tension swing rod.

[0007] As a further solution of the present invention: the wrapping frame includes a chassis and a top ring, the chassis is fixedly connected to the top ring through a column, the column is equipped with a side guide pulley, the top ring is equipped with a top guide pulley, the top ring is fixedly connected to an inner bracket, and the inner bracket is equipped with a tape feeding guide pulley.

[0008] As a further solution of the present invention: a plurality of guide pillars are fixedly connected between the bottom plate and the top ring, and the microporous belt bypasses the guide pillars.

[0009] As a further solution of the present invention: there are two tension swing rods, and the upper ends of the tension swing rods are fixedly connected with rotating wheels, and the rotating wheels are in contact with the inner wall of the top ring.

[0010] As a further solution of the present invention: the toothed disc is provided with two tooth surfaces, and there are also two matching tension sensors, and the pinion connected to the tension sensor is respectively meshed with the two tooth surfaces on the toothed disc.

[0011] As a further solution of the present invention: the lower end of the inner shaft extends out of the outer shaft and the extended part is fixedly connected to the first transmission wheel, the outer shaft is located below the base and is provided with a second transmission wheel, the first transmission wheel is connected to the first servo motor through a first transmission belt, and the second transmission wheel is transmission-connected to the second servo motor through a second transmission belt.

[0012] As a further solution of the present invention: the outer shaft is located above the machine base and is rotatably connected to a third transmission wheel, and the third transmission wheel is connected to the hysteresis tension controller through a third transmission belt.

[0013] As a further solution of the present invention: the upper end of the inner shaft is rotatably connected to a coaxial winding shaft, the inner shaft is provided with a first central through hole, and the winding shaft is provided with a second central through hole coaxial with the first central through hole, and the outer wall of the winding shaft is provided with a winding wire hole connected to the second central through hole along the axial direction.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention meshes the large toothed disc with the small gear to drive the tension rocker arm to the tension sensor, so that the tension sensor can detect the constant tension of the microporous belt online, and solves the problem of instantaneous tension fluctuations by the displacement of the tension rocker arm. The tension of the microporous belt is kept consistent from a full disk to an empty disk by adjusting the speed difference between the inner shaft and the outer shaft, so that the real-time consistency of the wrapping tension is achieved, and the consistency of the outer diameter of the microporous belt wrapped around the insulated core is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a constant tension taping machine for cable taping;

[0016] Figure 2It is a schematic diagram of the overall structure of a constant tension taping machine for cable taping;

[0017] Figure 3 for Figure 2 Schematic diagram of the AA section;

[0018] Figure 4 for Figure 3 Schematic diagram of the structure of the middle wrapping part;

[0019] Figure 5 It is a three-dimensional schematic diagram of a wrapping frame in a constant tension taping machine for cable wrapping;

[0020] Figure 6 It is a three-dimensional schematic diagram of a part of a wrapping frame in a constant tension taping machine for cable wrapping;

[0021] Figure 7 The present invention is a schematic diagram of the connection between the tension swing arm and the large toothed disc in a constant tension taping machine for cable wrapping.

[0022] In the figure: 1. base; 2. wrapping frame; 21. chassis; 22. top ring; 23. column; 24. side guide pulley; 25. top guide pulley; 26. inner bracket; 27. tape feed guide pulley; 28. guide column; 3. outer shaft; 4. inner shaft; 5. large gear plate; 6. tension sensor; 7. small gear; 8. tension swing rod; 9. rotating wheel; 10. first transmission wheel; 11. second transmission wheel; 12. first servo motor; 13. second servo motor; 14. third transmission wheel; 15. hysteresis tension controller; 16. wrapping shaft; 17. first middle through hole; 18. second middle through hole; 19. wrapping wire hole; 20. winding tray. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Combination Figures 1 to 7The present embodiment is described. The present embodiment provides a constant tension tape wrapping machine for cable wrapping, which includes a machine base 1 and a wrapping frame 2. The machine base 1 is provided with two concentric outer shafts 3 and an inner shaft 4. The outer shaft 3 is movably connected to the machine base 1, and the inner shaft 4 passes through the outer shaft 3 and is movably connected to the outer shaft 3. Specifically, the outer shaft 3 is movably connected to the machine base 1 through a bearing, and both ends of the inner shaft 4 are movably connected to the outer shaft 3 through bearings. The wrapping frame 2 is fixed to the upper end of the outer shaft 3. A winding tray 20 fixed to the inner shaft 4 is provided in the wrapping frame 2. A large toothed disc 5 is fixedly connected to the inner shaft 4. A tension sensor 6 is installed on the wrapping frame 2. A small gear 7 is installed on the tension sensor 6. The small gear 7 is meshed with the large toothed disc 5. A tension swing rod 8 is installed on the large toothed disc 5. The winding tray 20 is used to install a microporous tape reel and the microporous tape is wound around the tension swing rod 8.

[0025] like Figure 4-6 As shown, the wrapping frame 2 includes a chassis 21 and a top ring 22. The chassis 21 is fixedly connected to the upper end of the outer shaft 3. The chassis 21 is fixedly connected to the top ring 22 through four columns 23, wherein two side guide pulleys 24 are installed on the two columns 23, and a top guide pulley 25 is installed on the top ring 22. The top guide pulley 25 is arranged corresponding to the side guide pulleys 24 on the columns 23. Two inner brackets 26 are fixedly connected to the top ring 22, and the two inner brackets 26 are arranged toward the outer shaft 3. The inner brackets 26 are installed with a tape feed guide wheel 27. In addition, a plurality of guide pillars 28 are fixedly connected between the chassis 21 and the top ring 22, and the microporous tape passes around the guide pillars 28, and the guide pillars 28 are in pairs.

[0026] like Figure 6-7 As shown, there are two tension swing rods 8, and the upper end of the tension swing rod 8 is fixedly connected with a rotating wheel 9, the rotating wheel 9 is in contact with the inner wall of the top ring 22, the large toothed disc 5 is provided with two tooth surfaces, and there are also two matching tension sensors 6. The small gear 7 connected to the tension sensor 6 is respectively meshed with the two tooth surfaces on the large toothed disc 5. When the tension of the microporous belt fluctuates, the tension swing rod 8 is driven to displace, and then the large toothed disc 5 is driven to rotate. The large toothed disc 5 drives the small gear 7 to rotate, and then transmits it to the tension sensor 6, so as to realize online detection of constant tension.

[0027] like Figure 4 , 6As shown, the lower end of the inner shaft 4 extends out of the outer shaft 3 and the extended part is fixedly connected to the first transmission wheel 10. The outer shaft 3 is located below the base 1 and is provided with a second transmission wheel 11. The first transmission wheel 10 is connected to the first servo motor 12 through a first transmission belt, and the second transmission wheel 11 is transmission-connected to the second servo motor 13 through a second transmission belt. The first servo motor 12 and the second servo motor 13 control the rotation speed of the winding tray 20 and the rotation speed of the wrapping frame 2 through the inner shaft 4 and the outer shaft 3 respectively. When the wrapping tension changes greatly due to the change in the diameter of the microporous tape reel, the hysteresis tension controller 15 cannot be adjusted. At this time, the two servo motors adjust the tension through the speed ratio difference to achieve constant tension of the wrapping tension from a full reel to an empty reel of the microporous tape.

[0028] The outer shaft 3 is located above the machine base 1 and is rotatably connected to a third transmission wheel 14. The third transmission wheel 14 is connected to a hysteresis tension controller 15 through a third transmission belt. The hysteresis tension controller 15 and the tension sensor 6 both have a certain range and accuracy. Generally, the hysteresis tension controller 15 has 3-30g, 10-100g, 25-200g, 50-400g, 80-600g, and 100-800g. If a larger tension range is selected, fine control of the tension cannot be achieved. If a smaller tension is selected, tension control cannot be achieved. Therefore, this time, the hysteresis tension controller 15 and the servo motor are used for joint control. The hysteresis tension controller 15 selects 10-100g. When the hysteresis tension controller 15 detects a small tension fluctuation, the PLC control system first works through the hysteresis tension controller 15, which is equivalent to the sensitive action being completed by the hysteresis tension controller 15.

[0029] The upper end of the inner shaft 4 is rotatably connected to a coaxial winding shaft 16, and the inner shaft 4 is provided with a first central through hole 17 for the winding core to pass through, and the winding shaft 16 is provided with a second central through hole 18 coaxial with the first central through hole 17, and the outer wall of the winding shaft 16 is axially provided with a winding hole 19 connected to the second central through hole 18, and there are two winding holes 19, one wider and the other narrower, and the wire core to be wound passes through the first central through hole 17 of the inner shaft 4 into the second central through hole 18, and is pulled by an external traction device, and the microhole passes through the two winding holes 19 and is wound around the wire core to be wound.

[0030] The working principle of the present invention is: by meshing the large toothed disc 5 with the small gear 7, the tension swing rod 8 is connected to the tension sensor 6 in a transmission manner, so that the tension sensor 6 can detect the constant tension of the microporous belt online, and the hysteresis tension controller 15 can be used to control the slight tension change, and the tension swing rod 8 is returned to the set position. The problem of instantaneous tension fluctuation is solved by the displacement of the tension swing rod 8. By adjusting the speed difference between the inner shaft 4 and the outer shaft 3, the tension of the microporous belt is kept consistent from a full disk to an empty disk, so as to achieve real-time consistency of the wrapping tension and ensure the consistency of the outer diameter of the microporous belt around the insulating core.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant tension taping machine for cable taping, comprising a machine base and a taping frame, characterized in that: The machine base is provided with two concentric outer shafts and an inner shaft, the outer shaft is movably connected to the machine base, the inner shaft passes through the outer shaft and is movably connected to the outer shaft, the winding frame is fixed at the upper end of the outer shaft, a winding tray fixed on the inner shaft is provided in the winding frame, a large toothed disc is fixedly connected to the inner shaft, a tension sensor is installed on the winding frame, a pinion is installed on the tension sensor, the pinion is meshed with the large toothed disc, a tension swing rod is installed on the large toothed disc, and the winding tray is used to install the microporous tape disc and the microporous tape passes around the tension swing rod.

2. A constant tension taping machine for cable taping according to claim 1, characterized in that: The wrapping frame includes a chassis and a top ring. The chassis is fixedly connected to the top ring through a column. The column is equipped with a side guide pulley, the top ring is equipped with a top guide pulley, the top ring is fixedly connected to an inner bracket, and the inner bracket is equipped with a tape feeding guide pulley.

3. A constant tension taping machine for cable taping according to claim 2, characterized in that: A plurality of guide posts are also fixedly connected between the bottom plate and the top ring, and the microporous belt passes around the guide posts.

4. A constant tension taping machine for cable taping according to claim 2, characterized in that: There are two tension swing rods, and the upper ends of the tension swing rods are fixedly connected with rotating wheels, and the rotating wheels are in contact with the inner wall of the top ring.

5. A constant tension taping machine for cable taping according to claim 4, characterized in that: The toothed disc is provided with two tooth surfaces, and there are also two matching tension sensors. The pinion connected to the tension sensor is respectively meshed with the two tooth surfaces on the toothed disc.

6. A constant tension taping machine for cable taping according to claim 1, characterized in that: The lower end of the inner shaft extends out of the outer shaft and the extended part is fixedly connected to the first transmission wheel. The outer shaft is located below the base and is provided with a second transmission wheel. The first transmission wheel is connected to the first servo motor through a first transmission belt, and the second transmission wheel is transmission-connected to the second servo motor through a second transmission belt.

7. A constant tension taping machine for cable taping according to claim 6, characterized in that: The outer shaft is located above the machine base and is rotatably connected to a third transmission wheel, and the third transmission wheel is connected to the hysteresis tension controller through a third transmission belt.

8. A constant tension taping machine for cable taping according to claim 1, characterized in that: The upper end of the inner shaft is rotatably connected to a coaxial winding shaft, the inner shaft is provided with a first central through hole, and the winding shaft is provided with a second central through hole coaxial with the first central through hole, and the outer wall of the winding shaft is provided with a winding wire hole connected to the second central through hole along the axial direction.

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