Tension-adjustable take-up device for wrapping machine

Abstract

The utility model discloses a tension-adjustable take-up device for a wrapping machine, which belongs to the technical field of wrapping machines and comprises a base, a take-up mechanism and a winding displacement mechanism, the take-up mechanism and the winding displacement mechanism are mounted on the base, the tension-adjustable take-up device further comprises a tension adjusting mechanism, the tension adjusting mechanism comprises a tension frame, a guide wheel, a movable frame and a tension wheel, and the lower end of the tension frame is fixedly connected with the base. The guide wheel is rotatably connected with the tension frame, the movable frame is rotatably connected with the tension frame, the tension wheel is located below the guide wheel and rotatably connected with one end of the movable frame, a telescopic structure is arranged between the base and the movable frame, one end of the telescopic structure is hinged to the base, and the other end of the telescopic structure is hinged to the movable frame. According to the tension-adjustable take-up device for the wrapping machine, the position of the tension wheel can be changed by controlling the length of the telescopic structure, so that the tension of a core wire is adjusted, and the take-up quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wrapping machines, in particular to a tension-adjustable wire take-up device for wrapping machines. Background Art

[0002] A wrapping machine is a cable production equipment that wraps a wrapping tape (such as mica tape, tissue paper tape, polyester film, etc.) around a core wire by rotating a turntable. It generally includes a pay-out device and a take-up device. When in use, the pay-out reel carrying the wire is installed on the pay-out device, and the take-up reel for taking up the wire is installed on the take-up device. The core wire released from the pay-out reel is wound and recycled by the take-up reel after wrapping.

[0003] Chinese patent publication number CN220787664U discloses an easily adjustable cable arrangement for wire take-up equipment. Installed on a wire take-up machine, the cable arrangement includes a mounting base. During operation, the mounting base reciprocates along the axial direction of the take-up reel, thereby winding the cable onto the reel in an orderly manner. After long-term use, the applicant discovered that because the size of the take-up reel increases with the progress of the take-up process, the take-up speed and the core wire tension increase. The lack of a tension adjustment device on the take-up machine results in significant variations in the tightness of the core wire at various locations on the take-up reel, thus affecting the quality of the take-up.

[0004] Based on this, it is necessary to add a tension adjustment device to the take-up device of the wrapping machine to reduce the tightness difference of the core wire at various locations on the take-up reel and improve the take-up quality. Utility Model Content

[0005] The technical problem to be solved by the present invention is that in the prior art, the wire taking-up device of the wrapping machine lacks a tension adjusting device, resulting in large differences in the tightness of the core wires at various locations on the take-up reel and poor take-up quality. Based on this, the present invention provides a wire taking-up device for a wrapping machine with adjustable core wire tension and high take-up quality.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a tension-adjustable wire taking-up device for a wrapping machine, comprising a base and a wire taking-up mechanism and a wire arrangement mechanism installed on the base, and also comprising a tension adjustment mechanism, the tension adjustment mechanism comprising a tension frame, a guide wheel, a movable frame and a tension wheel, the lower end of the tension frame is fixedly connected to the base, the guide wheel is rotatably connected to the tension frame, the movable frame is rotatably connected to the tension frame, the tension wheel is located below the guide wheel and is rotatably connected to one end of the movable frame, a telescopic structure is provided between the base and the movable frame, one end of the telescopic structure is hinged to the base, and the other end of the telescopic structure is hinged to the movable frame.

[0007] Furthermore, a bearing seat is fixedly mounted on the tension frame, a rotating shaft is rotatably passed through the bearing seat, one end of the rotating shaft is fixedly connected to the movable frame, and a bearing is provided between the bearing seat and the rotating shaft.

[0008] Furthermore, there are two bearings, which are respectively located on two opposite sides of the bearing seat.

[0009] Furthermore, a shoulder is provided on the end of the rotating shaft close to the movable frame, and the side of one of the bearings abuts against the shoulder. A slot is provided on the outer wall of the rotating shaft away from the end of the movable frame, and a retaining spring is installed in the slot, and the retaining spring abuts against the side of the other bearing.

[0010] Furthermore, a guide groove is provided on the outer circumference of the guide wheel, and a tension groove is provided on the outer circumference of the tension wheel. The number of the guide grooves is N, N≥2 and is an integer, and the number of the tension grooves is N-1.

[0011] Furthermore, the number of the guide grooves N=3.

[0012] Furthermore, a line-out wheel shaft is fixedly mounted on the tension frame, the guide wheel is rotatably mounted on the line-out wheel shaft, an L-shaped line-passing bracket is fixedly connected to the line-out wheel shaft, two guide rollers are rotatably mounted on the line-passing bracket, and the gap between the two guide grooves corresponds to the guide groove on the guide wheel for line outlet.

[0013] Furthermore, the telescopic structure is a telescopic cylinder, the cylinder end of the telescopic cylinder is hinged to the base, and the protruding end of the telescopic cylinder is hinged to the movable frame.

[0014] Furthermore, the wire-taking mechanism includes a swing arm rotatable relative to the base and a driving assembly for driving the swing arm to rotate. The first top column and the second top column are respectively installed at the opposite ends of the swing arm, and the wire-taking reel is clamped between the first top column and the second top column.

[0015] Furthermore, the cable traversing mechanism includes a cable traversing seat and two guide pillars rotatably mounted vertically on the cable traversing seat. A guide rail is fixedly mounted on the top of the swing arm. The length direction of the guide rail is arranged along the axial direction of the cable take-up reel. The cable traversing seat is slidably connected to the guide pillars.

[0016] The beneficial effects of the utility model are as follows: the tension-adjustable wire-taking device for the wrapping machine of the utility model is provided with a tension-adjusting mechanism on the base, and the position of the tension wheel can be adjusted by controlling the telescopic structure and changing the length of the telescopic structure, thereby adjusting the tension of the core wire, ensuring that the tightness of the core wire at various locations on the wire-taking reel will not vary greatly, thereby improving the wire-taking quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional diagram of the tension-adjustable take-up device for a wrapping machine of the utility model;

[0019] Figure 2 yes Figure 1 A three-dimensional view of the tension-adjustable wire take-up device for the wrapping machine shown in another perspective;

[0020] Figure 3 yes Figure 1 The left side view of the tension-adjustable take-up device for the wrapping machine shown;

[0021] Figure 4 yes Figure 1 A top view of a tension-adjustable take-up device for a wrapping machine shown;

[0022] Figure 5 yes Figure 4 A cross-sectional view of the tension-adjustable take-up device for a wrapping machine along line AA is shown;

[0023] Figure 6 yes Figure 1 The right side view of the tension-adjustable take-up device for the wrapping machine shown;

[0024] Figure 7 yes Figure 1 A three-dimensional diagram of a tension adjustment mechanism in a tension-adjustable take-up device for a wrapping machine;

[0025] Figure 8 yes Figure 7 A perspective view of the tension adjustment mechanism from another perspective;

[0026] Figure 9 yes Figure 7 A top view of the tension adjustment mechanism shown;

[0027] Figure 10 yes Figure 9 A cross-sectional view of the tension adjustment mechanism along line BB;

[0028] Figure 11 yes Figure 10 A partial enlarged view of point C in the tension adjustment mechanism shown.

[0029] In the figure: 1, base, 11, support, 12, fixed shaft, 13, connecting frame, 131, fixed pin, 20, take-up mechanism, 21, swing arm, 211, connecting plate, 212, guide rail, 22, drive assembly, 221, stud, 222, stud motor, 223, drive block, 2231, rotating shaft, 224, second reducer, 23, first top column, 231, fixed plate, 232, limiting column, 233, first top cone, 24, second top column, 241, second top cone, 242, fixing sleeve, 24 3. End cover, 244. Screw, 245. Handwheel, 25. Drive motor, 26. First reducer, 30. Wire arrangement mechanism, 31. Wire arrangement seat, 32. Guide column, 40. Tension adjustment mechanism, 41. Tension frame, 411. Outgoing wheel shaft, 412. Wire passing bracket, 413. Guide roller, 42. Guide wheel, 43. Movable frame, 44. Tension wheel, 441. Tension slot, 45. Telescopic structure, 46. Bearing seat, 47. Rotating shaft, 471. Shaft shoulder, 472. Slot, 473. Retaining spring, 48. Bearing. DETAILED DESCRIPTION

[0030] The present invention will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, which only illustrates the basic structure of the present invention in a schematic manner, and therefore only shows the components related to the present invention.

[0031] See also Figures 1-6 The utility model provides a tension-adjustable wire-taking device for a wrapping machine, comprising a base 10 and a wire-taking mechanism 20, a wire-arranging mechanism 30 and a tension-adjusting mechanism 40, all of which are mounted on the base 10. The wire-taking reel is mounted on the wire-taking mechanism 20, and the wire-arranging mechanism 30 is arranged on the wire-taking mechanism 20, and is used to guide the core wire to be wound on the wire-taking reel in an orderly manner during reciprocating motion. The tension-adjusting mechanism 40 is used to adjust the tension of the core wire so that the tightness of the core wire wound on the wire-taking reel tends to be consistent.

[0032] The wire take-up mechanism 20 includes a swing arm 21 that is rotatable relative to the base 10 and a drive assembly 22 for driving the swing arm 21 to rotate. During operation, a take-up reel for taking up the wire is mounted on the swing arm 21. The drive assembly 22 drives the swing arm 21 to rotate, thereby lowering or raising the take-up reel for easy removal and normal operation. Specifically, the swing arm 21 is generally U-shaped. A first top post 23 is rotatably mounted on one end of the swing arm 21, and a second top post 24 is slidably mounted on the other end of the swing arm 21. The second top post 24 is coaxially arranged with the first top post 23. A first top cone 233 is fixedly mounted on the end of the first top post 23, and a second top cone 241 is rotatably mounted on one end of the second top post 24. During use, the take-up reel is placed between the first and second top posts 23, 24. By sliding the second top post 24, the take-up reel is clamped between the first and second top cones 233, 241, thereby achieving clamping of the take-up reel.

[0033] In this embodiment, a fixed disk 231 is fixedly mounted on the first top column 23, and a limiting post 232 is fixedly connected to the fixed disk 231. When the first top cone is pushed against one side of the center hole of the take-up reel, the limiting post 232 is inserted into a through hole (not shown) on one side of the take-up reel, so that the take-up reel is fixed relative to the first top column 23 and rotates under the drive of the first top column 23. In order to realize the rotation of the first top column 23, a drive motor 25 and a first reducer 26 are installed on the swing arm 21. The power input end of the first reducer 26 is connected to the output shaft of the drive motor 25, and the power output end of the first reducer 26 is connected to the first top column 23. In this way, the drive motor 25 drives the first top column 23 and the take-up reel to rotate through the first reducer 26.

[0034] To enable the second top column 24 to move along its own axis, a fixing sleeve 242 is fixedly mounted on the swing arm 21. An end cap 243 is fixedly mounted on one end of the fixing sleeve 242. A screw 244 is rotatably mounted on the end cap 243. The second top column 24 is slidably mounted within the fixing sleeve 242 and is threadedly connected to the screw 244. A handwheel 245 is fixedly mounted on one end of the screw 244. The cross-section of the second top column 24 is a rectangular structure, which means that the second top column 24 can only move along the axis of the fixing sleeve 242 and cannot rotate relative to the fixing sleeve 242. During use, the user rotates the handwheel 245, which drives the screw 244 to rotate, thereby driving the second top column 24 and the second top cone 242 to slide, thereby clamping or releasing the take-up reel.

[0035] In this embodiment, a support 11 is fixedly mounted on the base 10 , a fixed shaft 12 is fixedly mounted on the support 11 , and the bottom of the swing arm 21 is rotatably connected to the fixed shaft 12 , thereby achieving a rotatable connection relationship between the base 10 and the swing arm 21 .

[0036] As a preferred embodiment, the drive assembly 22 includes a stud 221 rotatable relative to the base 10, a stud motor 222 for driving the stud 221, and a drive block 223 threadedly connected to the stud 221. The drive block 223 is rotatably connected to the swing arm 21. During use, the stud motor 221 is activated, driving the stud 221 to rotate, thereby driving the drive block 223 to move axially along the stud 221, thereby forcing the swing arm 21 to deflect and swing. Simultaneously, the stud 221 rotates relative to the base 10.

[0037] Specifically, the drive assembly 22 also includes a second reducer 224. A connecting frame 13 is fixedly mounted on the base 10. A fixing pin 131 is fixedly mounted on the connecting frame 13. The bottom of the second reducer 224 is rotatably mounted on the fixing pin 131. The power input end of the second reducer 224 is connected to the output shaft of the stud motor 222, and the power output end of the second reducer 224 is connected to the stud 221. In this way, the stud motor 222 can drive the stud 221 to rotate through the second reducer 224. At the same time, the stud 221 can also be rotated relative to the base 10. During operation, the stud 221 and the driving block 223 are threadedly connected. When the driving block 223 is moved into position, the driving block 223 has a certain self-locking function, which can effectively prevent the driving block 223 from easily moving along the axial direction of the stud 221, thereby ensuring the stability of the swing arm 21 after position adjustment and making it more reliable to use.

[0038] As a preferred embodiment, two oppositely arranged connecting plates 211 are fixedly connected to the middle part of the swing arm 21, and the driving block 223 is a rectangular block structure. The driving block 223 has a rotating shaft 2231 protruding on both opposite sides, and the rotating shaft 2231 is rotatably connected to the connecting plate 211.

[0039] In other embodiments not shown, the driving component 22 for driving the swing arm 21 to rotate can also be a cylinder. In this case, the cylinder body end of the cylinder is rotatably connected to the base 10, and the protruding end of the cylinder is rotatably connected to the swing arm 21. In this way, when the cylinder is started, the swing arm 21 can also be driven to rotate.

[0040] The wire arrangement mechanism 30 includes a wire arrangement seat 31 and two guide posts 32 rotatably mounted vertically on the wire arrangement seat 31. A guide rail 212 is fixedly mounted on the top of the swing arm 21. The length of the guide rail 212 is arranged along the axial direction of the wire take-up reel. The wire arrangement seat 31 and the guide posts 212 are slidably connected. During use, the core wire passes through the gap between the two guide posts 32. During the reciprocating motion of the wire arrangement seat 31 along the guide rail 212, the core wire is guided to be wound around the wire take-up reel in an orderly manner. The method of driving the wire arrangement seat 31 along the guide rail 212 can be a screw drive method or a chain drive method in the prior art, which is not limited here.

[0041] See also Figure 7-11The tension adjustment mechanism 40 includes a tension frame 41, a guide wheel 42, a movable frame 43, and a tension wheel 44. The tension frame 41 has an inverted Z-shaped structure. The lower end of the tension frame 41 is fixedly connected to the base 10, the guide wheel 42 is rotatably connected to the tension frame 41, and the movable frame 43 is rotatably connected to the tension frame 41. The tension wheel 44 is located below the guide wheel 42 and is rotatably connected to one end of the movable frame 43. A telescopic structure 45 is provided between the base 10 and the movable frame 43. One end of the telescopic structure 45 is hinged to the base 10, and the other end of the telescopic structure 45 is hinged to the movable frame 43. During use, the core wire passes around the guide wheel 42 and tension wheel 44, passes through the gap between the two guide posts 32, and is finally wound onto the take-up reel. By controlling the telescopic structure 45 and changing its length, the user can adjust the position of the tension wheel 44, thereby adjusting the tension of the core wire. This ensures that the tightness of the core wire at different locations on the take-up reel does not vary significantly, thereby improving the take-up quality. During specific use, the position of the tension wheel 44 can be adjusted once every specific period of time to reduce the tension difference of the core wire.

[0042] In this embodiment, the telescopic structure 45 is a telescopic cylinder, the cylinder end of which is hingedly connected to the base 10, and the extended end of which is hingedly connected to the movable frame 43. In other embodiments, the telescopic structure 45 may further include an inner tube and an outer tube that is movably mounted outside the inner tube, the inner tube and the outer tube being hingedly connected to the base 10 and the movable frame 43, respectively. After the positions of the inner tube and the outer tube are adjusted, a locking bolt can be installed on the side wall of the outer tube. Tightening the locking bolt squeezes the inner tube against the outer tube, thereby securing the inner and outer tubes.

[0043] As a preferred embodiment, a bearing seat 46 is fixedly mounted on the tension frame 41. A rotating shaft 47 is rotatably inserted into the bearing seat 46. One end of the rotating shaft 47 is fixedly connected to the movable frame 43. The movable frame 43 is rotatably connected to the tension frame 41 via the rotating shaft 47. A bearing 48 is provided between the bearing seat 46 and the rotating shaft 47 to support the rotating shaft 47 and ensure smooth rotation of the rotating shaft 47. In addition, two bearings 48 are provided, one on each opposite side of the bearing seat 46, to improve the rotational stability of the rotating shaft 47.

[0044] Furthermore, a shoulder 471 is provided on the end of the rotating shaft 47 near the movable frame 43. The side of one of the bearings 48 abuts against the shoulder 471, thereby facilitating the installation of the rotating shaft 47. A retaining groove 472 is provided on the outer wall of the rotating shaft 47 at the end away from the movable frame 43. A retaining spring 473 is installed in the retaining groove 472. The retaining spring 473 abuts against the side of the other bearing 48, thereby limiting the axial movement of the rotating shaft 47.

[0045] In a preferred embodiment, the guide pulley 42 is provided with a guide groove 421 on its outer circumference, and the tension pulley 44 is provided with a tension groove 441 on its outer circumference. The number of guide grooves 421 is N, where N is an integer ≥ 2, and the number of tension grooves 441 is N-1. During use, the core wire enters the tension adjustment mechanism 40 through the guide groove 421 on one side of the guide pulley 42 (this guide groove 421 is used for wire entry), then passes downward around the tension groove 441 on one side of the tension pulley 44, then passes upward around an adjacent guide groove 421 on the guide pulley 42, then passes downward around an adjacent tension groove 441 on the tension pulley 44, and then passes upward around the guide pulley 42. This winding process is repeated until the core wire finally exits the guide groove 421 on the guide pulley 42 (this guide groove 421 is used for wire exit) and enters the gap between the two guide posts 32. It should be noted that the guide groove 421 for wire entry and the guide groove 421 for wire exit are located on opposite sides of the guide pulley 42. By repeatedly winding up and down multiple times, the connection stability between the core wire and the guide wheel 42 and the tension wheel 44 is improved, preventing the core wire from easily detaching from the guide wheel 42 and the tension wheel 44.

[0046] In this embodiment, the number N of the guide slots 421 is 3.

[0047] As a preferred embodiment, a wire outlet wheel shaft 411 is fixedly mounted on the tension frame 41, and the guide wheel 42 is rotatably mounted on the wire outlet wheel shaft 411. An L-shaped wire passing bracket 412 is fixedly connected to the wire outlet wheel shaft 411, and two guide rollers 413 are rotatably mounted on the wire passing bracket 412. The gap between the two guide rollers 413 corresponds to the guide groove 421 for wire outlet on the guide wheel 42. In this way, when the core wire wound on the guide wheel 42 passes through the guide groove 421, it can first enter the gap between the two guide rollers 413 and then further enter the wire arrangement mechanism 30, ensuring that the core wire will not be separated from the guide wheel 42 due to angle changes when being pulled by the wire arrangement mechanism 30, making it more reliable to use.

[0048] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the scope of the present invention. The technical scope of this utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A tension-adjustable wire take-up device for a wrapping machine, comprising a base and a wire take-up mechanism and a wire arrangement mechanism mounted on the base, characterized in that: It also includes a tension adjustment mechanism, which includes a tension frame, a guide wheel, a movable frame and a tension wheel. The lower end of the tension frame is fixedly connected to the base, the guide wheel is rotatably connected to the tension frame, and the movable frame is rotatably connected to the tension frame. The tension wheel is located below the guide wheel and is rotatably connected to one end of the movable frame. A telescopic structure is provided between the base and the movable frame, one end of the telescopic structure is hinged to the base, and the other end of the telescopic structure is hinged to the movable frame.

2. The tension-adjustable wire take-up device for a wrapping machine according to claim 1, characterized in that: A bearing seat is fixedly mounted on the tension frame, a rotating shaft is rotatably passed through the bearing seat, one end of the rotating shaft is fixedly connected to the movable frame, and a bearing is provided between the bearing seat and the rotating shaft.

3. The tension-adjustable wire take-up device for a wrapping machine according to claim 2, characterized in that: There are two bearings, which are respectively located on two opposite sides of the bearing seat.

4. The tension-adjustable wire take-up device for a wrapping machine according to claim 3, characterized in that: A shoulder is provided on the end of the rotating shaft close to the movable frame, and the side of one of the bearings abuts against the shoulder. A groove is provided on the outer wall of the rotating shaft away from the end of the movable frame, and a retaining spring is installed in the groove, and the retaining spring abuts against the side of the other bearing.

5. The tension-adjustable wire take-up device for a wrapping machine according to claim 1, characterized in that: A guide groove is provided on the outer circumference of the guide wheel, and a tension groove is provided on the outer circumference of the tension wheel. The number of the guide grooves is N, N≥2 and is an integer, and the number of the tension grooves is N-1.

6. The tension-adjustable wire take-up device for a wrapping machine according to claim 5, characterized in that: The number of the guide grooves N=3.

7. The tension-adjustable wire take-up device for a wrapping machine according to claim 5, characterized in that: The tension frame is fixedly mounted with a line-out wheel shaft, the guide wheel is rotatably mounted on the line-out wheel shaft, an L-shaped line-passing bracket is fixedly connected to the line-out wheel shaft, the line-passing bracket is rotatably mounted with two guide rollers, and the gap between the two guide grooves corresponds to the guide groove on the guide wheel for line outlet.

8. The tension-adjustable wire take-up device for a wrapping machine according to claim 1, characterized in that: The telescopic structure is a telescopic cylinder, a cylinder end of the telescopic cylinder is hinged to the base, and a protruding end of the telescopic cylinder is hinged to the movable frame.

9. The tension-adjustable wire take-up device for a wrapping machine according to claim 1, characterized in that: The wire-taking mechanism includes a swing arm rotatable relative to the base and a driving assembly for driving the swing arm to rotate. A first top column and a second top column are respectively installed at opposite ends of the swing arm, and the wire-taking reel is clamped between the first top column and the second top column.

10. The tension-adjustable wire take-up device for a wrapping machine according to claim 9, characterized in that: The cable arrangement mechanism includes a cable arrangement seat and two guide pillars rotatably mounted vertically on the cable arrangement seat. A guide rail is fixedly mounted on the top of the swing arm. The length direction of the guide rail is arranged along the axial direction of the cable take-up reel. The cable arrangement seat is slidably connected to the guide pillars.

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