A quick-threading head wrap

Abstract

This utility model relates to the field of cable production equipment technology, and in particular to a quick-threading wrapping head, comprising a main shaft, a rotating sleeve, a cradle, a reel fixing structure, a first rotating wheel, a fixing sleeve, a rotating ring, and a tension roller. The main shaft has a wire-passing hole along its axial direction. The cradle includes a mounting plate, two support arms, a connecting plate, a steering roller, and multiple guide rollers rotatably connected to the connecting plate. The mounting plate, connecting plate, and two support arms enclose a tape-laying space. The reel fixing structure is located within the tape-laying space, and the tension roller extends into the tape-laying space. This application simplifies the structure of the cradle while achieving normal wrapping of the wrapping tape, resulting in fewer components, smaller size, lighter weight, and lower production costs. It reduces the rotational inertia of the cradle, significantly reducing vibration and noise during operation. Furthermore, the tape-threading path is shortened, reducing the impact of wind resistance on the wrapping tape during high-speed operation, resulting in more stable tape tension and faster and more convenient loading and unloading of the reel and tape threading.

Description

Technical Field

[0001] This utility model relates to the field of cable production equipment technology, and in particular to a quick-threading wrapping head. Background Technology

[0002] The wrapping of the core wire with wrapping tape is one of the processes in cable production. The wrapping head is an important component of the wrapping machine or drag wrapping machine, and it is used to wrap the wrapping tape around the core wire. Among existing patents, the applicant filed a Chinese patent application on October 11, 2019 (application number 201921703981.0) disclosing a cradle untwisting machine, and another Chinese patent application on March 25, 2021 (application number 202120634441.2) disclosing a powered swing arm unwinding drag wrapping machine. The cradles and wrapping devices disclosed in these two patents have complex structures, numerous components, large size, and heavy weight, resulting in a large moment of inertia for the cradle. This leads to unstable tension of the wrapping tape, a long tape threading path, susceptibility to wind resistance, and cumbersome operation of disassembling and assembling the reel and threading the tape. Therefore, the defects are quite obvious, and a solution is urgently needed. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a quick-threading wrapping head.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A quick-threading type wrapping head includes a main shaft, a rotating sleeve rotatably sleeved outside the main shaft, a cradle mounted on one end of the rotating sleeve, a thread spool fixing structure fitted onto one end of the main shaft, a first rotating wheel rotatably sleeved on the rotating sleeve, a fixed sleeve rotatably sleeved on the rotating sleeve, a rotating ring fixedly connected to the first rotating wheel and rotatably sleeved on the rotating sleeve, and a tension roller rotatably connected to the rotating ring. The axis of the tension roller is parallel to the axis of the main shaft, and the main shaft has a thread-passing hole in its axial direction. The cradle includes a thread-passing hole mounted on the rotating sleeve and rotatably sleeved outside the main shaft. The system includes an installation plate, two support arms symmetrically mounted on the same side of the installation plate, a connecting plate connected to the two support arms, a steering roller rotatably mounted on the support arms, and multiple guide rollers rotatably connected to the connecting plate. The axes of the tension roller, the steering roller, and the guide rollers are set at an angle to each other. The first rotating wheel is located on the other side of the installation plate. The installation plate, the connecting plate, and the two support arms enclose a tape feeding space. The reel fixing structure is located within the tape feeding space. The tension roller extends into the tape feeding space and is located on one side of the reel fixing structure.

[0006] Furthermore, the end of the connecting plate is locked to the free end of the support arm via fasteners.

[0007] Furthermore, the coil fixing structure includes a bushing, a fixing plate fixedly installed at the inner end of the bushing, and a movable plate threaded onto the other end of the bushing, with the bushing fitted onto one end of the main shaft.

[0008] Furthermore, a cable outlet hole is provided in the middle of the connecting plate, and the cable outlet hole and the cable passage hole are coaxially arranged.

[0009] Furthermore, a second wheel is fitted onto the end of the main shaft furthest from the cradle.

[0010] Furthermore, the rotating sleeve is equipped with a third rotating wheel, and the fixed sleeve is located between the first rotating wheel and the third rotating wheel.

[0011] Furthermore, the side wall of the connecting plate is provided with an adjustment groove, and an adjustment rod is detachably installed in the adjustment groove. The guide roller is rotatably connected to the adjustment rod, and the adjustment rod can move along the adjustment groove to adjust the position of the adjustment rod on the connecting plate.

[0012] Furthermore, the peripheral wall of the mounting plate is recessed with a swing groove, and the tension roller is located in the swing groove.

[0013] Furthermore, both opposite sidewalls of the swing groove are equipped with abutting blocks, which are used to abut the tension roller.

[0014] Furthermore, the contact block is an elastic buffer block.

[0015] The beneficial effects of this utility model are as follows: In practical applications, this utility model is applied to a wrapping machine. The spool is installed on the spool fixing structure, the core wire passes through the wire hole and is pulled by an external traction mechanism, causing the core wire to move along the wire hole. The spool fixing structure fixes the spool. The wrapping tape on the spool is wound around the moving core wire after passing through the tension roller, the steering roller and multiple guide rollers in sequence. Specifically, the external first rotation drive mechanism drives the main shaft to rotate. The rotating main shaft drives the spool fixing structure and the spool to rotate. The rotating spool releases the wrapping tape. During this process, the external second rotation drive mechanism drives the rotating sleeve to rotate. The rotating sleeve drives the cradle to rotate. The rotating cradle wraps the wrapping tape around the moving core wire. According to the situation of the spool releasing the wrapping tape, the tension drive mechanism drives the first rotating wheel to rotate adaptively. The rotating first rotating wheel drives the rotating ring to rotate adaptively, so that the tension roller provides appropriate tension to the released wrapping tape, so that the wrapping tape maintains a constant tension. This invention simplifies the structure of the cradle while achieving normal wrapping of the wrapping tape, resulting in fewer parts, smaller size, lighter weight, and lower production costs. It also reduces the rotational inertia of the cradle, significantly reducing vibration and noise during operation. Furthermore, the tape threading path is shortened, reducing the impact of wind resistance on the wrapping tape during high-speed operation. This makes the tension of the wrapping tape more stable, and the loading and unloading of the reel and the threading of the tape are faster and more convenient. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the present invention.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. Main shaft; 2. Rotating sleeve; 3. Cradle; 4. Wire reel fixing structure; 5. First rotating wheel; 6. Fixing sleeve; 7. Rotary ring; 8. Tension roller; 9. Wire passage hole; 10. Mounting plate; 11. Support arm; 12. Connecting plate; 13. Steering roller; 14. Guide roller; 15. Locking fastener; 16. Bushing; 17. Fixing plate; 18. Movable plate; 19. Wire outlet hole; 20. Second rotating wheel; 21. Third rotating wheel; 22. Adjusting groove; 23. Adjusting rod; 24. Swing groove; 25. Abutment block. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a quick-threading wrapping head, which includes a main shaft 1, a rotating sleeve 2 rotatably sleeved outside the main shaft 1, a cradle 3 mounted on one end of the rotating sleeve 2, a thread spool fixing structure 4 fitted on one end of the main shaft 1, a first rotating wheel 5 rotatably sleeved on the rotating sleeve 2, a fixing sleeve 6 rotatably sleeved on the rotating sleeve 2, a rotating ring 7 fixedly connected to the first rotating wheel 5 and rotatably sleeved on the rotating sleeve 2, and a tension roller 8 rotatably connected to the rotating ring 7. The axis of the tension roller 8 is parallel to the axis of the main shaft 1. The main shaft 1 is provided with a thread hole 9 along its axial direction. The cradle 3 includes a thread spool mounted on the rotating sleeve 2 and rotatably sleeved outside the main shaft 1. The mounting plate 10, two support arms 11 symmetrically mounted on the same side of the mounting plate 10, a connecting plate 12 connected to the two support arms 11, a steering roller 13 rotatably mounted on the support arm 11, and multiple guide rollers 14 rotatably connected to the connecting plate 12 are arranged at an angle to each other. The first rotating wheel 5 is located on the other side of the mounting plate 10. The mounting plate 10, the connecting plate 12, and the two support arms 11 form a tape feeding space. The reel fixing structure 4 is located in the tape feeding space. The tension roller 8 extends into the tape feeding space and is located on one side of the reel fixing structure 4.

[0022] In practical applications, this invention is applied to a wrapping machine. The spool is mounted on the spool fixing structure 4. The core wire passes through the wire hole 9 and is pulled by an external traction mechanism, causing the core wire to move along the wire hole 9. The spool fixing structure 4 fixes the spool. The wrapping tape on the spool is wound around the moving core wire after passing through the tension roller 8, the guide roller 13, and multiple guide rollers 14 in sequence. Specifically, the external first rotation drive mechanism drives the main shaft 1 to rotate. The rotating main shaft 1 drives the spool fixing structure 4 and the spool to rotate. The rotating spool releases the wrapping tape. During this process, the external second rotation drive mechanism drives the rotating sleeve 2 to rotate. The rotating rotating sleeve 2 drives the cradle 3 to rotate. The rotating cradle 3 wraps the wrapping tape around the moving core wire. According to the situation of the spool releasing the wrapping tape, the tension drive mechanism drives the first rotating wheel 5 to rotate adaptively. The rotating first rotating wheel 5 drives the rotating ring 7 to rotate adaptively, so that the tension roller 8 provides appropriate tension to the released wrapping tape, so that the wrapping tape maintains a constant tension. This invention simplifies the structure of the cradle 3 while achieving normal wrapping of the wrapping tape. This results in fewer parts, easier assembly and disassembly, smaller size, lighter weight, and lower production costs for the cradle 3. It also reduces the rotational inertia of the cradle 3, which significantly reduces the vibration and noise of the wrapping machine during operation. Furthermore, the tape threading path is shortened, reducing the impact of wind resistance on the wrapping tape during high-speed operation. This makes the tension of the wrapping tape more stable, and the loading and unloading of the reel and the threading of the tape are faster and more convenient.

[0023] In this embodiment, the end of the connecting plate 12 is locked to the free end of the support arm 11 via a locking fastener 15; specifically, the locking fastener 15 can be a locking bolt. This structural design facilitates the assembly and disassembly of the connecting plate 12 and the support arm 11, and the assembly of the connecting plate 12 and the support arm 11 is secure.

[0024] In this embodiment, the coil fixing structure 4 rotates synchronously with the main shaft 1. The coil fixing structure 4 includes a bushing 16, a fixing plate 17 fixedly mounted on the inner end of the bushing 16, and a movable plate 18 threadedly fitted onto the other end of the bushing 16. The bushing 16 is fitted onto one end of the main shaft 1. In practical applications, the movable plate 18 is first removed from the bushing 16, and then the coil is fitted onto the bushing 16 with one side of the coil abutting against the fixing plate 17. Then, the movable plate 18 is threaded onto the bushing 16 until the movable plate 18 abuts against the other side of the coil, so that the fixing plate 17 and the movable plate 18 clamp the coil, allowing the coil to rotate synchronously with the coil fixing structure 4.

[0025] In this embodiment, a wire outlet hole 19 is provided in the middle of the connecting plate 12, and the wire outlet hole 19 is coaxially arranged with the wire through hole 9. In practical applications, the core wire passes through the wire through hole 9 and the wire outlet hole 19 in sequence, and the rotating wrapping tape wraps around the moving core wire.

[0026] In this embodiment, a second rotating wheel 20 is fitted onto the end of the main shaft 1 furthest from the cradle 3. In practical applications, an external first rotation drive mechanism drives the second rotating wheel 20 to rotate, and the rotating first rotating wheel 5 drives the main shaft 1 to rotate synchronously.

[0027] In this embodiment, the rotating sleeve 2 is fitted with a third rotating wheel 21, and the fixed sleeve 6 is located between the first rotating wheel 5 and the third rotating wheel 21. In practical applications, an external second rotation drive mechanism drives the third rotating wheel 21 to rotate, and the rotating third rotating wheel 21 drives the rotating sleeve 2 to rotate synchronously.

[0028] In this embodiment, an adjustment groove 22 is provided on the side wall of the connecting plate 12. An adjustment rod 23 is detachably installed in the adjustment groove 22. The guide roller 14 is rotatably connected to the adjustment rod 23. The adjustment rod 23 can move along the adjustment groove 22 to adjust its position on the connecting plate 12. The adjustment groove 22 allows adjustment of the position of the adjustment rod 23 on the connecting plate 12, thereby adjusting the position of the guide roller 14 on the connecting plate 12, and further adjusting the distance between the guide roller 14 and the core wire, so as to adjust the wrapping angle of the wrapping tape wrapped around the core wire.

[0029] In this embodiment, the peripheral sidewall of the mounting plate 10 is recessed with a swing groove 24, and the tension roller 8 is located in the swing groove 24. The swing groove 24 provides space for the tension roller 8 to extend into the tape feeding space, making the structure of the tension roller 8 and the mounting plate 10 compact, which is beneficial for the tension roller 8 to make adaptive swings to apply appropriate tension to the wrapping tape.

[0030] In this embodiment, both opposite sidewalls of the swing groove 24 are equipped with abutting blocks 25, which are used to abut the tension roller 8. During the process of the tension roller 8 making adaptive reciprocating swings in the swing groove 24, as the cradle 3 rotates, the abutting blocks 25 can abut the tension roller 8, so that the cradle 3 can abut the rotating ring 7 to rotate adaptively.

[0031] In this embodiment, the contact block 25 is an elastic buffer block. This structural design prevents the contact block 25 from having a hard impact collision with the tension roller 8, thereby reducing noise.

[0032] All technical features in this embodiment can be freely combined according to actual needs.

[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A quick-threading type wrapping head, characterized in that: The device includes a main shaft (1), a rotating sleeve (2) rotatably sleeved outside the main shaft (1), a cradle (3) mounted on one end of the rotating sleeve (2), a wire reel fixing structure (4) mounted on one end of the main shaft (1), a first rotating wheel (5) rotatably sleeved on the rotating sleeve (2), a fixing sleeve (6) rotatably sleeved on the rotating sleeve (2), a rotating ring (7) fixedly connected to the first rotating wheel (5) and rotatably sleeved on the rotating sleeve (2), and a tension roller (8) rotatably connected to the rotating ring (7). The axis of the tension roller (8) is parallel to the axis of the main shaft (1), and the main shaft (1) has a wire hole (9) in its axial direction. The cradle (3) includes a mounting plate (10) mounted on the rotating sleeve (2) and rotatably sleeved outside the main shaft (1). Two support arms (11) are symmetrically mounted on the same side of the mounting plate (10), a connecting plate (12) is connected to the two support arms (11), a steering roller (13) is rotatably mounted on the support arm (11), and multiple guide rollers (14) are rotatably connected to the connecting plate (12). The axis of the tension roller (8), the axis of the steering roller (13), and the axis of the guide roller (14) are set at an angle to each other. The first rotating wheel (5) is located on the other side of the mounting plate (10). The mounting plate (10), the connecting plate (12), and the two support arms (11) form a tape feeding space. The reel fixing structure (4) is located in the tape feeding space. The tension roller (8) extends into the tape feeding space and is located on one side of the reel fixing structure (4).

2. The quick-threading type wrapping head according to claim 1, characterized in that: The end of the connecting plate (12) is locked to the free end of the support arm (11) via a fastener (15).

3. The quick-threading wrapping head according to claim 1, characterized in that: The coil fixing structure (4) includes a bushing (16), a fixing plate (17) fixedly installed on the inner end of the bushing (16), and a movable plate (18) threaded onto the other end of the bushing (16). The bushing (16) is fitted onto one end of the main shaft (1).

4. The quick-threading wrapping head according to claim 1, characterized in that: A wire outlet hole (19) is provided in the middle of the connecting plate (12), and the wire outlet hole (19) and the wire passage hole (9) are coaxially arranged.

5. The quick-threading type wrapping head according to claim 1, characterized in that: A second wheel (20) is fitted onto the end of the main shaft (1) away from the cradle (3).

6. The quick-threading type wrapping head according to claim 1, characterized in that: The rotating sleeve (2) is fitted with a third rotating wheel (21), and the fixed sleeve (6) is located between the first rotating wheel (5) and the third rotating wheel (21).

7. The quick-threading type wrapping head according to claim 1, characterized in that: The side wall of the connecting plate (12) is provided with an adjustment groove (22), and an adjustment rod (23) is detachably installed in the adjustment groove (22). The guide roller (14) is rotatably connected to the adjustment rod (23), and the adjustment rod (23) can move along the adjustment groove (22) to adjust the position of the adjustment rod (23) on the connecting plate (12).

8. The quick-threading type wrapping head according to claim 1, characterized in that: The mounting plate (10) has a sway groove (24) recessed on its peripheral sidewall, and the tension roller (8) is located in the sway groove (24).

9. A quick-threading type wrapping head according to claim 8, characterized in that: The two opposite sidewalls of the swing groove (24) are equipped with abutting blocks (25), which are used to abut the tension roller (8).

10. A quick-threading type wrapping head according to claim 9, characterized in that: The contact block (25) is an elastic buffer block.

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