CN224036149U - Wrapping mechanism - Google Patents

Abstract

This utility model discloses a wrapping mechanism, including a first shaft, a second shaft, and a first rotating disk. The first shaft has a first channel along its axial direction, and a wire core passes through the first channel. The second shaft is coaxial with the first shaft, and its two ends extend outwards from the first shaft. The second shaft is sleeved on the first shaft and can rotate along its own axis. The second shaft has a second channel parallel to the first channel, through which the wrapping tape passes. The ends of the first rotating disk and the second shaft are fixedly connected. The first rotating disk is equipped with a first guide roller assembly and a tensioning assembly. The wrapping tape passing through the second channel is fixed to the wire core passing through the first channel by the tensioning assembly and the guide roller assembly. The tensioning assembly is used to adjust the moving speed of the wrapping tape. The wrapping mechanism has a compact structure and the wrapping tape is wound more evenly.

Description

Wrapping mechanism

Technical Field

The utility model relates to the field of cable processing equipment, in particular to a wrapping mechanism.

Background

The cable is usually composed of one or several wires twisted, and when a plurality of wires are twisted to form the cable, each wire is insulated from each other and is often twisted around the same axis, each cable is covered with a highly insulating coating layer, and the wrapping machine is a mechanism for wrapping a tape, such as a mica tape, a cotton paper tape, an aluminum foil, a polyester film, etc., around the core wire by rotating the turntable. The process is closely related to the electric performance, the stability of the tension control of the wrapping process needs to be strictly controlled, if the surface of the wrapping tape is loose after being wrapped, the wrapping effect of the outer wrapping sleeve is poor, and if the wrapping tape is wrapped tightly, the wrapping tape can be broken. There is therefore a need for a wrapping mechanism that allows for tension adjustment during wrapping.

Disclosure of utility model

In order to overcome the defects, the utility model aims to provide a wrapping mechanism which is compact in structure and more uniform in wrapping belt winding.

In order to achieve the purpose, the technical scheme adopted by the utility model is that the wrapping mechanism comprises:

the first shaft is provided with a first channel along the axial direction of the first shaft, and a wire core is arranged in the first channel in a penetrating manner;

The second shaft is coaxial with the first shaft, two ends of the first shaft extend out of the second shaft, the second shaft is sleeved outside the first shaft and can rotate along the axis of the second shaft, a second channel parallel to the first channel is formed in the second shaft, and the second channel is used for the wrapping belt to pass through;

The first rotating disc is fixedly connected with the end part of the second shaft, a first guide roller assembly and a tensioning assembly are arranged on the first rotating disc, the wrapping tape penetrating out of the second channel is fixed on the wire core penetrating through the first channel through the tensioning assembly and the wire guide roller assembly, and the tensioning assembly is used for adjusting the moving speed of the wrapping tape.

The utility model has the beneficial effects that:

The first shaft and the second shaft which are coaxial and sleeved are mutually rotated, so that the wrapping tape can be wound on the wire core, and meanwhile, the length of the wrapping mechanism in the axial direction is reduced, the structure is more compact, and the occupied area is small.

The tensioning assembly is arranged, the tensioning assembly can synchronously rotate with the first rotating disc, the moving speed of the wrapping belt can be regulated, and the wrapping belt coming out of the second channel can be regulated through the tensioning assembly, so that the wrapping belt between the tensioning assembly and the wire core is always in a tensioning state.

Further, the tensioning assembly comprises a driving wheel, a pressing wheel and a tensioning driving part, the driving wheel is rotationally connected with the first rotating disc and can rotate along the axis of the driving wheel under the driving of the tensioning driving part, the pressing wheel is located on one side of the driving wheel and parallel to the driving wheel, and the pressing wheel is used for pressing the bag strap passing through the driving wheel and the pressing wheel towards the driving wheel.

The driving wheel can drive the belting to move through the friction force between the driving wheel and the belting so as to enable the belting to move at a constant speed. Meanwhile, as the compression wheel can move, the wrapping belt can pass through conveniently on one hand, and on the other hand, when the rotating speed of the driving wheel cannot meet the winding demand, the wrapping belt can push the compression wheel to swing towards one side far away from the driving wheel, so that the wrapping belt between the tensioning assembly and the wire core is tensioned all the time.

Further, the tensioning assembly comprises an extrusion part, the extrusion part comprises a swinging frame and an elastic piece, the swinging frame is pivoted with the first rotating disc through a hinge shaft, the pressing wheel is rotationally connected with the swinging frame and swings synchronously with the swinging frame, and the elastic piece drives the swinging frame to swing towards the driving wheel by utilizing self elasticity. The elastic piece is used for driving the swinging frame to swing towards the driving wheel, and then the compression wheel is compressed on the driving wheel.

Still further, the elastic component is the extension spring, extension spring one end with dead lever on the first rolling disc supports and leans on, the other end with the swing frame is kept away from the one end of articulated shaft supports and leans on.

Further, the tensioning driving part comprises a tensioning driving part, a driving gear and a driven gear, the driving gear is sleeved outside the second shaft and is coaxially arranged with the second shaft, the driving gear is driven by the tensioning driving part to rotate, and the driven gear is fixed with the driving wheel and is meshed with the driving gear. The tensioning driving part realizes that the driving wheel can rotate along the axis of the driving wheel when synchronously rotating with the first rotating disc through a gear structure.

Further, the first rotating disc is further provided with a counterweight assembly, the counterweight assembly comprises a counterweight part I and a counterweight part II corresponding to the tensioning assembly and the first guide roller assembly, and the counterweight part I and the counterweight part II are respectively equal in weight and symmetrical in center with the tensioning assembly and the first guide roller assembly.

Through increasing configuration subassembly, let the focus of first rolling disc on self axis to this improves first rolling disc pivoted stability, and the winding of band is more even this moment.

Further, the first shaft extends out of the end part of the first rotating disc and is provided with a wire dividing block, and a plurality of wire outlet holes which are arranged side by side and communicated with the first channel are formed in the wire dividing block. And (3) arranging the wire cores before wrapping through the wire dividing blocks.

Further, the wrapping mechanism further comprises a second rotating disc fixed with the other end of the second shaft, a second guide roller assembly is arranged on the second rotating disc, and the wrapping belt is guided into the second channel through the second guide roller assembly. The second guide roller assembly is used for guiding the external wrapping tape into the second channel.

Further, the second rotating disc and the first rotating disc are respectively provided with a yielding hole communicated with the second channel, the wrapping tape enters the second channel from the yielding hole on the second rotating disc, and the wrapping tape in the second channel penetrates out from the yielding hole on the first rotating disc and is wound on the wire core.

The second rotating disc is provided with a limiting assembly at a position close to the abdication hole, the limiting assembly forms a limiting channel for the belting to pass through, the limiting channel can adjust the position of the belting, and the belting is aligned to the abdication hole of the second rotating disc.

Furthermore, the wrapping mechanism further comprises a fixing frame, the second shaft penetrates through the fixing frame and is rotationally connected with the fixing frame, and a wrapping driving piece for driving the second shaft to rotate is fixed on the fixing frame.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present utility model;

FIG. 2 is a schematic view of another perspective view of an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of an embodiment of the present utility model;

FIG. 4 is a side view of an embodiment of the present utility model;

Fig. 5 is an enlarged view at a in fig. 1.

In the figure:

1. A first shaft; 11, a first channel, 12, a yarn dividing block;

2. a second shaft 21, a second channel;

3. A first rotating disc;

4. a first guide roller assembly;

5. Tensioning assembly, 51, driving wheel, 52, pinch roller, 53, tensioning driving part, 531, tensioning driving part, 532, driving gear, 533, driven gear, 54, extruding part, 541, swinging frame, 542, elastic part, 543, hinging shaft;

61. the first counterweight part and the second counterweight part are 62;

7. The second rotating disc, 71, the second guide roller assembly, 72, the limiting assembly;

8. and 81, a wrapping driving piece.

Detailed Description

The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.

The utility model relates to a wrapping mechanism which is used for wrapping a wrapping belt outside a wire core.

A wrapping mechanism, which is shown in fig. 1 and 4, comprises a first shaft 1 and a second shaft 2 which are coaxial, wherein the second shaft 2 is sleeved outside the first shaft 1 and can rotate relative to the first shaft 1. The first shaft 1 is used for guiding the wire core, the second shaft 2 is used for guiding the wrapping belt, and the wrapping belt can be wrapped outside the wire core when the second shaft 2 rotates relative to the first shaft 1.

Referring to fig. 3, the first shaft 1 is provided with a first passage 11 along an axial direction thereof, and a wire core is penetrated in the first passage 11 and can move along the axial direction of the first passage 11 under the driving of a wire core driving member (not shown). Both ends of the first shaft 1 pass through the second shaft 2, and the length of the second shaft 2 is smaller than that of the first shaft 1. The second shaft 2 is provided with a second channel 21 parallel to the first channel 11, the second channel 21 is used for the belting to pass through, the belting can move along the second channel 21 under the pulling of the wire core, and meanwhile, the belting can rotate around the first shaft 1 synchronously with the second shaft 2, so that the belting can be wound on the wire core in the process. The first shaft 1 and the second shaft 2 which are coaxial and sleeved reduce the axial length of the wrapping mechanism, the structure is more compact, and the occupied area is small.

One end part of the second shaft 2 is fixed with a first rotating disc 3, and a first guide roller assembly 4 is fixed on the first rotating disc 3 and used for guiding the wrapping tape. The wrapping tape that wears out from second passageway 21 is fixed on the sinle silk that passes first passageway 11 through tensioning assembly 5 and wire roller subassembly, and the one end of wrapping tape is fixed this moment, and when second shaft 2 and first carousel 3 rotated, the wrapping tape can twine on the sinle silk, simultaneously because the sinle silk removes along self axis, and the wrapping tape twines in the different positions of sinle silk back.

In the above process, the moving speed of the wrapping tape is related to the rotating speed of the second shaft 2, but when the first rotating disc 3 rotates at a high speed, the wrapping tape can be tightly disturbed one by one along with inertia or wind, so that the pitch of the wrapping tape wrapping result is unstable, the wrapping tape is loose and collapses when the pitch is large and small, the stability of the wire core wrapping is obviously reduced, and therefore, the tensioning assembly 5 is arranged on the first rotating disc 3, and the tensioning assembly 5 and the first rotating disc 3 synchronously rotate, and can adjust the moving speed of the wrapping tape. The strap coming out of the second channel 21 can now be regulated by the tensioning assembly 5 so that the strap between the tensioning assembly 5 and the wire core is always in tension.

Referring to fig. 1, the tensioning assembly 5 includes a driving wheel 51, a pressing wheel 52 and a tensioning driving part 53, the driving wheel 51 is rotatably connected with the first rotating disc 3 and can rotate along its own axis under the driving of the tensioning driving part 53, the pressing wheel 52 is located at one side of the driving wheel 51 and parallel to the driving wheel 51, and the pressing wheel 52 is used for pressing the bag strap passing between the driving wheel 51 and the pressing wheel 52 towards the driving wheel 51. The driving wheel 51 can drive the belting to move by friction force between the driving wheel and the belting so as to enable the belting to move at a constant speed. Meanwhile, as the compression wheel 52 can move, on one hand, the wrapping belt can pass through conveniently, and on the other hand, when the rotating speed of the driving wheel 51 cannot meet the winding requirement, the wrapping belt can push the compression wheel 52 to swing towards the side far away from the driving wheel 51, so that the wrapping belt between the tensioning assembly 5 and the wire core is tensioned all the time.

The tensioning assembly 5 further comprises a pressing portion 54, the pressing portion 54 always giving a force to the pinch roller 52 to move towards the driving wheel 51. Referring to fig. 5, the pressing portion 54 includes a swing frame 541 pivotally connected to the first rotating disk 3 through a hinge shaft 543, and an elastic member 542, the pressing wheel 52 rotatably connected to the swing frame 541 and swinging synchronously with the swing frame 541, the elastic member 542 elastically driving the swing frame 541 by itself toward the driving wheel 51.

In this embodiment, the elastic member 542 drives the swinging frame 541 to swing toward the driving wheel 51, so as to press the pressing wheel 52 against the driving wheel 51.

In one embodiment, the elastic member 542 is a tension spring, one end of which abuts against a fixed lever on the first rotary plate, and the other end abuts against an end of the swing frame 541 remote from the hinge shaft 543. The tension spring has a pretightening force, that is, when the pinch roller 52 abuts against the driving wheel 51, the tension spring is in a compressed state, and when the swing frame 541 swings toward a side away from the driving wheel 51, the tension spring is continuously compressed.

In one embodiment, referring to fig. 2 and 3, the tension driving part 53 includes a tension driving member 531, a driving gear 532 and a driven gear 533, the driving gear 532 is sleeved outside the second shaft 2 and coaxially disposed with the second shaft 2, the driving gear 532 is driven by the tension driving member 531 to rotate, and the driven gear 533 and the driving wheel 51 are fixed and engaged with the driving gear 532.

The driving gear 532 is rotatably connected to the second shaft 2 with a rotation bearing provided therebetween, and the driving gear 532 is not rotated in synchronization with the first rotation disk 3 but rotated along its own axis by the tension driver 531. The driven gear 533 and the first rotating disc 3 rotate synchronously, but are meshed with the driving gear 532, so that the driven gear 533 can rotate relative to the first rotating disc 3, the driven gear 533 and the driving wheel 51 are coaxial, and the driving wheel 51 can rotate along the axis of the driving wheel 51 relative to the second rotating disc 7 while synchronously rotating with the second rotating disc 7.

The wrapping mechanism further comprises a fixing frame 8, and a tensioning driving piece 531 is fixed on the fixing frame 8, and the tensioning driving piece 531 is connected with the driving gear 532 through a first transmission toothed belt and is used for driving the driving gear 532 to rotate. The driving gear 532 and the driven gear 533 are located on the same side of the first rotating disk 3, and the tension assembly 5 and the first guide roller assembly 4 are located on the other side of the first rotating disk.

The second shaft 2 passes through the fixing frame 8 and is rotationally connected with the fixing frame 8, and a wrapping driving piece 81 for driving the second shaft 2 to rotate is fixed on the fixing frame 8. The wrap around drive 81 is connected to the second shaft 2 by a transmission assembly, in this embodiment a second belt and a drive wheel.

Referring to fig. 1, the first guide roller assembly 4 includes a plurality of first guide rollers rotatably connected to the first rotary disk 3, and the first guide rollers have the same shape but different axial directions, and the wrapping tape is turned by the different first guide rollers, and finally wound around the core.

Because the first wire guide roller assembly and the tension assembly 5 have a certain weight, the center of gravity of the first rotating disc 3 is eccentric, so that the center of gravity of the first rotating disc 3 is not on the axis during rotation, and the wrapping tape is unevenly wrapped. Therefore, the first rotating disc 3 is also provided with a counterweight assembly, and the counterweight assembly can enable the gravity center of the first rotating disc 3 to be on the axis of the counterweight assembly, so that the winding uniformity of the wrapping tape is improved.

The weight component comprises a weight part I61 and a weight part II 62 which correspond to the tensioning component 5 and the first guide roller component 4, the weight of the weight part I61 is equal to that of the tensioning component 5 and is symmetrical relative to the center of the first rotating disc 3, and the weight part II is equal to that of the first guide roller component 4 and is symmetrical relative to the center of the first rotating disc 3.

The wire core comprises a plurality of guide wires, the wire core needs to be tidied before wrapping, the first shaft 1 extends out of the end part of the first rotating disc 3 and is provided with a wire dividing block 12, and a plurality of wire outlet holes which are arranged side by side and communicated with the first channel 11 are formed in the wire dividing block 12, as shown in the accompanying drawings. In this embodiment, the wire core includes three wires, so the wire holes are three, and the three wires respectively pass through the three wire holes.

In one embodiment, in order to guide the external strapping into the second channel, the wrapping mechanism further comprises a second rotatable plate 7 fixed to the other end of the second shaft 2, as shown in fig. 2, a second guiding roller assembly 71 being arranged on the second rotatable plate 7, the strapping being guided into the second channel 21 by the second guiding roller assembly 71. The second guiding roller assembly 71 is used for guiding the external wrapping tape into the second channel 21, and the second guiding roller assembly 71 comprises a plurality of second guiding rollers rotationally connected with the second rotating disc 7, and the second guiding rollers and the second rotating disc 7 synchronously rotate and can rotate along the axis of the second guiding rollers under the driving of the wrapping tape.

In one embodiment, the second rotating disc 7 and the first rotating disc 3 are both provided with a yielding hole communicated with the second channel 21, the wrapping tape enters the second channel 21 from the yielding hole on the second rotating disc 7, and the wrapping tape in the second channel 21 passes out from the yielding hole on the first rotating disc 3 and is wound on the wire core.

Referring to fig. 2, the second rotating disc 7 is provided with a limiting component 72 at a position close to the abdication hole, the limiting component 72 forms a limiting channel for the belting to pass through, and the limiting channel can adjust the position of the belting to align the belting to the abdication hole of the second rotating disc 7.

The specific working process of the embodiment is as follows, the wire core passes through the first channel 11, and three guide wires of the wire core respectively pass through the three wire outlet holes. One end of the wrapping tape enters the second channel 21 from the yielding hole on the second rotating disc 7, the wrapping tape in the second channel 21 passes through the yielding hole on the first rotating disc 3, and is fixed on the wire core after passing through the tensioning assembly 5 and the first guide roller assembly 4. After the wire core and the wrapping belt are fixed, the wrapping driving piece 81 drives the second shaft 2 to rotate, and meanwhile the wire core driving piece drives the wire core to rotate along the axis, and the wrapping belt is wound on the wire core. In this process, the tension driving member 531 drives the driving wheel 51 to rotate, and the driving wheel 51 adjusts the conveying speed of the tape during the tape winding process, so that the tape winding is more uniform.

The above embodiments are only for illustrating the technical concept and features of the present utility model, and are intended to enable those skilled in the art to understand the content of the present utility model and to implement the same, but are not intended to limit the scope of the present utility model, and all equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The wrapping mechanism is characterized by comprising:

the first shaft is provided with a first channel along the axial direction of the first shaft, and a wire core is arranged in the first channel in a penetrating manner;

The second shaft is coaxial with the first shaft, two ends of the first shaft extend out of the second shaft, the second shaft is sleeved outside the first shaft and can rotate along the axis of the second shaft, a second channel parallel to the first channel is formed in the second shaft, and the second channel is used for the wrapping belt to pass through;

The first rotating disc is fixedly connected with the end part of the second shaft, a first guide roller assembly and a tensioning assembly are arranged on the first rotating disc, the wrapping tape penetrating out of the second channel is fixed on the wire core penetrating through the first channel through the tensioning assembly and the wire guide roller assembly, and the tensioning assembly is used for adjusting the moving speed of the wrapping tape.

2. The wrapping mechanism of claim 1, wherein the tensioning assembly comprises a driving wheel, a pressing wheel and a tensioning driving part, the driving wheel is rotatably connected with the first rotating disc and can rotate along the axis of the driving wheel under the driving of the tensioning driving part, the pressing wheel is positioned at one side of the driving wheel and is parallel to the driving wheel, and the pressing wheel is used for pressing the wrapping tape passing between the driving wheel and the pressing wheel towards the driving wheel.

3. The lapping mechanism of claim 2, wherein the tensioning assembly comprises a pressing part, the pressing part comprises a swinging frame and an elastic piece, the swinging frame is pivoted with the first rotating disc through a hinge shaft, the pressing wheel is rotatably connected with the swinging frame and swings synchronously with the swinging frame, and the elastic piece drives the swinging frame to swing towards the driving wheel by utilizing self elasticity.

4. The lapping mechanism of claim 3, wherein the elastic member is a tension spring, one end of the tension spring abuts against a fixed rod on the first rotating disc, and the other end abuts against one end of the swinging frame away from the hinge shaft.

5. The wrapping mechanism of claim 2, wherein the tensioning driving part comprises a tensioning driving part, a driving gear and a driven gear, the driving gear is sleeved outside the second shaft and is coaxially arranged with the second shaft, the driving gear rotates under the driving of the tensioning driving part, and the driven gear and the driving wheel are fixed and meshed with the driving gear.

6. The lapping mechanism of claim 1, wherein the first rotating plate is further provided with a weight assembly, the weight assembly comprises a weight portion I and a weight portion II corresponding to the tensioning assembly and the first guide roller assembly, and the weight portion I and the weight portion II are respectively equal in weight and center-symmetrical to the tensioning assembly and the first guide roller assembly.

7. The wrapping mechanism of claim 1, wherein the first shaft extends out of the end portion of the first rotating disc and is provided with a wire dividing block, and a plurality of wire outlet holes which are arranged side by side and communicated with the first channel are formed in the wire dividing block.

8. The wrapping mechanism according to any one of claims 1 to 7, further comprising a second rotating disc fixed to the other end of the second shaft, a second guide roller assembly being provided on the second rotating disc, the wrapping tape being guided into the second passage by the second guide roller assembly.

9. The wrapping mechanism of claim 8, wherein the second rotating disc and the first rotating disc are provided with a yielding hole communicated with the second channel, the second rotating disc is provided with a limiting assembly at a position close to the yielding hole, and the limiting assembly forms a limiting channel for the wrapping belt to pass through.

10. The wrapping mechanism of claim 1, wherein the wrapping mechanism further comprises a fixing frame, the second shaft penetrates through the fixing frame and is rotatably connected with the fixing frame, and a wrapping driving piece for driving the second shaft to rotate is fixed on the fixing frame.