CN218201458U - Switching device and take-up equipment - Google Patents

Abstract

The utility model discloses a switching device and a take-up device, relating to the technical field of take-up devices, wherein the switching device comprises a support body; the take-up assembly I is connected with a first hook body; the second wire take-up component is arranged opposite to the first wire take-up component and is connected with a second wire hook body; the first roller assembly, the second roller assembly and the third roller assembly are sequentially arranged along the direction from the first wire collecting assembly to the second wire collecting assembly; the wire assembly is movably connected with the support body; the controller is connected with the wire take-up assembly I, the wire take-up assembly II, the roller assembly I, the roller assembly II and the roller assembly III; the first take-up assembly and the second take-up assembly are rotationally connected to the supporting body, the first roller assembly, the second roller assembly and the third roller assembly are rotationally connected to the supporting body, and the first hook body and the second hook body are axially symmetrically distributed about the second roller assembly. To the technical problem that the line reliability of catching of admission machine is low, the utility model discloses a technological effect lies in that it catches the line reliability high.

Description

Switching device and take-up equipment

Technical Field

The utility model relates to a receive line equipment technical field, concretely relates to auto-change over device and receive line equipment.

Background

The wire take-up device is a device for collecting linear bodies on a related wire take-up device, generally comprises a manual wire take-up device, a semi-automatic wire take-up device and a full-automatic wire take-up device, and is widely applied to the field of wire bundle collection.

Relevant receipts line equipment need switch the operation at receipts line in-process, effectively increases the wire storage volume of receiving line equipment, chinese utility model patent, the bulletin number: CN217263951U, announcement date: 2022-08-23, a semi-automatic reel changing take-up machine is announced, which comprises a machine body, wherein at least two take-up reels are arranged in the machine body, the take-up reels are positioned on the same horizontal plane, a switching assembly capable of moving left and right is arranged above the take-up reels, a wiring device is arranged on the take-up reels and used for pulling a wire on the switching assembly to a wiring device on the take-up reels when the switching assembly is close to the switching assembly, and a cutting device for cutting the wire on the other working take-up reel after the wiring device receives the wire is further arranged in the machine body. The utility model discloses a receive the line operation through automatic switch-over, improved production efficiency, reduced staff's working strength, reduced the human cost. The wire catching hook has the defects that the wire catching hook is adopted to catch the wire, so that the reliability of the wire catching is low.

SUMMERY OF THE UTILITY MODEL

To the technical problem that the line reliability of catching of admission machine is low, the utility model provides a auto-change over device and receipts line equipment, its line reliability of catching is high.

In order to solve the above problem, the utility model provides a technical scheme does:

a switching device, comprising:

a support body;

the wire take-up assembly I is connected with a wire hooking body I;

a second take-up assembly which is arranged opposite to the first take-up assembly and is connected with a second hook body;

the first roller assembly, the second roller assembly and the third roller assembly are sequentially arranged along the direction from the first wire take-up assembly to the second wire take-up assembly;

the wire assembly is movably connected with the support body;

the controller is connected with the first wire take-up assembly, the second wire take-up assembly, the first roller assembly, the second roller assembly and the third roller assembly;

the first wire take-up assembly and the second wire take-up assembly are rotationally connected to the support body, the first roller assembly, the second roller assembly and the third roller assembly are rotationally connected to the support body, and the first wire hooking body and the second wire hooking body are axially symmetrically distributed about the second roller assembly.

Optionally, the first roller assembly comprises a first roller body and a first telescopic piece which are connected with each other, the second roller assembly comprises a second roller body and a second telescopic piece which are connected with each other, the third roller assembly comprises a third roller body and a third telescopic piece which are connected with each other, the first roller body and the first telescopic piece are connected with each other, the second roller body and the second telescopic piece are connected with each other, the third roller body and the third telescopic piece are connected with each other through a gear and rack unit, the first telescopic piece, the second telescopic piece and the third telescopic piece are connected to the support body, and the first telescopic piece, the second telescopic piece and the third telescopic piece are connected with the controller.

Optionally, the rack and pinion unit includes:

a carrier;

a gear rotatably connected to the carrier;

the rack is movably connected to the carrier and matched with the gear;

the gear is connected with the first roller body, the second roller body or the third roller body, and the rack is connected with the first telescopic piece, the second telescopic piece or the third telescopic piece.

Optionally, the length of the second roller body is greater than the lengths of the first roller body and the third roller body.

Optionally, the rack-and-pinion unit further includes a limiting body connected to the rack, a guide groove is formed in the supporting body, limiting grooves communicated with the guide groove are formed in two sides of the supporting body, the rack is located in the guide groove, and two ends of the limiting body are located in the limiting grooves.

Optionally, a first accommodating groove is formed in the first hooking line body, and a second accommodating groove is formed in the second hooking line body.

Optionally, the first wire take-up assembly comprises a first driver and a first wire take-up body connected with a driving shaft of the first driver, the second wire take-up assembly comprises a second driver and a second wire take-up body connected with a driving shaft of the second driver, the first wire hook body is connected to the first wire take-up body, the second wire hook body is connected to the second wire take-up body, the first driver and the second driver are both connected with the controller, the first driver and the second driver are both connected to the support body, and the first wire take-up body and the second wire take-up body are both rotatably connected to the support body.

Optionally, the wire assembly includes:

a first telescopic unit;

the second telescopic unit is connected with the telescopic end of the first telescopic unit;

and the guide wheel unit is rotationally connected with the telescopic end of the second telescopic unit.

The wire take-up equipment comprises a switching device and a wire storage assembly which is rotatably connected to a support body.

Optionally, the wire storage assembly includes:

a first wheel rotatably connected to the support body;

the sliding block is movably connected to the supporting body;

a second wheel rotatably connected to the slide block;

a third driver connected to the support body;

a third wheel connected with the driver of the third driver;

the potentiometer is rotationally connected to the support body;

the driving shaft of the potentiometer and the driving shaft of the third driver are connected through a gear unit, the second wheel and the third wheel are connected through a rope, and the third driver and the potentiometer are both connected with the controller.

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect: the first wire hooking body is used for hooking the wire harness to the first wire collecting assembly, the second wire hooking body is used for hooking the wire harness to the second wire collecting assembly, and the first wire hooking body and the second wire hooking body can be clamping bodies, claw-shaped bodies and the like; the first roller assembly is used for lifting the wiring harness, the wiring harness is convenient to be matched with the first wire hooking body, the third roller assembly is used for lifting the wiring harness, the wiring harness is convenient to be matched with the second wire hooking body, the second roller assembly is used for pressing the wiring harness, the wiring harness is convenient to be located on the surface of the first roller assembly or the third roller assembly, the wiring harness is convenient to be matched with the first wire hooking body or the second wire hooking body, accordingly, the failure of matching of the wiring harness and the first wire hooking body or the second wire hooking body is prevented, and the reliability of wire catching is high.

Drawings

Fig. 1 is one of schematic structural diagrams of a wire rewinding device according to an embodiment of the present invention;

fig. 2 is a second schematic structural view of a wire rewinding device according to an embodiment of the present invention;

fig. 3 is a partial view of a according to an embodiment of the present invention;

fig. 4 is a third schematic structural view of a wire rewinding device according to an embodiment of the present invention;

fig. 5 is a partial view of a part B according to an embodiment of the present invention;

fig. 6 is a fourth schematic structural view of a wire rewinding device according to an embodiment of the present invention;

in the figure: 1. a first wire take-up assembly; 11. a first driver; 12. taking up a first wire body; 2. a second wire take-up assembly; 21. a second driver; 22. a second wire collecting body; 3. a support body; 4. hooking the first wire body; 41. a first accommodating groove; 5. hooking a second thread body; 51. accommodating a second tank; 6. a first roller assembly; 61. a first roller body; 62. a first telescopic part; 7. a second roller assembly; 71. a second roller body; 72. a second telescopic part; 8. a roller assembly III; 81. a third roller body; 82. a third telescopic part; 91. a carrier; 911. a guide groove; 912. a limiting groove; 92. a rack; 93. a limiting body; 94. a gear; 10. a wire assembly; 101. a first telescopic unit; 102. a second expansion unit; 103. a guide wheel unit; 100. a first wheel; 110. a slider; 120. a second wheel; 130. a third driver; 140. a potentiometer; 150. a gear unit; 160. a third wheel; 170. a rope-shaped body; 200. a wire harness.

Detailed Description

For a further understanding of the present invention, reference will be made to the drawings and examples for a detailed description of the invention.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not to be construed as limiting the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that, in the present application, the embodiments and features of the embodiments may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example 1

With reference to fig. 1 to 6, the present embodiment provides a switching device, including:

a support body 3;

the take-up assembly I1 is connected with a first wire hooking body 4;

the wire take-up assembly II 2 is arranged opposite to the wire take-up assembly I1, and a wire hooking body II 5 is connected to the wire take-up assembly II 2;

the first roller assembly 6, the second roller assembly 7 and the third roller assembly 8 are sequentially arranged along the direction from the first wire take-up assembly 1 to the second wire take-up assembly 2;

a lead assembly 10 movably connected with the support body 3;

the controller is connected with the wire take-up assembly I1, the wire take-up assembly II 2, the roller assembly I6, the roller assembly II 7 and the roller assembly III 8;

the take-up assembly I1 and the take-up assembly II 2 are rotationally connected to the supporting body 3, the roller assembly I6, the roller assembly II 7 and the roller assembly III 8 are rotationally connected with the supporting body 3, and the line hooking body I4 and the line hooking body II 5 are in axisymmetric distribution relative to the roller assembly II 7.

Specifically, when the first wire collecting assembly 1 and the second wire collecting assembly 2 are switched, when the first wire collecting assembly 1 collects a wire harness 200 with a preset length, the controller controls the wire assembly 10 to move towards the second wire collecting assembly 2, controls the second roller assembly 7 to rotate 90 degrees, and enables the second roller assembly 7 to be changed from a vertical state to a horizontal state, so that the second roller assembly 7 presses the wire harness 200 down to the surface of the third roller assembly 8, controls the third roller assembly 8 to rotate 90 degrees, so that the third roller assembly 8 is changed from a horizontal state to a vertical state, so that the third roller assembly 8 lifts the wire harness 200 up, meanwhile, the controller opens the second wire collecting assembly 2, enables the second wire collecting assembly 2 to rotate in a direction opposite to that of the first wire collecting assembly 1, enables the second wire hooking body 5 connected to the second wire collecting assembly 2 to hook the wire harness 200, and tears the wire harness 200 off under the rotating action of the second roller assembly 2, and finally resets the second roller assembly 7 and the third roller assembly 8, so that the switching is completed, and when the wire harness 200 with the preset length is collected on the second wire collecting assembly 2, the same switching method is not shown in fig. 1.

The support body 3 is used for supporting the wire take-up assembly I1, the wire take-up assembly II 2, the lead assembly 10 and the like, and the support body 3 can be a frame body, a table-shaped body and the like; the wire rewinding assembly I1 and the wire rewinding assembly II 2 are used for containing the wire harness 200, and the wire rewinding assembly I1 and the wire rewinding assembly II 2 can respectively comprise drivers such as a high-speed motor and a low-speed motor and a wire rewinding disc and the like, wherein the drivers are used for driving the wire rewinding disc to rotate, and the wire rewinding disc is used for collecting the wire harness 200; the first hooking body 4 is used for hooking the wiring harness 200 to the first wire collecting assembly 1, the second hooking body 5 is used for hooking the wiring harness 200 to the second wire collecting assembly 2, and the first hooking body 4 and the second hooking body 5 can be clamping bodies, claw-shaped bodies and the like; the first roller assembly 6 is used for lifting the wiring harness 200, so that the wiring harness 200 is matched with the first hook wire body 4, the third roller assembly 8 is used for lifting the wiring harness 200, so that the wiring harness 200 is matched with the second hook wire body 5, the second roller assembly 7 is used for pressing down the wiring harness 200, so that the wiring harness 200 is located on the surface of the first roller assembly 6 or the third roller assembly 8, so that the wiring harness 200 is matched with the first hook wire body 4 or the second hook wire body 5, and therefore the failure of matching of the wiring harness 200 and the first hook wire body 4 or the second hook wire body 5 is prevented, and the reliability of the line catching is high, wherein the first roller assembly 6, the second roller assembly 7 and the third roller assembly 8 are used for converting sliding friction between the wiring harness 200 and rolling friction and effectively reducing friction force, so that damage to the wiring harness 200 is effectively reduced, the first roller assembly 6, the second roller assembly 7 and the third roller assembly 8 can comprise a rotating unit, a barrel-shaped body and the like, the rotating unit is used for driving the barrel-shaped body to rotate, the barrel-shaped body is used for pressing down or lifting up the wiring harness 200, and the rotating unit can be a combination of a pneumatic, a hydraulic expansion piece, a rack, a high-speed motor and the like; the wire assembly 10 is used for guiding the wire harness 200, the wire assembly 10 can comprise a telescopic unit, a guide wheel and the like, the telescopic unit can be an assembly body of a screw rod and a nut, and the telescopic unit can also be a pneumatic, hydraulic or other telescopic device; because the first wire hooking body 4 and the second wire hooking body 5 are in axial symmetry distribution about the second roller assembly 7, no matter the first wire winding assembly 1 or the second wire winding assembly 2 needs to be replaced, the wire assembly 10 only needs to move for equal distances and then is matched with the first roller assembly 6, the second roller assembly 7 and the like, so that the wire harness 200 can be matched with the first wire hooking body 4 or the second wire hooking body 5, and the convenience of wire catching is improved.

Further, the first roller assembly 6 comprises a first roller body 61 and a first expansion part 62 which are connected with each other, the second roller assembly 7 comprises a second roller body 71 and a second expansion part 72 which are connected with each other, the third roller assembly 8 comprises a third roller body 81 and a third expansion part 82 which are connected with each other, the first roller body 61 is arranged between the first expansion part 62 and the second expansion part 71, the second roller body 71 is arranged between the second expansion part 72 and the third expansion part 81, the third roller body 81 and the third expansion part 82 are connected through a gear and rack unit, the first expansion part 62, the second expansion part 72 and the third expansion part 82 are connected to the support body 3, and the first expansion part 62, the second expansion part 72 and the third expansion part 82 are connected with the controller.

Specifically, the first extensible member 62 drives the first roller body 61 to rotate through the rack and pinion unit, the second extensible member 72 drives the second roller body 71 to rotate through the rack and pinion unit, the third extensible member 82 drives the third roller body 81 to rotate through the rack and pinion unit, the rack and pinion unit enables the first extensible member 62, the second extensible member 72 and the third extensible member 82 to facilitate control of the rotation angles of the first roller body 61, the second roller body 71 and the third roller body 81, so that the first roller body 61 can accurately lift the wiring harness 200 and enable the wiring harness 200 to be matched with the first hook line body 4, and the second roller body 71 can accurately lift the wiring harness 200 and enable the wiring harness 200 to be matched with the second hook line body 5, so that the reliability of line catching is high, wherein the first extensible member 62, the second extensible member 72 and the third extensible member 82 can be pneumatic extensible members, hydraulic extensible members or electric extensible members, the first roller body 61, the second roller body 71 and the third roller body 81 can be tubular bodies, and the like, as shown in fig. 3.

Further, the rack and pinion unit includes:

a carrier 91;

a gear 94 rotatably connected to the carrier 91;

a rack 92 movably connected to the carrier 91, the rack 92 being engaged with a gear 94;

the gear 94 is connected with the first roller body 61, the second roller body 71 or the third roller body 81, and the rack 92 is connected with the first expansion piece 62, the second expansion piece 72 or the third expansion piece 82.

Specifically, the carrier 91 is used for carrying the gear 94, the rack 92, and the like, and the carrier 91 may be a block-shaped body, a plate-shaped body, and the like; gear 94 and rack 92 cooperate to facilitate rotation between roller body one 61 and first extension member 62, between roller body two 71 and second extension member 72, and between roller body three 81 and third extension member 82, gear 94 and rack 92 may be straight or helical, and when gear 94 is straight, rack 92 is also straight, and when gear 94 is helical, rack 92 is also helical.

Further, the length of the second roller body 71 is greater than the lengths of the first roller body 61 and the third roller body 81.

Specifically, the length of the second roller body 71 is relatively long, so that the second roller body 71 can press the wiring harness 200 positioned at a relatively high position down to the surfaces of the first roller body 61 and the third roller body 81 and can be matched with the first roller body 61 and the third roller body 81, the wiring harness 200 can be matched with the first hook line body 4 or the second hook line body 5 conveniently, the reliability of wire capturing is high, the lengths of the first roller body 61 and the third roller body 81 are relatively short, and materials can be effectively saved on the premise that the first roller body 61 and the third roller body 81 can lift the wiring harness 200 on the surface of the wiring harness 200.

Further, the rack and pinion unit further comprises a limiting body 93 connected to the rack 92, a guide groove 911 is formed in the supporting body 91, limiting grooves 912 communicated with the guide groove 911 are formed in the two sides of the supporting body 91, the rack 92 is located in the guide groove 911, and two ends of the limiting body 93 are located in the limiting grooves 912.

Specifically, the supporting body 91 is used for supporting a guide groove 911 and a limiting groove 912, the guide groove 911 is used for accommodating a rack 92, the limiting groove 912 is used for accommodating a limiting body 93, and when the rack 92 moves in the guide groove 911, the limiting effect is good, so that the rotation angles of the first roller body 61, the second roller body 71 and the third roller body 81 are conveniently limited, the first roller body 61 is convenient to accurately lift the wiring harness 200 and enable the wiring harness 200 to be matched with the first hooking body 4, and the second roller body 71 is convenient to accurately lift the wiring harness 200 and enable the wiring harness 200 to be matched with the second hooking body 5, so that the wiring harness 200 is effectively matched with the first hooking body 4 or the second hooking body 5, and the reliability of wire capturing is high, wherein the limiting body 93 can be a column, a rod or the like, and the cross-sectional shapes of the guide groove 911 and the limiting groove 912 can be rectangular, trapezoidal or the like.

Furthermore, a first accommodating groove 41 is formed in the first hooking line body 4, and a second accommodating groove 51 is formed in the second hooking line body 5.

Specifically, the first accommodating groove 41 is supported by the first hooking body 4 and is used for accommodating the wire harness 200; the second accommodating groove 51 is borne by the second hooking body 5 and is used for accommodating the wire harness 200; the cross-sectional shapes of the first receiving groove 41 and the second receiving groove 51 may be rectangular, trapezoidal, etc.

Further, the wire take-up assembly I1 comprises a first driver 11 and a first wire take-up body 12 connected with a driving shaft of the first driver 11, the wire take-up assembly II 2 comprises a second driver 21 and a second wire take-up body 22 connected with the driving shaft of the second driver 21, the first wire take-up body 4 is connected to the first wire take-up body 12, the second wire take-up body 5 is connected to the second wire take-up body 22, the first driver 11 and the second driver 21 are both connected with a controller, the first driver 11 and the second driver 21 are both connected to the support body 3, and the first wire take-up body 12 and the second wire take-up body 22 are both rotatably connected to the support body 3.

Specifically, the first driver 11 is controlled by the controller and is used for driving the first take-up body 12 to rotate; the second driver 21 is controlled by the controller and is used for driving the second wire take-up body 22 to rotate; the first driver 11 and the second driver 21 can be high-speed motors, low-speed motors or constant-speed motors and the like; the first wire-receiving body 12 and the second wire-receiving body 22 can be a disk-shaped body, a cylinder-shaped body, etc.

Further, the wire assembly 10 includes:

a first expansion unit 101;

the second telescopic unit 102 is connected with the telescopic end of the first telescopic unit 101;

and the guide wheel unit 103 is rotatably connected with the telescopic end of the second telescopic unit 102.

Specifically, the first telescopic unit 101 is used for driving the second telescopic unit 102 to move in a telescopic mode, the second telescopic unit 102 is used for driving the guide wheel unit 103 to move in a telescopic mode, the guide wheel unit 103 can move in two planes conveniently, the wire harness 200 can be moved to the most appropriate position conveniently, the first telescopic unit 101 and the second telescopic unit 102 can be ball screw and nut telescopic units, trapezoidal screw and nut telescopic units and the like, and the guide wheel unit 103 can be a cylinder, a spheroid and the like, as shown in fig. 2.

Example 2

With reference to fig. 1 to 6, the present embodiment provides a wire rewinding device, including the switching device of embodiment 1, and further including a wire storage assembly rotatably connected to the supporting body 3.

Specifically, the wire storage assembly is supported by the support body 3, and is used for storing the wire harness 200, and storing the wire harness 200 through the wire assembly 10, the wire collection assembly 1 and the like, and the wire storage assembly can be a cylindrical body, a disc-shaped body and the like.

Further, the wire storage assembly comprises:

a first wheel 100 rotatably connected to the support body 3;

a slider 110 movably attached to the support body 3;

a second wheel 120 rotatably connected to the sliding block 110;

a third driver 130 connected to the support body 3;

a third wheel 160 connected to the drive of the third drive 130;

a potentiometer 140 rotatably connected to the support body 3;

the driving shafts of the potentiometer 140 and the third driver 130 are connected through a gear unit 150, the second wheel 120 and the third wheel 160 are connected through a rope 170, and the third driver 130 and the potentiometer 140 are both connected with a controller.

Specifically, when the first wire rewinding assembly 1 is rewinding, it should be noted that the third driver 130 is always in an open state, when the rotation speed of the first wire rewinding assembly 1 is too low, the third driver 130 drives the third wheel 160 to rotate, the third wheel 160 drives the rope 170 to move, the second wheel 120 and the slider 110 are driven by the rope 170 to move towards the third wheel 160, meanwhile, the potentiometer 140 rotates and transmits a rotation signal to the controller, and the controller increases the rotation speed of the first wire rewinding assembly 1, so that the second wheel 120 moves towards the direction far from the third wheel 160, and the rope 170 moves towards the direction far from the third wheel 160 and returns to the balance position, so that the whole process is a dynamic balance process, as shown in fig. 6.

The first wheel 100 is used for storing wires and playing a role of a certain wire, and the first wheel 100 can be a cylinder, a circular truncated cone and the like; the sliding block 110 is used for enabling the second wheel 120 and the support body 3 to move relatively, and the sliding block 110 can be a plate-shaped body, a block-shaped body and the like which are provided with a plurality of channels, wherein the cross section of each channel can be circular, oval and the like; the second wheel 120 is used for conducting wires, and the second wheel 120 can be a cylindrical body, a circular truncated cone body and the like; the third driver 130 drives the third wheel 160 and the potentiometer 140 to rotate simultaneously through the gear unit 150, and the third driver 130 can be an alternating current servo motor, a direct current servo motor and the like; the third wheel 160 drives the second wheel 120 to move through a rope 170, and the rope 170 can be a cotton rope, a hemp rope and the like; the potentiometer 140 is used for transmitting the rotation signal to the controller, and the potentiometer 140 may be a direct sliding potentiometer, a duplex potentiometer, or the like.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims (10)

1. A switching device, comprising:

a support body;

the take-up assembly I is connected with a first hook body;

a second wire take-up component which is arranged opposite to the first wire take-up component and is connected with a second wire hook body;

the first roller assembly, the second roller assembly and the third roller assembly are sequentially arranged along the direction from the first take-up assembly to the second take-up assembly;

the wire assembly is movably connected with the support body;

the controller is connected with the first wire take-up assembly, the second wire take-up assembly, the first roller assembly, the second roller assembly and the third roller assembly;

the first wire take-up assembly and the second wire take-up assembly are rotationally connected to the support body, the first roller assembly, the second roller assembly and the third roller assembly are rotationally connected to the support body, and the first wire hooking body and the second wire hooking body are axially symmetrically distributed about the second roller assembly.

2. The switching device according to claim 1, wherein the first roller assembly comprises a first roller body and a first expansion member which are connected with each other, the second roller assembly comprises a second roller body and a second expansion member which are connected with each other, the third roller assembly comprises a third roller body and a third expansion member which are connected with each other, the first roller body is connected with the first expansion member, the second roller body is connected with the second expansion member, the third roller body is connected with the third expansion member through a gear and rack unit, the first expansion member, the second expansion member and the third expansion member are connected with the support body, and the first expansion member, the second expansion member and the third expansion member are connected with the controller.

3. The switching device according to claim 2, wherein the rack and pinion unit comprises:

a carrier;

a gear rotatably connected to the carrier;

the rack is movably connected to the carrier and matched with the gear;

the gear is connected with the first roller body, the second roller body or the third roller body, and the rack is connected with the first expansion piece, the second expansion piece or the third expansion piece.

4. The switching device according to claim 2, wherein the length of said second roller body is greater than the length of said first roller body and the length of said third roller body.

5. The switching device according to claim 3, wherein the rack-and-pinion unit further comprises a limiting body connected to the rack, the supporting body is provided with a guide groove, both sides of the supporting body are provided with limiting grooves communicated with the guide groove, the rack is located in the guide groove, and both ends of the limiting body are located in the limiting grooves.

6. The switching device of claim 1, wherein a first receiving groove is formed on the first wire hooking body, and a second receiving groove is formed on the second wire hooking body.

7. The switching device according to claim 1, wherein the first wire retrieving assembly comprises a first driver and a first wire retrieving body connected to a driving shaft of the first driver, the second wire retrieving assembly comprises a second driver and a second wire retrieving body connected to a driving shaft of the second driver, the first wire hooking body is connected to the first wire retrieving body, the second wire hooking body is connected to the second wire retrieving body, the first driver and the second driver are both connected to the controller, the first driver and the second driver are both connected to the support body, and the first wire retrieving body and the second wire retrieving body are both rotatably connected to the support body.

8. The switching device of claim 1, wherein the wire assembly comprises:

a first telescopic unit;

the second telescopic unit is connected with the telescopic end of the first telescopic unit;

and the guide wheel unit is rotationally connected with the telescopic end of the second telescopic unit.

9. A wire takeup apparatus, comprising a switching device as claimed in any one of claims 1 to 8, and further comprising a wire storage assembly rotatably connected to the support body.

10. A wire takeup apparatus as claimed in claim 9, wherein the wire storage assembly comprises:

the first wheel is rotationally connected to the support body;

the sliding block is movably connected to the supporting body;

a second wheel rotatably connected to the slide block;

a third driver connected to the support body;

a third wheel connected with the driver of the third driver;

the potentiometer is rotationally connected to the support body;

the driving shaft of the potentiometer and the driving shaft of the third driver are connected through a gear unit, the second wheel and the third wheel are connected through a rope, and the third driver and the potentiometer are both connected with the controller.

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