Winding machine
By designing a winder with a trolley, a mobile door and a reel conveyor, the heavy transfer of finished yarn rolls in traditional twisters is solved, and automatic transfer is achieved, reducing the work intensity of staff and improving efficiency.
Patent Information
- Application Number
- CN202422010521.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-19
AI Technical Summary
During the operation of traditional twisting machines, the finished yarn package is heavier, resulting in heavy transfer of finished products and increasing the work intensity of staff.
A winder is designed, including a trolley, a moving door and a reel conveyor. The trolley drives the moving door to move through the trolley, adjusts the orientation and height of the reel conveyor, and realizes the automatic transfer of the finished yarn roll.
The need for manual handling of finished yarn rolls reduces the proportion of manual participation, reduces the work intensity of staff, and improves work efficiency.
Smart Images

Figure CN222907188U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of winding, in particular to a winding machine. Background Art
[0002] In modern textile industry, the machinery for yarn processing includes warping machines, twisting machines, winding machines, etc. Among them, the twisting machine is a textile machinery that twists multiple strands of fine yarns into one strand. Its function is to process yarns or combined yarn products into linear products for weaving and knitting. As a core equipment in the textile field, the twisting machine is widely used in the production fields such as tyre cord fabric and carpet yarn. The finished yarn after twisting can be used in the next weaving process. The yarn produced by the twisting machine is placed in the form of a yarn roll. During the operation of the traditional twisting machine, once a yarn roll is wound, it needs to be manually removed and replaced with a new empty yarn roll to continuously carry out the twisting work. However, the finished yarn roll is heavy and the quantity of general products is also relatively large, so the work of transferring the finished products of the twisting machine is heavy. Therefore, a winding machine is proposed. Content of the Utility Model
[0003] Utility Model Objective: To provide a winding machine that can reduce the working intensity of the finished product transfer work.
[0004] Technical Solution: The winding machine provided by the utility model includes an overhead crane, an overhead rail, a ground rail, a moving door and a reel conveying mechanism; the overhead crane travels on the overhead rail; the moving door is installed on the overhead crane and is driven by the overhead crane to move along the overhead rail; a bottom moving column matching with the ground rail is installed on the lower edge of the moving door; the reel conveying mechanism is installed on the moving door, and the orientation and height position of the reel conveying mechanism are adjusted by the moving door, and the finished yarn roll is transferred by the reel conveying mechanism.
[0005] Further, the overhead crane includes a top moving frame and a top driving motor; two lower traveling wheels walking on the lower side of the overhead rail are rotatably installed on the top moving frame; two upper traveling wheels walking on the upper side of the overhead rail are installed on the top moving frame through top brackets, and the two upper traveling wheels are respectively corresponding to the two lower traveling wheels in position; the top driving motor is used to drive one of the upper traveling wheels to rotate; top guiding units for clamping the overhead rail are installed on the top moving frame and the two top brackets.
[0006] Further, the moving door includes a lifting driving mechanism, a rotation driving mechanism, a posture adjusting frame and a control cabin; the control cabin is installed on the posture adjusting frame; the bottom moving column is fixed at the bottom of the posture adjusting frame; the top of the posture adjusting frame is rotatably installed on the overhead crane through a turntable; the rotation driving mechanism is used to drive the turntable to rotate relative to the overhead crane; the reel conveying mechanism is vertically slidably installed on the posture adjusting frame; the lifting driving mechanism is used to drive the reel conveying mechanism to move vertically.
[0007] Furthermore, the lifting drive mechanism includes a lifting drive motor and two lifting drive blocks; the two lifting drive blocks are fixed on the reel conveying mechanism; the lifting drive motor synchronously drives the two lifting drive blocks to lift and lower through two synchronous belt transmission pairs.
[0008] Furthermore, radar ranging sensors are installed on both the left and right sides of the bottom moving column.
[0009] Furthermore, the drum conveying mechanism includes an installation back plate, a primary telescopic mechanism, a secondary telescopic mechanism, a shift fork, a toggle drive mechanism and a drum set shaft; the installation back plate is mounted on a vertical sliding installation moving door; the primary telescopic mechanism is mounted on the installation back plate; one end of the drum set shaft is laterally fixed on the primary telescopic mechanism for finished yarn roll set; the secondary telescopic mechanism is mounted on the primary telescopic mechanism, and the primary telescopic mechanism drives the secondary telescopic mechanism and the drum set shaft to move laterally; the toggle drive mechanism is mounted on the secondary telescopic mechanism, and the secondary telescopic mechanism drives the toggle drive mechanism to move laterally; the shift fork is mounted on the toggle drive mechanism, and the toggle drive mechanism drives the shift fork to move laterally to drive the finished yarn roll away from the drum set shaft.
[0010] Furthermore, the first-stage telescopic mechanism includes a transverse plate, a first-stage driving motor and a first-stage gear rack pair; the transverse plate is installed on the mounting back plate in a transverse sliding manner; one end of the tube sleeve shaft is laterally fixed on the transverse plate; the first-stage driving motor is installed on the transverse plate, and drives the transverse plate to move laterally through the first-stage gear rack pair; the second-stage telescopic mechanism is installed on the transverse plate.
[0011] Furthermore, the secondary telescopic mechanism includes a secondary drive motor, a secondary gear rack pair and a transverse moving bracket; the transverse moving bracket is installed on the primary telescopic mechanism in a transverse sliding manner; the secondary drive motor is installed on the primary telescopic mechanism, and drives the transverse moving bracket to move laterally through the secondary gear rack pair; the toggle drive mechanism is installed on the transverse moving bracket.
[0012] Furthermore, the toggle drive mechanism includes a toggle drive motor, a toggle drive screw and a toggle sliding seat; the toggle sliding seat is laterally slidably installed on the secondary telescopic mechanism; the toggle drive screw is rotatably installed laterally on the secondary telescopic mechanism, and the threaded screw penetrates the toggle sliding seat; the toggle drive motor is used to drive the toggle drive screw to rotate; the shift fork is fixed on the toggle sliding seat; an avoidance groove is provided on the shift fork; and the reel set shaft penetrates the avoidance groove.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The overhead crane is used to drive the moving door to move in position, and the moving door adjusts the height position and orientation of the drum conveying mechanism, so that the drum conveying mechanism can align with the take-up machine in the production line to pick up the finished yarn roll, or transfer the finished yarn roll to the finished product rack in the production line, thereby realizing the transfer of the finished yarn roll, eliminating the need for manual handling of the finished yarn roll, reducing the proportion of manual participation, and thus reducing the work intensity of the staff, and effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a perspective view of the present utility model;
[0015] Figure 2 is a front view of the present utility model;
[0016] Figure 3 is a perspective view of the overhead crane of the present utility model;
[0017] Figure 4 is a left view of the overhead crane of the present utility model;
[0018] Figure 5 is a perspective view of the moving door of the present utility model;
[0019] Figure 6 is a front view of the moving door of the present utility model;
[0020] Figure 7 is a perspective view of the drum conveying mechanism of the present utility model;
[0021] Figure 8 is a front view of the drum conveying mechanism of the present utility model;
[0022] Figure 9 is a side view of the drum conveying mechanism of the present utility model;
[0023] In the figure: 1. Overhead crane; 101. Top moving frame; 102. Top driving motor; 103. Top support; 104. Top guide wheel; 105. Upper walking wheel; 106. Lower walking wheel; 109. Barcode scanner;
[0024] 2. Moving door; 201. Rotary driving motor; 202. Turntable; 203. Internal gear ring; 204. Pose adjustment frame; 205. Control chamber; 206. Lifting guide rail; 207. Lifting driving block; 208. Lifting driving motor; 210. Active synchronous pulley; 211. Synchronous belt; 212. Radar ranging sensor; 213. Bottom moving column;
[0025] 3. Reel conveying mechanism; 301. Installation backplane; 302. First-level guide rail; 303. First-level driving motor; 304. First-level driving gear; 305. First-level driving rack; 306. Transverse moving plate; 307. Second-level driving motor; 308. Second-level driving gear; 309. Second-level driving rack; 310. Transverse moving support; 311. Second-level guide rail; 312. Pushing driving lead screw; 313. Fork; 314. Pushing driving motor; 315. Reel sleeve shaft; 316. Pushing sliding seat
[0026] 4. Finished yarn reel Specific implementation mode
[0027] The technical solution of the present utility model will be described in detail below with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the described embodiments
[0028] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations
[0029] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "left", "right", "front", "rear", "up", "down", "top", "bottom", etc. are all based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model
[0030] Embodiment 1
[0031] As Figures 1-9 shown, a winding machine provided by the present utility model includes: overhead crane 1, overhead rail, ground rail, moving door 2 and reel conveying mechanism 3; the overhead rail and the ground rail are parallel to each other and have corresponding positions; the overhead crane 1 travels on the overhead rail; the moving door 2 is installed on the overhead crane 1, and the moving door 2 is driven by the overhead crane to move along the overhead rail; a bottom moving column 213 matching the ground rail is installed on the lower edge of the moving door 2; the reel conveying mechanism 3 is installed on the moving door 2, and the orientation and height position of the reel conveying mechanism 3 are adjusted by the moving door 2, and the finished yarn reel 4 is transferred by the reel conveying mechanism 3
[0032] According to requirements, an overhead rail and a ground rail are set in the workshop, enabling the winding machine to be applied to the doffing production line. The overhead crane 1 drives the moving door 2 to move in position. The moving door adjusts the height position and orientation of the reel conveying mechanism 3, so that the reel conveying mechanism 3 can align with the twisting machine in the production line to pick up the finished yarn reel 4, or transfer the finished yarn reel 4 to the finished product rack in the production line, thereby realizing the transfer of the finished yarn reel 4 without manual handling of the finished yarn reel 4, reducing the proportion of manual participation, thus reducing the work intensity of the staff and effectively improving work efficiency.
[0033] Further, the overhead crane 1 includes a top moving frame 101 and a top driving motor 102; lower traveling wheels 106 that walk on the lower side of the overhead rail are rotatably installed on both the left and right sides of the top moving frame 101; two upper traveling wheels 105 that walk on the upper side of the overhead rail are installed on the top moving frame 101 through top brackets 103, and the two upper traveling wheels 105 correspond to the positions of the two lower traveling wheels 106 respectively; the top driving motor 102 is used to drive one of the upper traveling wheels 105 to rotate; a top guiding unit is installed on the left and right edges of the top moving frame 101 and the two top brackets 103; each top guiding unit includes two top guiding wheels 104 that sandwich the overhead rail; a trolley wire is installed on the overhead rail along the length direction; a current collector that cooperates with the trolley wire is installed on the top moving frame 101; a positioning QR code is set on the overhead rail, and a QR code scanner 109 for scanning the positioning QR code is installed on the top moving frame 101.
[0034] The top driving motor 102 is used to drive one of the upper traveling wheels 105 to rotate, driving the top moving frame 101 to move, so that the two upper traveling wheels 105 and the two lower traveling wheels 106 all walk along the overhead rail. At the same time, the two top guiding wheels 104 of the top guiding unit sandwich the overhead rail and walk, which can effectively prevent the overhead crane 1 from derailing; the positioning QR code can be set on the overhead rail according to requirements, and the overhead crane stops moving after the QR code scanner 109 scans the positioning QR code.
[0035] Further, the moving door 2 includes a lifting drive mechanism, a rotation drive mechanism, a posture adjustment frame 204, and a control cabin 205; the rotation drive mechanism includes a rotation drive motor 201 and a rotation gear pair; the rotation gear pair includes a rotation main gear and an internal gear ring 203.
[0036] The control bin 205 is installed on the posture adjustment frame 204; the bottom moving column 213 is fixed to the bottom of the posture adjustment frame 204; a turntable 202 rotatably installed on the top moving frame 101 is provided at the top of the posture adjustment frame 204; an internal gear ring 203 is installed on the upper side of the posture adjustment frame 204; a rotary drive motor 201 is installed on the top moving frame 101; a rotary main gear is installed on the output shaft of the rotary drive motor 201 and meshes with the internal gear ring 203; the reel conveying mechanism 3 is vertically slidably installed on the posture adjustment frame 204; a lifting drive mechanism is used to drive the reel conveying mechanism 3 to move vertically.
[0037] The rotary drive motor 201 is used to drive the main gear to rotate, so that the internal gear ring 203 drives the posture adjustment frame 204 to rotate, thereby realizing the orientation adjustment of the reel conveying mechanism 3.
[0038] Furthermore, the lifting drive mechanism includes a lifting drive motor 208, two lifting drive blocks 207, and two synchronous belt drive pairs; the synchronous belt drive pair includes a driving synchronous belt pulley 210, a driven synchronous belt pulley, and a synchronous belt 211.
[0039] Two lifting guide rails 206 are vertically provided on the posture adjustment frame 204; a lifting adjustment seat that is respectively slidably buckled on the two lifting guide rails 206 is provided on the reel conveying mechanism 3.
[0040] The driving synchronous belt pulleys 210 of the two synchronous belt drive pairs are all installed on the posture adjustment frame 204; the driven synchronous belt pulleys of the two synchronous belt drive pairs are all installed on the control bin 205 and are respectively vertically corresponding to the corresponding driving synchronous belt pulleys 210; the synchronous belt 211 is drivingly connected between the driving synchronous belt pulley 210 and the driven synchronous belt pulley; the lifting drive motor 208 is installed on the posture adjustment frame 204 and is used to drive the two driving synchronous belt pulleys 210 to rotate synchronously; the two lifting drive blocks 207 are respectively installed on the two synchronous belts 211 and are both fixed to the reel conveying mechanism 3.
[0041] The vertical sliding installation of the reel conveying mechanism 3 is realized by the cooperation between the two lifting guide rails 206 and the two lifting adjustment seats; the lifting drive motor 208 drives the two lifting drive blocks 207 to lift synchronously through the two synchronous belt drive pairs, thereby driving the reel conveying mechanism 3 to lift and realizing the height adjustment of the reel conveying mechanism 3.
[0042] Furthermore, radar ranging sensors 212 are installed on both the left and right sides of the bottom moving column 213. The radar ranging sensors 212 are used to scan a specified range. When there are obstacles within the specified range, the overhead crane 1 stops moving.
[0043] Furthermore, the roll conveying mechanism 3 includes a mounting back plate 301, a primary telescopic mechanism, a secondary telescopic mechanism, a shift fork 313, a shifting drive mechanism, and a roll set shaft 315;
[0044] The lifting adjustment seat and the lifting drive block 207 are both installed on the rear side of the mounting back plate 301; the first-level telescopic mechanism is installed on the mounting back plate 301; one end of the drum set shaft 315 is transversely fixed on the first-level telescopic mechanism, which is used to set the finished yarn roll 4; the second-level telescopic mechanism is installed on the first-level telescopic mechanism, and the first-level telescopic mechanism drives the second-level telescopic mechanism and the drum set shaft 315 to move transversely; the toggle drive mechanism is installed on the second-level telescopic mechanism, and the second-level telescopic mechanism drives the toggle drive mechanism to move transversely; the shift fork 313 is installed on the toggle drive mechanism, and the shift fork 313 is driven by the toggle drive mechanism to move transversely, so as to toggle the finished yarn roll 4 away from the drum set shaft 315.
[0045] The first-level telescopic mechanism is used to adjust the lateral position of the reel set shaft 315, so that the end of the reel set shaft 315 can be aligned with the twisting machine in the production line to take the finished yarn roll 4 or aligned with the finished product rack to output the finished yarn roll 4; the second-level telescopic mechanism is used to adjust the position of the toggle drive mechanism, and the toggle drive mechanism is used to adjust the lateral position of the fork 313, so that the fork 313 can toggle the finished yarn roll 4 off the reel set shaft 315. The second-level telescopic mechanism can ensure that the fork 313 can still toggle the finished yarn roll 4 off the reel set shaft 315 when the reel set shaft 315 is longer than the mounting back plate 301.
[0046] Furthermore, the first-stage telescopic mechanism includes a transverse plate 306, a first-stage driving motor 303 and a first-stage gear rack pair; the first-stage gear rack pair includes a first-stage driving gear 304 and a first-stage driving rack 305;
[0047] A primary guide rail 302 is horizontally installed on the mounting back plate 301; a primary sliding seat that slides and snaps onto the primary guide rail 302 is installed on the rear side of the transverse plate 306; one end of the reel set shaft 315 is horizontally fixed on the transverse plate 306; a primary drive rack 305 is horizontally installed on the front side of the mounting back plate 301; a primary drive motor 303 is installed on the transverse plate 306; a primary drive gear 304 is installed on the output shaft of the primary drive motor 303 and meshes with the primary drive rack 305; a secondary telescopic mechanism is installed on the transverse plate 306.
[0048] Furthermore, the secondary telescopic mechanism includes a secondary drive motor 307, a secondary gear rack pair and a transverse moving bracket 310; the secondary gear rack pair includes a secondary drive gear 308 and a secondary drive rack 309;
[0049] A secondary guide rail 311 is installed horizontally on the transverse plate 306; a secondary sliding seat that slides and snaps onto the secondary guide rail 311 is installed on the rear side of the transverse bracket 310; the secondary drive motor 307 is installed on the transverse plate 306; the secondary drive gear 308 is installed on the output shaft of the secondary drive motor 307; the secondary drive rack 309 is installed horizontally on the transverse bracket 310 and meshed with the secondary drive gear 308; and the toggle drive mechanism is installed on the transverse bracket 310.
[0050] Furthermore, the toggle drive mechanism includes a toggle drive motor 314, a toggle drive screw rod 312 and a toggle sliding seat 316;
[0051] A sliding guide groove is transversely arranged on the traverse bracket 310; a slider is provided on the toggle sliding seat 316, which is slidably buckled on the sliding guide groove; the toggle driving screw rod 312 is rotatably installed on the traverse bracket 310, and the toggle sliding seat 316 is threadedly screwed; the toggle driving motor 314 is installed on the traverse bracket 310, and is used to drive the toggle driving screw rod 312 to rotate; the rear edge of the shift fork 313 is fixed on the toggle sliding seat 316; an avoidance groove is arranged on the shift fork 313; and the reel set shaft 315 passes through the avoidance groove. The coordination between the reel set shaft 315 and the avoidance groove can ensure stable contact between the shift fork 313 and the end of the finished yarn roll 4.
[0052] In the winding machine provided by the utility model, the rotating drive motor 201, the lifting drive motor 208, the primary drive motor 303, the secondary drive motor 307 and the toggle drive motor 314 all adopt existing stepping motors; the radar ranging sensor 212 adopts the existing radar ranging sensor; the barcode scanner 109 adopts the existing barcode scanner; the busbar adopts the existing busbar, and the current collector adopts a current collector matched with the busbar.
[0053] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention defined in the appended claims.
Claims
1. A winding machine, characterized in that: The invention comprises an overhead crane (1), an overhead rail, a ground rail, a movable door (2) and a reel conveying mechanism (3); the overhead crane (1) travels on the overhead rail; the movable door (2) is mounted on the overhead crane (1), and the overhead crane drives the movable door (2) to move along the overhead rail; a bottom movable column (213) matched with the ground rail is mounted on the lower edge of the movable door (2); the reel conveying mechanism (3) is mounted on the movable door (2), and the movable door (2) adjusts the direction and height position of the reel conveying mechanism (3), and the reel conveying mechanism (3) transfers the finished yarn roll (4).
2. The winding machine according to claim 1, characterized in that: The overhead crane (1) comprises a top moving frame (101) and a top driving motor (102); two lower running wheels (106) running on the lower side of the overhead rail are rotatably mounted on the top moving frame (101); two upper running wheels (105) running on the upper side of the overhead rail are mounted on the top moving frame (101) via a top bracket (103), and the two upper running wheels (105) correspond to the positions of the two lower running wheels (106) respectively; the top driving motor (102) is used to drive one of the upper running wheels (105) to rotate; and a top guide unit for clamping the overhead rail is mounted on both the top moving frame (101) and the two top brackets (103).
3. The winding machine according to claim 1, characterized in that: The movable door (2) comprises a lifting drive mechanism, a rotating drive mechanism, a posture adjustment frame (204) and a control chamber (205); the control chamber (205) is mounted on the posture adjustment frame (204); a bottom movable column (213) is fixed to the bottom of the posture adjustment frame (204); the top of the posture adjustment frame (204) is rotationally mounted on the overhead travelling vehicle (1) via a turntable (202); the rotating drive mechanism is used to drive the turntable (202) and the overhead travelling vehicle (1) to rotate relative to each other; the reel conveying mechanism (3) is vertically slidably mounted on the posture adjustment frame (204); and the lifting drive mechanism is used to drive the reel conveying mechanism (3) to move vertically.
4. The winding machine according to claim 3, characterized in that: The lifting drive mechanism comprises a lifting drive motor (208) and two lifting drive blocks (207); the two lifting drive blocks (207) are fixed on the reel conveying mechanism (3); the lifting drive motor (208) synchronously drives the two lifting drive blocks (207) to lift and lower through two synchronous belt transmission pairs.
5. The winding machine according to claim 1, characterized in that: Radar distance measuring sensors (212) are installed on both the left and right sides of the bottom moving column (213).
6. The winding machine according to claim 1, characterized in that: The reel conveying mechanism (3) comprises a mounting back plate (301), a primary telescopic mechanism, a secondary telescopic mechanism, a shift fork (313), a toggle drive mechanism and a reel fitting shaft (315); the mounting back plate (301) is mounted on a vertical sliding mounting moving door (2); the primary telescopic mechanism is mounted on the mounting back plate (301); one end of the reel fitting shaft (315) is transversely fixed on the primary telescopic mechanism for fitting the finished yarn roll (4); the secondary telescopic mechanism is mounted on the primary telescopic mechanism, and the primary telescopic mechanism drives the secondary telescopic mechanism and the reel fitting shaft (315) to move transversely; the toggle drive mechanism is mounted on the secondary telescopic mechanism, and the secondary telescopic mechanism drives the toggle drive mechanism to move transversely; the shift fork (313) is mounted on the toggle drive mechanism, and the toggle drive mechanism drives the shift fork (313) to move transversely, thereby toggling the finished yarn roll (4) away from the reel fitting shaft (315).
7. The winding machine according to claim 6, characterized in that: The first-stage telescopic mechanism comprises a transverse moving plate (306), a first-stage driving motor (303) and a first-stage gear rack pair; The transverse moving plate (306) is installed on the mounting back plate (301) in a transverse sliding manner; one end of the reel set shaft (315) is transversely fixed on the transverse moving plate (306); a primary driving motor (303) is installed on the transverse moving plate (306) and drives the transverse moving plate (306) to move transversely through a primary gear rack pair; and a secondary telescopic mechanism is installed on the transverse moving plate (306).
8. The winding machine according to claim 6, characterized in that: The secondary telescopic mechanism comprises a secondary drive motor (307), a secondary gear rack pair and a transverse moving bracket (310); the transverse moving bracket (310) is installed on the primary telescopic mechanism in a transverse sliding manner; the secondary drive motor (307) is installed on the primary telescopic mechanism and drives the transverse moving bracket (310) to move transversely through the secondary gear rack pair; and the toggle drive mechanism is installed on the transverse moving bracket (310).
9. The winding machine according to claim 6, characterized in that: The toggle drive mechanism comprises a toggle drive motor (314), a toggle drive screw rod (312) and a toggle sliding seat (316); the toggle sliding seat (316) is installed on the secondary telescopic mechanism in a transverse sliding manner; the toggle drive screw rod (312) is installed on the secondary telescopic mechanism in a rotational manner and penetrates the toggle sliding seat (316) in a threaded manner; the toggle drive motor (314) is used for driving the toggle drive screw rod (312) to rotate; the shift fork (313) is fixed on the toggle sliding seat (316); an avoidance groove is provided on the shift fork (313); and the reel sleeve shaft (315) penetrates the avoidance groove.