Winding device with guide mechanism
By introducing a guiding mechanism and a locking mechanism into the winding device, the problems of uneven yarn winding and difficulty in disassembling the winding drum are solved, achieving efficient and uniform yarn winding and stable production.
Patent Information
- Application Number
- CN202423228766.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The existing winding device lacks a guiding mechanism, which makes it difficult for the yarn to be wound along the predetermined route during the winding process, resulting in yarn damage. Furthermore, the winding drum is difficult to disassemble, affecting the yarn handling and winding quality.
A winding device with a guiding mechanism is designed, including a guide wheel, a rotating shaft, a sliding frame, a rotating screw, and a stepper motor. By rotating the guide wheel and moving the sliding frame, the yarn is ensured to move smoothly along a predetermined path. The locking mechanism and the yarn pushing mechanism stabilize and fix the take-up drum and adjust the yarn distribution to avoid loose or tight areas.
It improves the uniformity and quality of yarn winding, enhances the flexibility and adaptability of the equipment, ensures the stability and production efficiency of the winding process, reduces downtime, and improves overall production efficiency.
Smart Images
Figure CN223575827U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of wrapping yarn production technology, specifically is winding device with guide mechanism. BACKGROUND
[0002] Cover yarn is a special kind of textile yarn, which is composed of two or more different fibers. One of the fibers (usually filament or staple fiber) is covered by another fiber (usually elastic fiber such as spandex). This structure makes the cover yarn have unique physical and chemical properties, which makes it have advantages in many application fields. Cover yarn combines the characteristics of different fibers to provide diversified functions and advantages for textiles, making it play an important role in modern textile industry.
[0003] Cover yarn winding is the process of winding cover yarn evenly on the winding drum to form a winding drum yarn. This process is crucial for the subsequent processing and application of cover yarn, and needs to control various parameters and conditions in the winding process accurately to ensure the quality of cover yarn winding and provide high-quality yarn for subsequent processing and application. At the same time, it also needs to maintain stable tension and winding speed matching the yarn supply speed to avoid tension fluctuation and uneven yarn winding.
[0004] The inventor found that the prior art has the following problems in the process of implementing the utility model: 1. The existing winding device lacks a guide mechanism, making it difficult for the yarn to be wound according to the predetermined route during winding, resulting in yarn damage; 2. The winding drum of the existing winding device is often difficult to disassemble, affecting the taking of the yarn, and the yarn is easy to scatter during winding, resulting in overly loose or tight areas, reducing the winding quality of the yarn. UTILITY MODEL CONTENT
[0005] The utility model discloses a winding device with guide mechanism to solve the winding device of existing lack of guide mechanism in the background art, make yarn difficult to follow the predetermined route in the winding process and cause yarn damage and the winding drum of the winding device of existing often difficult to open, thereby affect the taking of yarn, and yarn is easy to scatter in the winding process, thereby appear too loose or close area, reduce the winding quality problem of yarn. In order to realize the above object, the utility model provides the following technical scheme: winding device with guide mechanism, including the protective cover, the bottom of protective cover is equipped with the base, the top one side of base is equipped with unwinding mechanism, the top middle part of base is equipped with guide plate, the left and right two sides inner wall of guide plate is rotatably connected with guide mechanism, the top other side of base is equipped with support frame A, the left and right two sides inner wall of support frame A is rotatably connected with winding mechanism, the left and right two ends of winding mechanism are equipped with locking mechanism, the lateral surface of one side of support frame A is horizontally penetrated with yarn pushing mechanism, and the front lateral surface of protective cover is equipped with controller.
[0006] Further preferably, the unwinding mechanism is composed of an unwinding rotating rod, an unwinding drum and a support frame B, wherein the left and right ends of the unwinding rotating rod are rotatably connected to the left and right inner walls of the support frame B, and the unwinding drum is sleeved on the outer wall of the unwinding rotating rod.
[0007] Further preferably, the surface of the guide plate is provided with a sliding groove.
[0008] Further preferably, the guide mechanism is composed of a guide wheel, a rotating shaft, a sliding frame, a rotating screw and a stepping motor, wherein the guide wheel is sleeved on the outer wall of the rotating shaft, the upper and lower ends of the rotating shaft are rotatably connected to the upper and lower inner walls of the sliding frame, the rotating screw is screwed in the sliding frame, one end of the rotating screw is rotatably connected to one side of the sliding groove, the other end is inserted with the stepping motor, and the sliding frame is slidingly connected to the inner wall of the sliding groove.
[0009] Further preferably, the winding mechanism is composed of a winding rotating rod, a winding drum and a driving motor, wherein the left and right ends of the winding rotating rod are rotatably connected to the left and right inner walls of the support frame A, the winding drum is sleeved on the outer wall of the winding rotating rod, and one end of the winding rotating rod is inserted with the driving motor.
[0010] Further preferably, the locking mechanism is composed of a T-shaped upper clamping ring, a T-shaped lower clamping ring and a mounting screw plate, wherein the left and right outer walls of the T-shaped upper clamping ring and the T-shaped lower clamping ring are provided with the mounting screw plate, and the inner walls of the T-shaped upper clamping ring and the T-shaped lower clamping ring are tightly attached to the outer walls of the winding rotating rod and the winding drum.
[0011] Further preferably, the yarn pushing mechanism is composed of an electric telescopic rod, a push plate and a sensing touch rod, wherein the tail end of the electric telescopic rod is transversely penetrated through one side outer wall of the supporting frame A, the supporting frame A is arranged at the driving end of the electric telescopic rod, the sensing touch rod is arranged on one side outer wall of the push plate, and the inner wall of the push plate is slidingly connected to the outer wall of the winding drum.
[0012] Compared with the prior art, the present application has the following beneficial effects:
[0013] In the present application, the guide wheel can ensure smooth movement of the yarn along a predetermined path during winding, reduce yarn damage caused by sudden turning or excessive bending, and evenly release the yarn through rotation of the shaft, thereby avoiding uneven winding or excessive tension. The sliding frame can accurately control the position of the guide wheel by rotating the screw rod, thereby adjusting the winding position of the yarn on the winding drum and evenly guiding the yarn to cover the entire outer wall of the winding drum, ensuring uniform winding. The guide mechanism accurately controls the winding process of the yarn, improving the efficiency and quality of yarn winding, and allowing the winding operation to adapt to winding drums of different diameters and lengths, thereby increasing the flexibility and adaptability of the equipment.
[0014] In the present application, the locking mechanism can ensure stable fixation of the winding drum on the winding shaft during winding, preventing displacement or falling during high-speed rotation. The design of the locking mechanism allows the operator to quickly fix the winding drum on the winding shaft, ensuring the stability of the winding process and enhancing the safety of the operation. The locking mechanism can also be quickly disassembled after the winding operation is completed, improving production efficiency. Through real-time sensing of the sensing touch rod, the electric telescopic rod can be timely activated to push the push plate and fill the gap that occurs during yarn winding, ensuring the close arrangement of the yarn and thereby ensuring uniform distribution of the yarn on the outer wall of the winding drum, avoiding loose or overly tight areas, and improving the quality of yarn winding. Since the yarn pushing mechanism can respond to the distribution of the yarn in a timely manner, downtime caused by manual adjustment can be reduced, ensuring continuous operation of the production line and thereby improving overall production efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 is a front view structural schematic diagram of the present application;
[0016] Figure 2 is a winding-off mechanism structural schematic diagram of the present application;
[0017] Figure 3 is a guide mechanism structural schematic diagram of the present application;
[0018] Figure 4 is a winding mechanism structural schematic diagram of the present application;
[0019] Figure 5The utility model discloses a locking mechanism structure schematic drawing.
[0020] Figure 6 The utility model discloses a push yarn mechanism structure schematic drawing.
[0021] In the drawing: 1, protective cover, 2, base, 3, unwinding mechanism, 301, unwinding rotary lever, 302, unwinding drum, 303, support frame B, 4, guide plate, 401, sliding groove, 5, guide mechanism, 501, guide wheel, 502, rotating shaft, 503, sliding frame, 504, rotary screw, 505, step motor, 6, support frame A, 7, winding mechanism, 701, winding rotary lever, 702, winding drum, 703, drive motor, 8, locking mechanism, 801, T type upper clamp ring, 802, T type lower clamp ring, 803, mounting screw plate, 9, push yarn mechanism, 901, electric telescopic rod, 902, push plate, 903, inductive touch rod, 10, controller. DETAILED DESCRIPTION
[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative work belong to the scope of the utility model protection.
[0023] Please refer to Figures 1 to 6 The utility model provides a kind of technical scheme: the winding device with guide mechanism, including protective cover 1, the bottom of protective cover 1 is equipped with base 2, the top of base 2 one side is equipped with unwinding mechanism 3, the top of base 2 is equipped with guide plate 4 in middle part, the left and right two sides inner wall of guide plate 4 is rotatably connected with guide mechanism 5, the top of base 2 other side is equipped with support frame A 6, the left and right two sides inner wall of support frame A 6 is rotatably connected with winding mechanism 7, the left and right ends of winding mechanism 7 are equipped with locking mechanism 8, the left and right sides outer wall of support frame A 6 is transversely penetrated with push yarn mechanism 9, the front side outer wall of protective cover 1 is equipped with controller 10.
[0024] In the embodiment, as Figure 1 And Figure 2As shown, the unwinding mechanism 3 is composed of an unwinding rotating rod 301, an unwinding drum 302 and a support frame B 303, wherein the left and right ends of the unwinding rotating rod 301 are respectively rotatably connected to the left and right inner walls of the support frame B 303, and the unwinding drum 302 is sleeved on the outer wall of the unwinding rotating rod 301; it should be noted that the operator can first sleeve the wrapping yarn on the outer wall of the unwinding drum 302, and then pass the yarn end through the guide mechanism 5 and fix it on the outer wall of the winding drum 702, at this time, the driving motor 703 can be started to drive the winding drum 702 to rotate together, thereby driving the winding drum 702 to rotate together with the unwinding drum 302 and the unwinding rotating rod 301 adhering to the inner wall of the support frame B 303 to unwind, during which, by sleeving the wrapping yarn on the outer wall of the unwinding drum 302, the operator can easily install the yarn, and the cooperation of the unwinding rotating rod 301 and the unwinding drum 302 can ensure that the yarn is unwound from the unwinding drum 302 at a uniform speed and tension, avoiding the winding or breaking of the yarn caused by uneven unwinding, and the rotation of the unwinding rotating rod 301 can effectively disperse the tension on the yarn, reducing the influence of yarn tension fluctuation on the quality of the yarn.
[0025] In this embodiment, as shown in Figure 2 and Figure 3 , the surface of the guide plate 4 is provided with a sliding groove 401; it should be noted that after the operator passes one end of the yarn through the guide mechanism 5 and fixes it on the outer wall of the winding drum 702, at this time, the operator can start the driving motor 703 to drive the winding drum 702 and the unwinding drum 302 to rotate synchronously for winding operation, and during this period, as the yarn is gradually wound to cover the outer wall of the winding drum 702, the operator can simultaneously start the stepping motor 505 to drive the sliding frame 503 in the guide mechanism 5 to slide horizontally along the inner wall of the sliding groove 401, so that the yarn is orderly and smoothly wound to cover the entire drum wall of the winding drum 702, in actual application, the cooperation of the sliding groove 401 and the guide mechanism 5 can ensure that the winding of the yarn on the winding drum 702 is more uniform, avoiding the concentration or looseness of the yarn, thereby improving the winding quality, and the design of the sliding groove 401 also allows the guide mechanism 5 to control the horizontal movement of the sliding frame 503, thereby adjusting the winding position of the yarn on the winding drum 702 according to different yarn characteristics and winding requirements, improving the flexibility of operation.
[0026] In this embodiment, as shown in Figure 3As shown, the guide mechanism 5 is composed of guide wheels 501, rotating shafts 502, sliding frames 503, rotating screws 504 and stepping motors 505, wherein the guide wheels 501 are sleeved on the outer walls of the rotating shafts 502, the upper and lower ends of the rotating shafts 502 are respectively rotationally connected to the upper and lower inner walls of the sliding frames 503, the rotating screws 504 are screwed in the interiors of the sliding frames 503, one end of the rotating screw 504 is rotationally connected to one side of the sliding groove 401, the other end is inserted with the stepping motor 505, and the sliding frame 503 is slidingly connected to the inner wall of the sliding groove 401; it should be noted that the operator can pass the yarn end through the two guide wheels 501, and then fix the yarn on one end of the barrel wall of the winding drum 702, at the same time, the driving motor 703 can be started to drive the winding drum 702 and the unwinding drum 302 to rotate synchronously for winding operation, during which the two guide wheels 501 will rotate through the rotating shafts 502 and release the yarn, guide the yarn into the winding drum 702, and at the same time, during the gradual movement of the yarn covering the outer wall of the winding drum 702, the operator can start the stepping motor 505 to drive the rotating screw 504 inserted therewith to start rotating, so that the sliding frame 503 screwed on the outer wall of the rotating screw 504 and the guide wheels 501 arranged in the interior thereof move transversely along the inner wall of the sliding groove 401, thereby synchronously moving the yarn adhered between the two guide wheels 501, so that the yarn can gradually wind and cover the entire outer wall of the winding drum 702. In actual application, the guide wheels 501 can ensure smooth movement of the yarn along the predetermined path during winding, reduce damage to the yarn caused by sudden turning or excessive bending, and at the same time, the guide wheels 501 can uniformly release the yarn through the rotation driving of the rotating shafts 502, avoid uneven winding or excessive tension of the yarn, and the sliding frame 503 can accurately control the position of the guide wheels 501 through the rotating movement of the rotating screw 504, thereby adjusting the winding position of the yarn on the winding drum 702, and uniformly guiding the yarn to cover the entire outer wall of the winding drum 702, ensuring the uniformity of winding. Through the accurate control of the winding process of the yarn by the guide mechanism 5, the efficiency and quality of the yarn winding are improved, and the winding operation can adapt to winding drums 702 of different diameters and lengths, increasing the flexibility and adaptability of the equipment.
[0027] In this embodiment, as Figure 4As shown, the winding mechanism 7 is composed of a winding rotary rod 701, a winding drum 702 and a driving motor 703, wherein the left and right ends of the winding rotary rod 701 are respectively rotationally connected to the inner walls of the left and right sides of the support frame A6, the winding drum 702 is sleeved on the outer wall of the winding rotary rod 701, and one end of the winding rotary rod 701 is inserted with the driving motor 703; it should be noted that after the operator fixes the yarn end on one end of the outer wall of the winding drum 702, the driving motor 703 can be started to make the output end start to rotate and drive the winding rotary rod 701 inserted therewith to rotate, so that the winding drum 702 sleeved on the outer wall of the winding rotary rod 701 rotates synchronously, thereby realizing the winding operation of the yarn, and during this period, the rotation of the driving motor 703 directly drives the winding rotary rod 701 and the winding drum 702 to rotate synchronously, ensuring the consistency and stability of the yarn winding, thereby improving the winding quality, and through the control of the driving motor 703, the automatic operation of the yarn winding can be realized, the manual intervention is reduced, the operation efficiency is improved, and at the same time, the winding mechanism 7 can adjust the rotation speed of the winding rotary rod 701 and the winding drum 702 through the driving motor 703, thereby adapting to different types of yarn and different winding requirements.
[0028] In this embodiment, as shown in Figure 5As shown, the locking mechanism 8 is composed of a T-shaped upper clamping ring 801, a T-shaped lower clamping ring 802 and mounting screw plates 803, wherein the left and right outer walls of the T-shaped upper clamping ring 801 and the T-shaped lower clamping ring 802 are provided with mounting screw plates 803, and the inner walls of the T-shaped upper clamping ring 801 and the T-shaped lower clamping ring 802 are tightly attached to the outer walls of the winding rotary rod 701 and the winding drum 702. It should be noted that before using the winding mechanism 7, the operator can first wrap the winding drum 702 around the outer wall of the winding rotary rod 701, and attach the T-shaped upper clamping ring 801 and the T-shaped lower clamping ring 802 to the upper and lower outer walls of the winding rotary rod 701 and the winding drum 702 respectively, so that the mounting screw plates 803 provided on the left and right sides of the T-shaped upper clamping ring 801 and the T-shaped lower clamping ring 802 can be attached correspondingly. At this time, the fastening screws are screwed into the screw holes of the two mounting screw plates 803 that coincide with each other, and are tightened, thereby completing the assembly of the winding drum 702 and the winding rotary rod 701. When the yarn winding operation is completed, the operator can directly unscrew the fastening screws to release the locking and fixing of the T-shaped upper clamping ring 801 and the T-shaped lower clamping ring 802, thereby taking off the covering yarn wound on the outer wall of the winding drum 702, and then performing new winding operation. In actual application, the locking mechanism 8 can ensure that the winding drum 702 is stably fixed on the winding rotary rod 701 during the winding process, preventing it from shifting or falling off during high-speed rotation. The design of the locking mechanism 8 allows the operator to quickly fix the winding drum 702 on the winding rotary rod 701, ensuring the stability of the winding process and enhancing the operation safety. At the same time, after the winding operation is completed, it can also be quickly disassembled, improving the production efficiency, and facilitating the operator to take the yarn and replace and maintain the parts.
[0029] In this embodiment, as shown in Figure 6As shown, the yarn pushing mechanism 9 is composed of an electric telescopic rod 901, a pushing plate 902 and a sensing touch rod 903, wherein the tail end of the electric telescopic rod 901 transversely penetrates through one side outer wall of the support frame A6, the support frame A6 is arranged at the driving end of the electric telescopic rod 901, the sensing touch rod 903 is installed on one side outer wall of the pushing plate 902, and the inner wall of the pushing plate 902 is slidingly connected to the outer wall of the winding drum 702; it should be noted that when the driving motor 703 is started to drive the winding rotating rod 701 and the winding drum 702 to rotate and perform the winding operation, the yarn is easily distributed loosely on the outer wall of the winding drum 702 due to its soft characteristic, so the operator sets the yarn pushing mechanism 9, the sensing end of the sensing touch rod 903 arranged on one side outer wall of the pushing plate 902 can sense the winding position of the yarn in real time, and when the sensing touch rod 903 contacts the yarn, it will quickly transmit the sensing signal to the controller 10, and the electric telescopic rod 901 is started by the controller 10 to drive the pushing plate 902 connected thereto to slide transversely along the outer wall of the winding drum 702 and push the yarn to fill the gap position, and during this period, the electric telescopic rod 901 can be started in time to push the pushing plate 902 to fill the gap of the yarn during winding, so as to ensure the close arrangement of the yarn, thereby ensuring the uniform distribution of the yarn on the outer wall of the winding drum 702, avoiding the loose or too tight area, thereby improving the winding quality of the yarn, and since the yarn pushing mechanism 9 can respond to the distribution state of the yarn in time, the downtime caused by manual adjustment can be reduced, the continuous operation of the production line is ensured, and the overall production efficiency is improved.
[0030] The use method and advantages of the present application are as follows:
[0031] For example Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, first, the operator can first cover the yarn on the outer wall of the unwinding drum 302, then pass the yarn end through the two guide wheels 501, and then fix the yarn on one end of the drum wall of the winding drum 702. At the same time, the driving motor 703 can be started, and the output end starts to rotate and drives the winding rotating rod 701 inserted with it to rotate, so that the winding drum 702 sleeved on the outer wall of the winding rotating rod 701 rotates synchronously, thereby realizing the winding operation of the yarn. During the operation, the two guide wheels 501 rotate through the rotating shaft 502 and release the yarn, guide the yarn into the winding drum 702, and at the same time, the operator can start the stepping motor 505 to drive the rotating screw rod 504 inserted with it to start rotating, so that the sliding frame 503 and the guide wheel 501 arranged inside the sliding frame 503 are screwed on the outer wall of the rotating screw rod 504. The guide wheel 501 moves along the inner wall of the sliding groove 401, thereby synchronously moving the yarn adhered between the two guide wheels 501, so that the yarn can be gradually wound on the entire outer wall of the winding drum 702. At the same time, the push plate 902 sleeved on the outer wall of the winding drum 702 can sense the winding position of the yarn in real time through the induction touch rod 903 arranged on one side of the outer wall of the push plate 902. When the induction touch rod 903 contacts the yarn, it will quickly transmit the sensing signal to the controller 10, and drive the electric telescopic rod 901 through the controller 10 to drive the push plate 902 connected with it to slide horizontally along the outer wall of the winding drum 702 and push the yarn to fill the gap. After the winding operation is completed, the operator can directly unscrew the fastening screw in the mounting plate 803 to release the locking and fixing of the T-shaped upper clamp ring 801 and the T-shaped lower clamp ring 802, so as to take off the covering yarn wound on the outer wall of the winding drum 702.
[0032] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.
Claims
1. Winding device with guide means, comprising a protective cover (1), characterized in that: The bottom end of the protective cover (1) is provided with a base (2), one side of the top of the base (2) is provided with a unwinding mechanism (3), the middle of the top of the base (2) is provided with a guide plate (4), the left and right two side inner walls of the guide plate (4) are rotatably connected with guide mechanisms (5), the other side of the top of the base (2) is provided with a support frame A (6), the left and right two side inner walls of the support frame A (6) are rotatably connected with winding mechanisms (7), the left and right two ends of the winding mechanism (7) are provided with locking mechanisms (8), the outer wall of one side of the support frame A (6) is transversely penetrated by a yarn pushing mechanism (9), and the front outer wall of the protective cover (1) is provided with a controller (10).
2. The winding apparatus with a guide mechanism according to claim 1, characterized by: The unwinding mechanism (3) is composed of an unwinding rotating rod (301), an unwinding drum (302) and a support frame B (303), wherein the left and right two ends of the unwinding rotating rod (301) are rotatably connected to the left and right two side inner walls of the support frame B (303), and the unwinding drum (302) is sleeved on the outer wall of the unwinding rotating rod (301).
3. The take-up device with guide mechanism according to claim 1, characterized in that: The surface of the guide plate (4) is provided with a sliding groove (401).
4. The take-up device with guide mechanism according to claim 3, characterized in that: The guide mechanism (5) is composed of a guide wheel (501), a rotating shaft (502), a sliding frame (503), a rotating screw (504) and a stepping motor (505), wherein the guide wheel (501) is sleeved on the outer wall of the rotating shaft (502), the upper and lower two ends of the rotating shaft (502) are rotatably connected to the upper and lower two side inner walls of the sliding frame (503), the rotating screw (504) is screwed in the inside of the sliding frame (503), one end of the rotating screw (504) is rotatably connected to one side of the sliding groove (401), the other end is inserted with the stepping motor (505), and the sliding frame (503) is slidingly connected to the inner wall of the sliding groove (401).
5. The take-up device with guide mechanism according to claim 1, characterized in that: The winding mechanism (7) is composed of a winding rotating rod (701), a winding drum (702) and a driving motor (703), wherein the left and right two ends of the winding rotating rod (701) are rotatably connected to the left and right two side inner walls of the support frame A (6), the winding drum (702) is sleeved on the outer wall of the winding rotating rod (701), and one end of the winding rotating rod (701) is inserted with the driving motor (703).
6. The take-up device with guide mechanism according to claim 5, characterized in that: The locking mechanism (8) is composed of a T-shaped upper clamping ring (801), a T-shaped lower clamping ring (802) and a mounting screw plate (803), wherein the left and right two side outer walls of the T-shaped upper clamping ring (801) and the T-shaped lower clamping ring (802) are provided with the mounting screw plate (803), and the inner walls of the T-shaped upper clamping ring (801) and the T-shaped lower clamping ring (802) are tightly attached to the outer walls of the winding rotating rod (701) and the winding drum (702).
7. The take-up device with guide mechanism according to claim 5, characterized in that: The yarn pushing mechanism (9) is composed of an electric telescopic rod (901), a push plate (902) and a sensing touch rod (903), wherein the tail end of the electric telescopic rod (901) transversely penetrates one side outer wall of the support frame A (6), the support frame A (6) is arranged at the driving end of the electric telescopic rod (901), the sensing touch rod (903) is mounted on one side outer wall of the push plate (902), and the inner wall of the push plate (902) is slidingly connected to the outer wall of the winding drum (702).