Breaking and take-up device for alpaca wool superfine wool siro spinning

Abstract

The utility model relates to the technical field of spinning equipment, and discloses an alpaca wool superfine wool siro spinning breaking take-up device which comprises an equipment bottom plate, a support is fixedly connected to the upper surface of the equipment bottom plate, and a butt joint rotating shaft, an electromagnet, a butt joint plate and a fixing seat are rotationally connected into the support. The alpaca hair superfine wool thread collecting device is reasonable in structure, the hook face of the hook-and-loop fastener adheres to alpaca hair superfine wool threads, the collecting motor rotates the collecting plate to enable the collecting plate to rotate, the driving motor rotates the driving base to enable the collecting plate to be attracted by the electromagnet, and the fixing hydraulic device enables the auxiliary base to move in parallel till the auxiliary motor is connected with the butt joint rotating shaft. A butt joint rotating shaft is rotated through an auxiliary motor, alpaca wool superfine wool threads are collected, the alpaca wool superfine wool threads penetrate through the position between an upper protection roller and a lower protection roller, and when the broken alpaca wool superfine wool threads are collected, a hydraulic device is driven to enable a protection base to move downwards, so that the broken alpaca wool superfine wool threads are collected. The upper protection roller is in contact with the alpaca wool superfine wool threads.

Description

Technical Field

[0001] The utility model relates to the technical field of spinning equipment, in particular to an alpaca superfine wool siro spinning interrupting and taking-up device. Background Art

[0002] Siro spinning is a spinning method that spins yarns similar to ply yarns on traditional ring spinning machines. Two rovings with a certain distance between them are fed into the spinning machine. After being drafted, the two single yarn whiskers are output by the front roller. Due to the transfer of twist, the single yarn whiskers have a small amount of twist. After being spliced, they are further twisted into yarns similar to ply yarns and wound on the bobbin. Siro spinning is also called twist spinning, and is called A and B yarns in China. The most common problem of Siro spinning is the problem of broken ends, because Siro spinning is a process of twisting two alpaca superfine wools together. Therefore, when one alpaca superfine wool breaks, the other alpaca superfine wool will continue to work. The alpaca superfine wool produced by this is obviously unable to meet the quality requirements. Therefore, a single yarn interrupting device is needed to cut off the other alpaca superfine wool when the alpaca superfine wool breaks, or to suspend the operation of the Siro spinning equipment.

[0003] The sirospinning interrupting device disclosed in the Chinese utility model patent application disclosure CN220685361U, although the device has the effect of conveniently adjusting the size between the rotating disks and adapting to different sizes of spinning threads by the coordinated arrangement of the connecting base, the bidirectional screw, the control disk and the limit slide rod, but the existing device does not solve the problem that when one alpaca superfine wool thread is broken, the other alpaca superfine wool thread will continue to work, resulting in the finished product failing to meet the production requirements, the alpaca superfine wool thread breaks during the processing process, or the alpaca superfine wool thread is entangled in other devices due to the front end still supplying the alpaca superfine wool thread after the device breaks it, causing the alpaca superfine wool thread to be damaged, and the alpaca superfine wool thread's forward route is offset, causing the alpaca superfine wool thread to swing around. Therefore, we propose a new device to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides an alpaca ultra-fine wool siro spinning interrupting and winding device, which solves the problem that the alpaca ultra-fine wool yarn may break during processing and easily cause the alpaca ultra-fine wool yarn to fall into other devices and damage them.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model is realized through the following technical solutions: an alpaca wool and superfine wool siro spinning breaking and winding device, including an equipment bottom plate, on the upper surface of which a bracket is fixedly connected. Inside the bracket, a docking rotating shaft is rotatably connected. On the surface of the docking rotating shaft, an electromagnet is fixedly connected. On one side of the bracket, a docking plate is fixedly connected. On the upper surface of the docking plate, a spring telescopic rod is fixedly connected. On the upper surface of the docking plate, a fixed seat is fixedly connected. Inside the fixed seat, a clamping seat is rotatably connected. On the upper surface of the docking plate, a collision sensor is fixedly connected. On one side of the bracket, a fixed hydraulic device is fixedly connected. On one side of the fixed hydraulic device, an auxiliary seat is fixedly connected. Inside the auxiliary seat, an auxiliary motor is fixedly connected. Inside the bracket, a moving motor is fixedly connected. One end of the moving motor is inserted with a moving lead screw. The surface of the moving lead screw is threadedly penetrated by a moving seat. Inside the moving seat, a driving motor is fixedly connected. One end of the driving motor is inserted with a driving seat. Inside the driving seat, a collecting motor is fixedly connected. One end of the collecting motor is inserted with a collecting plate. On the upper surface of the collecting plate, a hook surface of a magic tape is fixedly connected.

[0008] Optionally, the collision sensor is located below the clamping seat, and the collision sensor is adapted to the clamping seat.

[0009] Optionally, a hole is provided on one side of the auxiliary seat, and the auxiliary seat is rotatably connected to the docking rotating shaft through the hole.

[0010] Optionally, a connecting chute is provided on one side of the bracket, and the bracket is slidably connected to the moving seat through the connecting chute.

[0011] Optionally, the collecting plate is made of iron, and the collecting plate is adapted to the electromagnet.

[0012] Optionally, a moving hole is provided on one side of the moving seat, and the moving seat is rotatably connected to the driving seat through the moving hole.

[0013] Optionally, a support frame is fixedly connected to the upper surface of the equipment bottom plate. On the upper surface of the support frame, a docking hydraulic device is fixedly connected. On the lower surface of the docking hydraulic device, a cutting knife is fixedly connected, and the cutting knife is located inside the support frame.

[0014] Optionally, a docking frame is fixedly connected to the upper surface of the equipment bottom plate. Inside the docking frame, a lower protection roller is rotatably connected. On the upper surface of the docking frame, a driving hydraulic device is fixedly connected. On the lower surface of the driving hydraulic device, a protection seat is fixedly connected. Inside the protection seat, an upper protection roller is rotatably connected. A docking groove is provided inside the docking frame, and the docking frame is slidably connected to the protection seat through the docking groove.

[0015] In summary, the technical effects and advantages of the present utility model are as follows:

[0016] 1. The structure of the present utility model is reasonable. The alpaca cashmere superfine wool yarn passes under the docking rotating shaft and then penetrates through the card seat, causing the spring telescopic rod to press down. Then, by docking another such device with another alpaca cashmere superfine wool yarn, when the alpaca cashmere superfine wool yarn in the other device breaks during processing, due to the loosening of the alpaca cashmere superfine wool yarn caused by the break, the spring telescopic rod releases elastic force, causing the card seat to rotate, and one end of the card seat hits the collision sensor. Through the docking hydraulic device, the cutting knife moves downward to cut the alpaca cashmere superfine wool yarn, solving the problem that when one alpaca cashmere superfine wool yarn breaks, the other alpaca cashmere superfine wool yarn will continue to operate, resulting in the finished product not meeting the production requirements. It achieves the effect that two such devices can be respectively docked with two different alpaca cashmere superfine wool yarns. When the alpaca cashmere superfine wool yarn in the first device breaks, the second device is triggered to cut the second alpaca cashmere superfine wool yarn, greatly enhancing the yield of the alpaca cashmere superfine wool yarn after production.

[0017] 2. In the present utility model, the alpaca cashmere superfine wool yarn is adhered by the hook surface of the magic tape. The collecting motor rotates the collecting plate to make the collecting plate rotate counterclockwise by 90 degrees. Then, the driving motor rotates the driving seat to make the collecting plate be magnetically attracted by the electromagnet. After magnetic attraction, the moving motor rotates the moving lead screw to make the moving seat move parallel until the collecting motor is separated from the collecting plate, so that the collecting plate and the electromagnet clamp and fix the alpaca cashmere superfine wool yarn. Then, through the fixed hydraulic device, the auxiliary seat moves parallel until the auxiliary motor is connected to the docking rotating shaft. By rotating the docking rotating shaft through the auxiliary motor, the alpaca cashmere superfine wool yarn can be collected, solving the problem that during the processing of the alpaca cashmere superfine wool yarn, it breaks or after being broken by this device, due to the front end still supplying the alpaca cashmere superfine wool yarn, the alpaca cashmere superfine wool yarn winds into other devices and causes damage to other devices. It achieves the effect of being able to collect the alpaca cashmere superfine wool yarn after it breaks, greatly reducing the situation of other devices being damaged due to the break of the alpaca cashmere superfine wool yarn. By passing the alpaca cashmere superfine wool yarn through between the upper protection roller and the lower protection roller, when collecting the broken alpaca cashmere superfine wool yarn, the protection seat moves downward through the driving hydraulic device until the lower part of the upper protection roller contacts the alpaca cashmere superfine wool yarn, solving the problem that the advancing route of the alpaca cashmere superfine wool yarn deviates, resulting in the alpaca cashmere superfine wool yarn swaying around. It achieves the effect of being able to limit the alpaca cashmere superfine wool yarn so that its advancing route does not deviate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2Explosion schematic diagram of the bracket structure of the present utility model;

[0020] Figure 3 Explosion schematic diagram of the collecting plate structure of the present utility model;

[0021] Figure 4 Explosion schematic diagram of the support frame structure of the present utility model;

[0022] Figure 5 Explosion schematic diagram of the protection seat structure of the present utility model.

[0023] In the figure: 1, equipment bottom plate; 2, bracket; 3, docking rotating shaft; 4, electromagnet; 5, docking plate; 6, spring telescopic rod; 7, fixed seat; 8, card seat; 9, collision sensor; 10, fixed hydraulic device; 11, auxiliary seat; 12, auxiliary motor; 13, moving motor; 14, moving lead screw; 15, moving seat; 16, driving motor; 17, driving seat; 18, collecting motor; 19, collecting plate; 20, magic tape hook surface; 21, support frame; 22, docking hydraulic device; 23, cutter; 24, docking frame; 25, lower protection roller; 26, driving hydraulic device; 27, protection seat; 28, upper protection roller. Specific implementation manners

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment: Refer to Figures 1-5The shown alpaca cashmere superfine wool siro spinning breaking and winding device includes an equipment bottom plate 1. The upper surface of the equipment bottom plate 1 is fixedly connected with a bracket 2. The inside of the bracket 2 is rotatably connected with a docking rotating shaft 3. The surface of the docking rotating shaft 3 is fixedly connected with an electromagnet 4. One side of the bracket 2 is fixedly connected with a docking plate 5. The upper surface of the docking plate 5 is fixedly connected with a spring telescopic rod 6. The upper surface of the docking plate 5 is fixedly connected with a fixed seat 7. The inside of the fixed seat 7 is rotatably connected with a clamping seat 8. The upper surface of the docking plate 5 is fixedly connected with a collision sensor 9. One side of the bracket 2 is fixedly connected with a fixed hydraulic device 10. One side of the fixed hydraulic device 10 is fixedly connected with an auxiliary seat 11. The inside of the auxiliary seat 11 is fixedly connected with an auxiliary motor 12. The inside of the bracket 2 is fixedly connected with a moving motor 13. One end of the moving motor 13 is inserted with a moving lead screw 14. The surface of the moving lead screw 14 is threadedly penetrated by a moving seat 15. The inside of the moving seat 15 is fixedly connected with a driving motor 16. One end of the driving motor 16 is inserted with a driving seat 17. The inside of the driving seat 17 is fixedly connected with a collecting motor 18. One end of the collecting motor 18 is inserted with a collecting plate 19. The upper surface of the collecting plate 19 is fixedly connected with a magic tape hook surface 20.

[0026] As a preferred implementation manner in this embodiment, such as Figures 1-4As shown in the figure, a bracket 2 is fixedly connected to the upper surface of the equipment base plate 1. A docking rotating shaft 3 is rotatably connected inside the bracket 2. An electromagnet 4 is fixedly connected to the surface of the docking rotating shaft 3. A docking plate 5 is fixedly connected to one side of the bracket 2. A spring telescopic rod 6 is fixedly connected to the upper surface of the docking plate 5. A fixed seat 7 is fixedly connected to the upper surface of the docking plate 5. A clamping seat 8 is rotatably connected inside the fixed seat 7. A collision sensor 9 is fixedly connected to the upper surface of the docking plate 5. The collision sensor 9 is located below the clamping seat 8. The collision sensor 9 is adapted to the clamping seat 8. A fixed hydraulic device 10 is fixedly connected to one side of the bracket 2. An auxiliary seat 11 is fixedly connected to one side of the fixed hydraulic device 10. A hole is opened on one side of the auxiliary seat 11. The auxiliary seat 11 is rotatably connected to the docking rotating shaft 3 through the hole. An auxiliary motor 12 is fixedly connected inside the auxiliary seat 11. A moving motor 13 is fixedly connected inside the bracket 2. A moving lead screw 14 is inserted into one end of the moving motor 13. A moving seat 15 is threadedly penetrated by the surface of the moving lead screw 14. A connecting chute is opened on one side of the bracket 2. The bracket 2 is slidably connected to the moving seat 15 through the connecting chute. A driving motor 16 is fixedly connected inside the moving seat 15. A driving seat 17 is inserted into one end of the driving motor 16. A moving hole is opened on one side of the moving seat 15. The moving seat 15 is rotatably connected to the driving seat 17 through the moving hole. A collecting motor 18 is fixedly connected inside the driving seat 17. A collecting plate 19 is inserted into one end of the collecting motor 18. The collecting plate 19 is made of iron. The collecting plate 19 is adapted to the electromagnet 4. A magic hook surface 20 is fixedly connected to the upper surface of the collecting plate 19. A support frame 21 is fixedly connected to the upper surface of the equipment base plate 1. A docking hydraulic device 22 is fixedly connected to the upper surface of the support frame 21. A cutting knife 23 is fixedly connected to the lower surface of the docking hydraulic device 22. The cutting knife 23 is located inside the support frame 21. During use, the alpaca cashmere superfine wool thread is passed under the docking rotating shaft 3 and then passed through the clamping seat 8, so that the spring telescopic rod 6 is pressed down. Then, another device of the present invention is docked with another alpaca cashmere superfine wool thread. When the alpaca cashmere superfine wool thread of the other device breaks during the processing, due to the loosening of the alpaca cashmere superfine wool thread caused by the breakage, the spring telescopic rod 6 releases the elastic force, causing the clamping seat 8 to rotate, so that one end of the clamping seat 8 hits the collision sensor 9. The cutting knife 23 is moved downward through the docking hydraulic device 22 to cut the alpaca cashmere superfine wool thread, solving the problem that when one alpaca cashmere superfine wool thread breaks, the other alpaca cashmere superfine wool thread will continue to operate, resulting in the finished product not meeting the production requirements. The effect is achieved that two devices of the present invention can be respectively docked with two different alpaca cashmere superfine wool threads. When the alpaca cashmere superfine wool thread of the first device breaks, the second device is triggered to cut the second alpaca cashmere superfine wool thread, greatly enhancing the yield rate of the alpaca cashmere superfine wool thread after production. The alpaca cashmere superfine wool thread broken during processing or cut by the present device falls on the upper surface of the collecting plate 19.Adhere 20 pairs of alpaca cashmere superfine wool yarns through the hook surface of the magic tape. Rotate the collecting plate 19 by the collecting motor 18 to make the collecting plate 19 rotate counterclockwise by 90 degrees. Then rotate the driving seat 17 by the driving motor 16 to make the collecting plate 19 be magnetically attracted by the electromagnet 4. After magnetic attraction, rotate the moving lead screw 14 by the moving motor 13 to make the moving seat 15 move parallel until the collecting motor 18 is separated from the collecting plate 19, so that the collecting plate 19 and the electromagnet 4 clamp and fix the alpaca cashmere superfine wool yarns. Then make the auxiliary seat 11 move parallel by the fixed hydraulic device 10 until the auxiliary motor 12 is connected to the docking rotating shaft 3. Rotate the docking rotating shaft 3 by the auxiliary motor 12 to collect the alpaca cashmere superfine wool yarns, solving the problems that the alpaca cashmere superfine wool yarns break during the processing or due to the breakage caused by this device, and the front end still supplies the alpaca cashmere superfine wool yarns, resulting in the alpaca cashmere superfine wool yarns being wound into other devices and damaging other devices. It achieves the effect of being able to collect the alpaca cashmere superfine wool yarns after breakage, greatly reducing the situation where other devices are damaged due to the breakage of the alpaca cashmere superfine wool yarns.,

[0027] As Figure 5 shown, in this embodiment, a docking frame 24 is fixedly connected to the upper surface of the equipment base plate 1. A lower protection roller 25 is rotatably connected inside the docking frame 24. A driving hydraulic device 26 is fixedly connected to the upper surface of the docking frame 24. A protection seat 27 is fixedly connected to the lower surface of the driving hydraulic device 26. An upper protection roller 28 is rotatably connected inside the protection seat 27. A docking groove is opened inside the docking frame 24. The docking frame 24 is slidably connected to the protection seat 27 through the docking groove. During use, pass the alpaca cashmere superfine wool yarns through between the upper protection roller 28 and the lower protection roller 25. When collecting the broken alpaca cashmere superfine wool yarns, make the protection seat 27 move downward by the driving hydraulic device 26 until the lower part of the upper protection roller 28 contacts the alpaca cashmere superfine wool yarns, solving the problem that the advancing route of the alpaca cashmere superfine wool yarns deviates, resulting in the alpaca cashmere superfine wool yarns swaying randomly. It achieves the effect of being able to limit the alpaca cashmere superfine wool yarns so that their advancing route will not deviate.,

[0028] The working principle of this utility model:

[0029] During use, the alpaca cashmere superfine wool thread passes under the docking rotating shaft 3, then penetrates the clamping seat 8, pressing down the spring telescopic rod 6. Then, by docking another such device with another alpaca cashmere superfine wool thread, when the alpaca cashmere superfine wool thread in the other device breaks during processing, due to the loosening of the alpaca cashmere superfine wool thread caused by the break, the spring telescopic rod 6 releases its elastic force, causing the clamping seat 8 to rotate, and one end of the clamping seat 8 hits the collision sensor 9. Through the docking hydraulic device 22, the cutting knife 23 moves downward to cut the alpaca cashmere superfine wool thread, solving the problem that when one alpaca cashmere superfine wool thread breaks, the other alpaca cashmere superfine wool thread will continue to operate, resulting in the finished product not meeting the production requirements. It achieves the effect that two such devices can be respectively docked with two different alpaca cashmere superfine wool threads. When the alpaca cashmere superfine wool thread in the first device breaks, the second device is triggered to cut the second alpaca cashmere superfine wool thread, greatly enhancing the yield rate of the alpaca cashmere superfine wool thread after production. The alpaca cashmere superfine wool thread broken during processing or cut by this device falls on the upper surface of the collection plate 19. The alpaca cashmere superfine wool thread is adhered by the hook surface of the magic tape 20. The collection motor 18 rotates the collection plate 19 to make the collection plate 19 rotate counterclockwise by 90 degrees. Then, the driving motor 16 rotates the driving seat 17, making the collection plate 19 attracted by the electromagnet 4. After being attracted, the moving motor 13 rotates the moving lead screw 14, making the moving seat 15 move parallel until the collection motor 18 is separated from the collection plate 19, so that the collection plate 19 and the electromagnet 4 clamp and fix the alpaca cashmere superfine wool thread. Then, the fixed hydraulic device 10 makes the auxiliary seat 11 move parallel until the auxiliary motor 12 is connected to the docking rotating shaft 3. By rotating the docking rotating shaft 3 through the auxiliary motor 12, the alpaca cashmere superfine wool thread can be collected, solving the problem that during the processing of the alpaca cashmere superfine wool thread, when it breaks or is broken by this device, due to the front end still supplying the alpaca cashmere superfine wool thread, the alpaca cashmere superfine wool thread winds into other devices and causes damage to other devices. It achieves the effect of being able to collect the alpaca cashmere superfine wool thread after it breaks, greatly reducing the situation where other devices are damaged due to the break of the alpaca cashmere superfine wool thread. By passing the alpaca cashmere superfine wool thread through between the upper protection roller 28 and the lower protection roller 25, when collecting the broken alpaca cashmere superfine wool thread, the driving hydraulic device 26 makes the protection seat 27 move downward until the lower part of the upper protection roller 28 contacts the alpaca cashmere superfine wool thread, solving the problem that the advancing route of the alpaca cashmere superfine wool thread deviates, resulting in the alpaca cashmere superfine wool thread swaying randomly. It achieves the effect of being able to limit the alpaca cashmere superfine wool thread so that its advancing route will not deviate.

[0030] The electrical components mentioned in this article are all electrically connected to the external main controller and 220V mains power supply, and the main controller can be a conventional known device such as a computer for control.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An alpaca superfine wool siro spinning interruption and take-up device, comprising a device bottom plate (1), characterized in that: The upper surface of the equipment bottom plate (1) is fixedly connected to a bracket (2), the bracket (2) is internally rotatably connected to a docking shaft (3), the surface of the docking shaft (3) is fixedly connected to an electromagnet (4), one side of the bracket (2) is fixedly connected to a docking plate (5), the upper surface of the docking plate (5) is fixedly connected to a spring telescopic rod (6), the upper surface of the docking plate (5) is fixedly connected to a fixing seat (7), the interior of the fixing seat (7) is rotatably connected to a clamping seat (8), the upper surface of the docking plate (5) is fixedly connected to a collision sensor (9), one side of the bracket (2) is fixedly connected to a fixed hydraulic device (10), and one side of the fixed hydraulic device (10) is fixedly connected to An auxiliary seat (11), wherein an auxiliary motor (12) is fixedly connected inside the auxiliary seat (11), a moving motor (13) is fixedly connected inside the bracket (2), a moving lead screw (14) is plugged into one end of the moving motor (13), a moving seat (15) is threadedly penetrated through the surface of the moving lead screw (14), a driving motor (16) is fixedly connected inside the moving seat (15), a driving seat (17) is plugged into one end of the driving motor (16), a collecting motor (18) is fixedly connected inside the driving seat (17), a collecting plate (19) is plugged into one end of the collecting motor (18), and a Velcro hook surface (20) is fixedly connected to the upper surface of the collecting plate (19).

2. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: The collision sensor (9) is located at the bottom of the card seat (8), and the collision sensor (9) and the card seat (8) are adapted to each other.

3. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: A hole is provided on one side of the auxiliary seat (11), and the auxiliary seat (11) is rotatably connected to the docking shaft (3) via the hole.

4. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: A connecting slide groove is provided on one side of the bracket (2), and the bracket (2) is slidably connected to the movable seat (15) via the connecting slide groove.

5. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: The material of the collecting plate (19) is iron, and the collecting plate (19) and the electromagnet (4) are adapted to each other.

6. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: A moving hole is provided on one side of the moving seat (15), and the moving seat (15) is rotatably connected to the driving seat (17) via the moving hole.

7. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: The upper surface of the equipment bottom plate (1) is fixedly connected to a support frame (21), the upper surface of the support frame (21) is fixedly connected to a docking hydraulic device (22), the lower surface of the docking hydraulic device (22) is fixedly connected to a cutter (23), and the cutter (23) is located inside the support frame (21).

8. The alpaca superfine wool siro spinning interruption and take-up device according to claim 1, characterized in that: A docking frame (24) is fixedly connected to the upper surface of the equipment bottom plate (1), a lower protective roller (25) is rotatably connected to the interior of the docking frame (24), a driving hydraulic device (26) is fixedly connected to the upper surface of the docking frame (24), a protective seat (27) is fixedly connected to the lower surface of the driving hydraulic device (26), an upper protective roller (28) is rotatably connected to the interior of the protective seat (27), a docking groove is provided inside the docking frame (24), and the docking frame (24) is slidably connected to the protective seat (27) via the docking groove.

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