Sliver drawing device and sliver drawing method applied to roving frames

Abstract

This invention relates to a sliver traction device and method for use on a roving frame. The sliver is placed in a clamping member within a sliver can, which then clamps it. A motor is started to move the clamping member to one side of the roving frame. When the clamping member reaches the roving frame, a rope opens the clamping member, allowing the sliver to fall out. Once all the slivers in the sliver cans have been pulled to one side of the roving frame, all the slivers are finally wound onto the roving frame. This method saves workers time running back and forth, improves the efficiency of can changing slivers, and reduces the labor intensity of workers.

Description

Technical Field

[0001] This invention belongs to the field of sliver conveying technology, specifically relating to a sliver traction device and sliver traction method applied to a roving frame. Background Technology

[0002] In the spinning process, the roving stage processes the refined sliver into rovings of different counts and twists for use in the subsequent spinning stage. In actual production, the refined sliver is wound into sliver cans, and a certain number of sliver cans are then arranged in an orderly fashion in the yarn feeding area of ​​the roving frame. The arrangement of the sliver cans is described in [reference needed]. Figure 1 Six transverse chain conveyors 11 are arranged side by side on one side of the roving frame 10. Several sliver cans 9 are placed on each chain conveyor 11. The sliver is then fed into the roving frame and drafted, and finally spun into roving. When all the sliver in the sliver cans 9 is used up, the empty cans need to be transported to the previous finishing process to be refilled, and then the full cans are transported back to the yarn supply area of ​​the roving frame to continue spinning. After replacing the sliver cans 9, it is necessary to manually pull all the slivers in the cans to one side of the roving frame 10, and then wind all the slivers onto the roving frame 10. There are aisles between the chain conveyor chains 11 for workers to walk through, which results in a greater distance between the outermost chain conveyor chains 11 and the roving frame 10. This requires workers to walk to pull the slivers to one side of the roving frame 10, which wastes time and makes the replacement of sliver cans 9 inefficient. In addition, the manual pulling of slivers is very labor-intensive, and fatigue increases the probability of errors when workers operate the roving frame. Summary of the Invention

[0003] The primary technical problem to be solved by this invention is to provide a sliver traction device for roving frames, thereby addressing the issues of low efficiency in changing sliver cans and worker fatigue caused by manual sliver traction.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: a sliver traction device applied to a roving frame, comprising a flatbed trolley, a drive box connected to the flatbed trolley, a sliding plate that can slide linearly connected to the drive box, a screw rotatably connected inside the drive box, the sliding plate being threadedly connected to the screw, a sliding groove parallel to the screw axis being formed on the top plate of the drive box, the sliding plate being slidably connected in the sliding groove, an electric motor connected to the flatbed trolley, the electric motor being threadedly connected to the screw, driving the screw to rotate, the screw driving the sliding plate to slide back and forth along the sliding groove; a telescopic rod extending along the screw axis is connected to the sliding plate, the rear end of the telescopic rod being connected to the sliding plate, and the sliding... The plate-driven telescopic rod extends or retracts. A clamping component for holding the cooked strip is connected to the front end of the telescopic rod. The clamping component includes a U-shaped plate with its opening facing downwards. The two side plates of the U-shaped plate are arranged along the axial direction of the telescopic rod. A sliding rod is slidably inserted into the side plate of the U-shaped plate facing the rear end of the telescopic rod. A pressure plate is connected to the end of the sliding rod inside the U-shaped plate. The pressure plate is directly opposite the inner wall of the side plate of the U-shaped plate. A limiting plate is connected to the end of the sliding rod outside the U-shaped plate. An elastic element for driving the pressure plate to press against the inner wall of the U-shaped plate towards the front end of the telescopic rod is connected to the side plate of the U-shaped plate facing the rear end of the telescopic rod. A rope is provided on the flatbed trolley. One end of the rope is connected to the limiting plate, and the other end is stored inside the flatbed trolley.

[0005] As a preferred embodiment, a first locking member is connected to the bottom surface of the drive box, and the middle part of the rope passes through the first locking member, which is used to lock the rope.

[0006] As a preferred embodiment, the elastic element is a tension spring, which is sleeved on the outside of the sliding rod. One end of the tension spring is connected to the limiting plate, and the other end is connected to the outer wall of the U-shaped plate.

[0007] As a preferred embodiment, an arc-shaped plate that bends forward toward the telescopic rod is connected to the lower end of the clamping plate.

[0008] As a preferred embodiment, the telescopic rod includes a sleeve, the rear end of which is fixedly connected to the sliding plate. A guide rod is axially slidably inserted into the sleeve, the front end of which extends out of the sleeve. A downwardly extending connecting rod is vertically connected to the front end of the guide rod, and the lower end of the connecting rod is connected to the clamping member.

[0009] As a preferred embodiment, a second locking element is connected to the front end of the sleeve, which is used to lock the guide rod.

[0010] As a preferred embodiment, a guide ring is connected to the drive box, and the front end of the sleeve is slidably inserted into the guide ring.

[0011] As a preferred embodiment, the first locking member includes a retaining ring connected to the outer bottom surface of the drive box. The retaining ring has a radially extending threaded through hole, and a clamping bolt is threaded into the threaded through hole.

[0012] As a preferred embodiment, the flatbed trolley is also connected to a holding box, which is located below the drive box and is used to hold ropes.

[0013] The further technical problem to be solved by the present invention is to provide a method for pulling sliver, thereby solving the technical problems of low efficiency in changing sliver cans and easy worker fatigue caused by manual pulling of sliver.

[0014] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a stalk traction method, which uses the above-mentioned stalk traction device and includes the following specific steps: a. Arrange the chain conveyor chains from the third row to the farthest row behind the roving frame in two rows as a group. Leave a passage between adjacent groups of chain conveyor chains for the sliver traction device to pass through. Do not leave a passage between the two rows of chain conveyor chains closest to the roving frame and the third row of chain conveyor chains. b. The sliver in the sliver cans on the third to the farthest chain conveyor is conveyed by the sliver traction device. The conveying sequence is from the sliver cans closest to the roving frame to the sliver cans furthest from the roving frame. First, the sliver traction device is pushed to one end of the first channel closest to the roving frame. c. Manually clamp the sliver end in the sliver can on the two rows of chain conveyor chains on the side of the first channel closest to the roving frame to the clamping plate and the inner wall of the U-shaped plate of the clamping part, so that the side of the clamping plate facing away from the sliding rod clamps the sliver end. d. Adjust the direction of the flatbed trolley and the position where the rope is locked by the first locking member, so that the front end of the telescopic rod faces the roving frame. Control the motor to drive the sliding plate to slide forward, which will drive the clamping member at the front end of the telescopic rod to move towards the roving frame until the clamping member delivers the sliver end to the vicinity of the roving frame. At this time, the rope is tightened and pulls the limit plate. As the telescopic rod continues to extend, the pressure plate releases its grip on the sliver end. Under its own weight, the sliver end falls downward from the clamping member and lands near the roving frame. e. Control the motor to reverse and retract the telescopic rod and clamping parts, and move the flatbed trolley along the first channel to the vicinity of the next cotton sliver can that needs to be transported; f. Repeat steps c to e until all the cooked sliver heads in the sliver cans on both rows of chain conveyors have been conveyed. g. Follow steps b to f to complete the conveying of the sliver heads in the cotton sliver cans on one side of each channel, and the entire sliver traction is completed.

[0015] The beneficial effects of this invention are as follows: The sliver traction device and sliver traction method applied to the roving frame described in this invention place the sliver in the sliver can into a clamping member, clamps the sliver, and then drives the clamping member to move to one side of the roving frame by a motor. When the clamping member moves to one side of the roving frame, the clamping member is opened by a rope, allowing the sliver to fall out. After all the slivers in the sliver cans have been pulled to one side of the roving frame, all the slivers are finally wound onto the roving frame. This saves the time that employees spend running back and forth, improves the efficiency of sliver can changing, and reduces the labor intensity of workers. Attached Figure Description

[0016] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 It is a diagram showing the distribution of conventional sliver cans and roving frames; Figure 2 This is a schematic diagram of the principle structure of the stalk traction device described in this invention; Figure 3 This is a sectional view of the drive box; Figure 4 This is a structural schematic diagram of the first locking component; Figure 5 This is a diagram showing the distribution of cotton sliver cans and roving frames using the sliver traction method described in this invention. Figures 1-5 The components are as follows: 1. Flatbed trolley; 2. Drive box; 2.1. Guide ring; 2.2. Screw; 2.3. Sliding groove; 2.4. Motor; 3. Sliding plate; 4. Telescopic rod; 4.1. Sleeve; 4.2. Guide rod; 4.3. Connecting rod; 4.4. Second locking element; 5. Clamping element; 5.1. U-shaped plate; 5.2. Sliding rod; 5.3. Pressing plate; 5.4. Limiting plate; 5.5. Elastic element; 5.6. Arc plate; 6. First locking element; 6.1. Fixing ring; 6.2. Pressing bolt; 7. Rope; 8. Holding box; 9. Cotton sliver can; 10. Roving frame; 11. Chain conveyor chain. Detailed Implementation

[0017] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Example 1:

[0018] like Figures 2-4The sliver traction device shown is applied to a roving frame and includes a flatbed trolley 1. A drive box 2 is connected to the flatbed trolley 1, and a linearly sliding plate 3 is connected to the drive box 2. A screw 2.2 is rotatably connected inside the drive box 2. The sliding plate 3 is threadedly connected to the screw 2.2. A sliding groove 2.3 parallel to the axial direction of the screw 2.2 is opened on the top plate of the drive box 2. The sliding plate 3 is slidably connected in the sliding groove 2.3. A motor 2.4 is also connected to the flatbed trolley 1. The motor 2.4 is driven by the screw 2.2 and drives the screw 2.2 to rotate. The screw 2.2 drives the sliding plate 3 to slide back and forth along the sliding groove 2.3.

[0019] A telescopic rod 4 extending along the screw axis is connected to the sliding plate 3. The rear end of the telescopic rod 4 is connected to the sliding plate 3. The sliding plate 3 drives the telescopic rod 4 to extend or retract. A clamping member 5 for clamping the cooked strip is connected to the front end of the telescopic rod 4.

[0020] The clamping component 5 includes a U-shaped plate 5.1 with its opening facing downwards. The two side plates of the U-shaped plate are arranged along the axial direction of the telescopic rod 4. A sliding rod 5.2 is slidably inserted into the side plate of the U-shaped plate 5.1 facing the rear end of the telescopic rod 4. One end of the sliding rod 5.2 located inside the U-shaped plate 5.1 is connected to a pressure plate 5.3. The pressure plate 5.3 is directly opposite to the inner wall of the side plate of the U-shaped plate 5.1. One end of the sliding rod 5.2 located outside the U-shaped plate 5.1 is connected to a limiting plate 5.4. An elastic element 5.5 is connected to the side plate of the U-shaped plate 5.1 facing the rear end of the telescopic rod 4 to drive the pressure plate 5.3 to press against the inner wall of the U-shaped plate 5.1 towards the front end of the telescopic rod 4.

[0021] A rope 7 is provided on the flatbed trolley 1. One end of the rope 7 is connected to the limiting plate 5.4, and the other end is stored inside the flatbed trolley 1.

[0022] In this embodiment, a first locking member 6 is connected to the bottom surface of the drive box 2, and the middle part of the rope 7 passes through the first locking member 6. The first locking member 6 is used to lock the rope 7. When the drive box 2 drives the telescopic rod 4 to move forward a certain distance, the rope 7 drives the clamping member 5 to open.

[0023] The worker can adjust the position of the first locking member 6 locked to the rope 7 as needed, so that when the clamping member 5 moves to the target position, the extension 7 can just open the clamping member 5. In this embodiment, the first locking member 6 includes a fixing ring 6.1, which is connected to the outer bottom surface of the drive box 2. A radially extending threaded through hole is opened on the fixing ring 6.1, and a clamping bolt 6.2 is threaded into the threaded through hole. This first locking member 6 has a simple structure and is easy to operate. In practical applications, other structures with locking functions can also be used as the first locking member 6.

[0024] In practical applications, workers can manually control the rope to open the clamp 5, but with the first locking element 6, the operation will be more convenient for workers.

[0025] In this embodiment, the elastic element 5.5 is preferably set as a tension spring, which is sleeved on the outside of the sliding rod 5.2. One end of the tension spring is connected to the limiting plate 5.4, and the other end is connected to the outer wall of the U-shaped plate 5.1. This can increase the stroke of the pressing plate 5.3 within the U-shaped plate 5.1, making it easier for the clamping element 5 to release the clamped strip end.

[0026] In practical applications, the elastic element 5.5 can also be set as a spring. When the elastic element 5.5 is a spring, it needs to be set on the sliding rod 5.2 inside the U-shaped plate 5.1.

[0027] This embodiment further connects an arc-shaped plate 5.6 that bends forward toward the telescopic rod to the lower end of the pressing plate 5.3. The arc-shaped plate 5.6 is opposite to the lower edge of the U-shaped plate 5.1. The arc-shaped plate 5.6 can form a certain gap between the pressing plate 5.3 and the U-shaped plate 5.1 to adjust the pressure of the sliver end being pressed, and avoid excessive pressure from damaging the sliver end. At the same time, the arc-shaped plate 5.6 closes the lower end of the gap formed between the pressing plate 5.3 and the U-shaped plate 5.1, allowing the sliver end to slide down and better press the sliver end in the cotton sliver can into the U-shaped plate 5.1.

[0028] In this embodiment, the telescopic rod 4 includes a sleeve 4.1, the rear end of which is fixedly connected to the sliding plate 3. A guide rod 4.2 is axially slidably inserted into the sleeve 4.1, the front end of which extends out of the sleeve 4.1. A downwardly extending connecting rod 4.3 is vertically connected to the front end of the guide rod 4.2, and the lower end of the connecting rod 4.3 is connected to the clamping member 5.

[0029] Workers can determine the telescopic length of the telescopic rod 4 based on the distance between the sliver can 9 and the roving frame 10, and can also adjust the overall length of the telescopic rod 4 through the guide rod 4.2.

[0030] In this embodiment, a second locking member 4.4 is connected to the front end of the sleeve 4.1. The second locking member 4.4 is used to lock the guide rod 4.2.

[0031] To improve the movement stability of the telescopic rod 4, this embodiment also connects a guide ring 2.1 to the drive box 2, and the front end of the sleeve 4.1 of the telescopic rod 4 is slidably inserted into the guide ring 2.1. The telescopic rod 4 can slide axially back and forth within the guide ring.

[0032] To facilitate the storage of the rope 7, this embodiment further connects a holding box 8 to the flatbed trolley 1. The holding box 8 is located below the drive box 2 and is used to hold the rope 7.

[0033] The working process of this embodiment is as follows: The user pushes the sliver traction device to one side of the sliver can 9 as needed, then clamps the sliver end in the sliver can 9 onto the clamping member 5, and then starts the motor 2.4. The motor drives the screw 2.2 to rotate, and the screw 2.2 drives the sliding plate 3 to slide forward on the drive box 2. The sliding plate 3 pushes the telescopic rod 4 to extend forward, and the telescopic rod 4 drives the clamping member 5 at the front end and the clamped sliver end to move towards the roving frame side. When the clamping member 5 moves to the target position on the roving frame side, the user can manually pull the rope 7 to open the clamping member 5, and the sliver end will naturally fall to the roving frame side.

[0034] Of course, the user can also lock the rope 7 to the first locking member 6 and adjust the position of the rope 7 so that when the clamping member 5 moves to the target position, the clamping member 5 is just pulled open by the rope 7.

[0035] After the user has finished feeding the end of the sliver, the control motor 2.4 reverses and retracts the telescopic rod. Then the above process is repeated to traction and feed the end of the sliver in other cotton sliver cans. Example 2:

[0036] Combination Figure 5 As shown, this embodiment is a method for traction of mature stalks, using the mature stalk traction device described in Embodiment 1, and includes the following specific steps: a. The chain conveyor chains 11 from the third row to the farthest row behind the roving frame 10 are arranged discretely in groups of two rows. A channel 12 is left between adjacent groups of chain conveyor chains 11 for the passage of the sliver traction device. No channel is left between the two rows of chain conveyor chains 11 closest to the roving frame 10 and the third row of chain conveyor chains 11. b. The sliver in the sliver can 9 on the chain conveyor chain 11 from the third row to the farthest row is conveyed by the sliver traction device. The conveying sequence is from the sliver can 9 closest to the roving frame 10 to the sliver can 9 far away from the roving frame 10. First, the sliver traction device is pushed to one end of the first channel 12 closest to the roving frame 10. c. Manually clamp the sliver end in the sliver can 9 on the two rows of chain conveyor chains 11 on the side of the first channel close to the roving frame 10 to the inner wall between the clamping plate 5.3 and the U-shaped plate 5.1 of the clamping member 5, so that the side of the clamping plate 5.3 facing away from the sliding rod 5.2 clamps the sliver end; d. Adjust the direction of the flatbed trolley 1 and the position where the rope 7 is locked by the first locking member 6, so that the front end of the telescopic rod 4 faces the roving frame 10. Control the motor 2.4 to drive the sliding plate 3 to slide forward, and drive the clamping member 5 at the front end of the telescopic rod 4 to move towards the roving frame 10 until the clamping member 5 delivers the sliver end to the vicinity of the roving frame 10. At this time, the rope 7 is tightened and pulls the limiting plate 5.4. As the telescopic rod 4 continues to extend, the pressing plate 5.3 releases the clamping of the sliver end. Under its own gravity, the sliver end falls downward from the clamping member 5 and falls to the vicinity of the roving frame 10. e. Control the motor 2.4 to reverse and retract the telescopic rod 4 and clamping piece 5, and move the flatbed cart 1 along the first channel 12 to the vicinity of the next cotton sliver can 9 that needs to be transported; f. Repeat steps c to e until all the sliver heads in the cotton sliver tubes 9 on the two rows of chain conveyor chains 11 have been conveyed. g. Follow steps b to f to sequentially transport the sliver heads in the cotton sliver cans 9 on one side of each channel 12 until the entire sliver traction is completed.

[0037] Multiple transverse chain conveyors 11 are arranged side-by-side on one side of the roving frame 10. Since the first two conveyor chains 11 are closer to the roving frame 10, the worker can easily pull the sliver on the sliver can 9 to one side of the roving frame 10 by simply reaching out. The sliver cans 9 on the four outer conveyor chains 11 need to be pulled using the same sliver pulling method. First, the extension length of the telescopic rod 4 and the position of the locking rope 7 of the first locking member 6 are determined according to the distance between the sliver can 9 and the roving frame 10. In this embodiment, different colored markings are applied to the corresponding positions of the rope 7. When the sliver on the sliver can 9 on the corresponding chain conveyor chain 11 is clamped and conveyed, the first locking member 6 is locked at the corresponding color position of the rope 7. When the sliver on the sliver can 9 on the chain conveyor chain 11 is conveyed to one side of the roving frame 10, the clamping member 5 can be opened, releasing the sliver and letting it fall to one side of the roving frame 10. Finally, all the slivers are wound onto the roving frame 10, saving the time of employees running back and forth, improving the efficiency of changing the sliver can 9, and reducing the labor intensity of employees.

[0038] The above embodiments are merely illustrative of the principles and effects of this invention, as well as some examples of its application, and are not intended to limit the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these modifications and improvements are all within the scope of protection of this invention.

Claims

1. A method for traction of stalks using a stalk traction device, characterized in that, The traction device for the cooked strip includes a flatbed trolley (1), a drive box (2) connected to the flatbed trolley (1), and a sliding plate (3) that can slide linearly connected to the drive box (2). A screw (2.2) is rotatably connected inside the drive box (2). The sliding plate (3) is threadedly connected to the screw (2.2). A sliding groove (2.3) parallel to the axial direction of the screw (2.2) is opened on the top plate of the drive box (2). The sliding plate (3) is slidably connected in the sliding groove (2.3). A motor (2.4) is also connected to the flatbed trolley (1). The motor (2.4) is driven by the screw (2.2) and drives the screw (2.2) to rotate. The screw (2.2) drives the sliding plate (3) to slide back and forth along the sliding groove (2.3). A telescopic rod (4) extending along the screw axis is connected to the sliding plate (3). The rear end of the telescopic rod (4) is connected to the sliding plate (3). The sliding plate (3) drives the telescopic rod (4) to extend or retract. A clamping member (5) for clamping the cooked strip is connected to the front end of the telescopic rod (4). The clamping component (5) includes a U-shaped plate (5.1) with its opening facing downwards. The two side plates of the U-shaped plate are arranged along the axial direction of the telescopic rod (4). A sliding rod (5.2) is slidably inserted into the side plate of the U-shaped plate (5.1) facing the rear end of the telescopic rod (4). A pressure plate (5.3) is connected to one end of the sliding rod (5.2) inside the U-shaped plate (5.1). The pressure plate (5.3) is directly opposite to the inner wall of the side plate of the U-shaped plate (5.1). A limiting plate (5.4) is connected to one end of the sliding rod (5.2) outside the U-shaped plate (5.1). An elastic element (5.5) is connected to the side plate of the U-shaped plate (5.1) facing the rear end of the telescopic rod (4) to drive the pressure plate (5.3) to press the inner wall of the U-shaped plate (5.1) towards the front end of the telescopic rod (4). A rope (7) is provided on the flatbed trolley (1). One end of the rope (7) is connected to the limiting plate (5.4), and the other end is stored inside the flatbed trolley (1). The bottom surface of the drive box (2) is connected to a first locking member (6), and the middle part of the rope (7) passes through the first locking member (6). The first locking member (6) is used to lock the rope (7). The method for traction of mature stalks includes the following specific steps: a. The chain conveyor chains (11) from the third row to the farthest row behind the roving frame (10) are arranged discretely in groups of two rows. A passage is left between adjacent groups of chain conveyor chains (11) for the sliver traction device to pass through. No passage is left between the two rows of chain conveyor chains (11) close to the roving frame (10) and the third row of chain conveyor chains (11). b. The sliver in the sliver can (9) on the third to the farthest chain conveyor chain (11) is conveyed by the sliver traction device. The conveying sequence is from the sliver can (9) closest to the roving frame (10) to the sliver can (9) far away from the roving frame (10). First, the sliver traction device is pushed to one end of the first channel closest to the roving frame (10). c. Manually clamp the sliver end in the sliver can (9) on the two rows of chain conveyor chains (11) on the side of the first channel close to the roving machine (10) between the pressure plate (5.3) and the inner wall of the U-shaped plate (5.1) of the clamping part (5), so that the side of the pressure plate (5.3) facing away from the sliding rod (5.2) clamps the sliver end; d. Adjust the direction of the flatbed trolley (1) and the position where the rope (7) is locked by the first locking piece (6), so that the front end of the telescopic rod (4) faces the roving frame (10), control the motor (2.4) to drive the sliding plate (3) to slide forward, and drive the clamping piece (5) at the front end of the telescopic rod (4) to move towards the roving frame (10) until the clamping piece (5) delivers the sliver end to the vicinity of the roving frame (10). At this time, the rope (7) is tightened and pulls the limiting plate (5.4). As the telescopic rod (4) continues to extend, the pressing plate (5.3) releases the clamping of the sliver end, and the sliver end falls down from the clamping piece (5) under its own gravity and falls to the vicinity of the roving frame (10). e. Control the motor (2.4) to reverse and retract the telescopic rod (4) and clamping piece (5), and move the flatbed cart (1) along the first channel to the vicinity of the next cotton sliver can (9) that needs to be transported; f. Repeat steps c to e until all the sliver heads in the cotton sliver tubes (9) on the two rows of chain conveyor chains (11) have been conveyed; g. Follow steps b to f to complete the conveying of the sliver head in the cotton sliver can (9) on one side of each channel, and the entire sliver traction is completed.

2. The method for traction of stalks according to claim 1, characterized in that: The elastic element (5.5) is a tension spring, which is sleeved on the outside of the sliding rod (5.2). One end of the tension spring is connected to the limiting plate (5.4), and the other end is connected to the outer wall of the U-shaped plate (5.1).

3. The method for traction of stalks according to claim 1, characterized in that: An arc-shaped plate (5.6) that bends forward toward the telescopic rod is connected to the lower end of the clamping plate (5.3).

4. The method for traction of stalks according to claim 1, characterized in that: The telescopic rod (4) includes a sleeve (4.1), the rear end of which is fixedly connected to the sliding plate (3), and a guide rod (4.2) is axially slidably inserted inside the sleeve (4.1). The front end of the guide rod (4.2) extends out of the sleeve (4.1), and a downwardly extending connecting rod (4.3) is vertically connected to the front end of the guide rod (4.2). The lower end of the connecting rod (4.3) is connected to the clamping member (5).

5. The method for traction of stalks according to claim 4, characterized in that: A second locking element (4.4) is connected to the front end of the sleeve (4.1), and the second locking element (4.4) is used to lock the guide rod (4.2).

6. The method for traction of stalks according to claim 4, characterized in that: A guide ring (2.1) is connected to the drive box (2), and the front end of the sleeve (4.1) is slidably inserted into the guide ring (2.1).

7. The method for traction of stalks according to claim 1, characterized in that: The first locking member (6) includes a retaining ring (6.1), which is connected to the outer bottom surface of the drive box (2). A radially extending threaded through hole is provided on the retaining ring (6.1), and a clamping bolt (6.2) is threadedly connected in the threaded through hole.

8. The method for traction of stalks according to claim 1, characterized in that: The flatbed trolley (1) is also connected to a holding box (8), which is located below the drive box (2). The holding box (8) is used to hold ropes (7).

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