Packaging area yarn stacking trolley wheel limiting and anti-collision device

Abstract

The present application relates to the technical field of bale stacking vehicles, and discloses a bale stacking vehicle wheel limiting anti-collision device for a packaging area, which comprises a bottom plate, a box body arranged on the top side of the bottom plate, and a shell body fixed on the bottom side of the bottom plate, the bottom side of the bottom plate and the shell body are each provided with a plurality of rollers, and a lifting mechanism, which comprises a movable frame movably sleeved on the outside of the box body, a plurality of mounting holes formed at both ends of the movable frame, and a supporting column movably arranged in the mounting hole, the bottom end of the supporting column penetrates through the bottom plate and is fixed with a cushion block, and the outer wall of the supporting column is also provided with a thread, and the two ends of the mounting hole are provided with nuts which are threadedly connected to the outer wall of the adjacent supporting column and abut against the movable frame to limit the position of the supporting column. The lifting mechanism can support the bale stacking vehicle, has high stability, can adjust the height of the bale stacking vehicle when it is parked, and can adaptively adjust the supporting assembly according to the height difference of the parking position, so the application range is wide.

Description

Technical Field

[0001] This invention relates to the field of yarn stacking cart technology, and more specifically to a wheel limiting and anti-collision device for yarn stacking carts in the packaging area. Background Technology

[0002] In the spinning process, stacking carts are needed to temporarily store and transfer materials in the packaging area.

[0003] Most existing yarn stacking carts are equipped with rollers at the bottom, which move the cart around. However, when the cart is parked near a wall, if there is a slight incline in the ground, or if workers accidentally bump into the cart while storing or retrieving yarn, the rollers at the bottom of the cart often rotate, causing the cart to move and directly impact the wall or the outer railing. This impact not only damages the wall, railing, and the cart itself, increasing maintenance costs, but may also cause the yarn rolls stacked on the cart to fall out, resulting in material damage.

[0004] To address this, we proposed a wheel limit and anti-collision device for yarn stacking carts in the packaging area. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a wheel limit and anti-collision device for yarn stacking carts in the packaging area.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a wheel limiting and anti-collision device for a yarn stacking cart in the packaging area, comprising a base plate, a box body set on the top side of the base plate, and a housing fixed on the bottom side of the base plate. Both the base plate and the housing are provided with multiple rollers on their bottom sides. A lifting mechanism includes a movable frame movably fitted outside the box body, multiple mounting holes at both ends of the movable frame, and a support column movably inserted inside the mounting holes. The bottom end of the support column extends to the bottom of the base plate and is fixed with a pad. The outer wall of the support column is also threaded. Nuts are threaded at both ends of the mounting holes, engaging with the outer walls of adjacent support columns and abutting against the movable frame to limit the position of the support columns. Screws for adjusting the position of the movable frame are threaded through both sides of the movable frame. An anti-collision mechanism is also provided on the movable frame. Through the operation of the above components, the yarn stacking cart can be supported, and the height of the yarn stacking cart when stationary can be adjusted.

[0007] Furthermore, the anti-collision mechanism includes mounting slots on both sides of one end of the movable frame, a mounting block movably inserted into the mounting slot, a receiving slot on the end of the mounting block away from the movable frame, a connecting rod slidably inserted into the opening of the receiving slot, and a rubber sheet fixed to the end of the connecting rod away from the mounting block. Connecting shafts, with their tail ends rotatably connected to the inner wall of the mounting slot, are fixed on both sides of the end of the mounting block located inside the mounting slot to drive the mounting block to rotate. A limiting block, sliding inside the receiving slot, is fixed to the end of the connecting rod to restrict the position of the connecting rod. A spring, with its tail end fixed to the inner wall of the receiving slot, is fixed to the side of the limiting block away from the connecting rod. Through the operation of the above components, the yarn stacking machine can be protected, the mounting block, limiting block, connecting rod, and rubber sheet can be folded, and the position of the anti-collision mechanism can be adjusted.

[0008] Furthermore, a loading groove is provided between the two mounting blocks at the end of the movable frame. A guide rod is fixed inside the loading groove. Positioning blocks that slide inside the loading groove are movably sleeved on both ends of the guide rod. The mounting block located outside the mounting groove has a positioning groove. The end of the positioning block located outside the loading groove is slidably inserted into the adjacent positioning groove. A spring is fixed between the two positioning blocks and movably sleeved on the outside of the guide rod for pushing the positioning blocks to move. Through the operation of the above components, the position of the mounting blocks can be fixed.

[0009] Furthermore, the top of the roller located below the base plate is fixed with a fixing block fixed to the bottom side of the base plate, and the roller located on the bottom side of the shell is fixed to the bottom side of the shell. The bottom sides of the roller located below the base plate and the bottom sides of the roller located on the bottom side of the shell are at the same horizontal height. Through the rollers at the same horizontal height, all rollers can touch the ground and roll smoothly when the yarn stacking car moves.

[0010] Furthermore, the other end of the movable frame is provided with a handrail fixed to the top side of the base plate for pushing the base plate. The handrail makes it convenient for the user to push the yarn stacking cart.

[0011] Furthermore, the base plate has multiple through holes one corresponding to the support columns, and the support columns slide through adjacent through holes one. The shell has through holes two corresponding to adjacent support columns, and the support columns slide through adjacent through holes two. Through holes one, the base plate can be prevented from interfering with the vertical displacement of the support columns, and through holes two, the shell can be prevented from interfering with the vertical displacement of the support columns.

[0012] Furthermore, threaded screws for vertical displacement of the movable frame are threaded through both sides of the movable frame. The top end of the screw is rotatably connected to a mounting plate fixed to the top side of the base plate, and the bottom end of the screw penetrates into the interior of the housing and is rotatably connected to the inner wall of the bottom side of the housing. A drive shaft with its top end rotatably connected to the armrest is rotatably connected to the inner wall of the bottom side of the housing. A transmission wheel one is fixedly sleeved on the outer wall of the screw and the outer wall of the drive shaft on one side of the movable frame. A transmission belt one that drives the transmission wheel one is provided on the outside of the transmission wheel one. A transmission wheel two is fixedly sleeved on the outer wall of the screw and the outer wall of the drive shaft on the other side of the movable frame. A transmission belt two that drives the transmission wheel two is provided on the outside of the transmission wheel two. The transmission wheel one, transmission belt one, transmission wheel two, and transmission belt two are all located inside the housing. Rotating the drive shaft, through the cooperation of transmission wheel one and transmission belt one, and through the cooperation of transmission wheel two and transmission belt two, can drive the screw to rotate. Through the threaded cooperation between the screw and the movable frame, the movable frame can be displaced.

[0013] Furthermore, the base plate has multiple connecting holes 1 corresponding to the lead screw, and the lead screw rotates through the adjacent connecting holes 1. The base plate also has connecting holes 2 corresponding to the drive shaft, and the drive shaft rotates through the connecting holes 2. Through the connecting holes 1, the base plate can be prevented from interfering with the rotation of the lead screw, and through the connecting holes 2, the base plate can be prevented from interfering with the rotation of the drive shaft.

[0014] Furthermore, a rotating sleeve is fixedly sleeved on the outer wall of the drive shaft located above the base plate to rotate the drive shaft. By rotating the rotating sleeve, the drive shaft can be driven to rotate.

[0015] Furthermore, sliding grooves are provided on both sides of the box body, and the top of the mounting plate is slidably inserted into the adjacent sliding groove. The sliding cooperation between the sliding groove and the mounting plate can improve the stability of the box body.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention, by setting up a supporting mechanism, can support the yarn stacking cart, preventing the cart from shifting and hitting the wall or the guardrail outside the wall when there is a slight slope on the ground or when workers accidentally bump into the cart during yarn storage and retrieval. It has high stability and can adjust the height of the yarn stacking cart when parked. Furthermore, the support components can be adaptively adjusted according to the height difference of the parking position, so that the yarn stacking cart can be parked at parking locations with different heights within a certain range, and its application range is wide.

[0017] 2. This invention, by setting up an anti-collision mechanism, can protect the yarn stacking cart, preventing the end of the yarn stacking cart from directly colliding with obstacles and causing damage to the yarn stacking cart. It has high protective performance, and the anti-collision components of the anti-collision mechanism can be folded according to usage requirements to prevent the anti-collision mechanism from interfering with the parking operation of the yarn stacking cart. It is convenient to use, and the position of the anti-collision mechanism can be adjusted according to the transportation environment, resulting in high working performance. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 A schematic diagram of a wheel limit and anti-collision device for a yarn stacking cart in the packaging area; Figure 2 A schematic diagram showing the deflection state of the mounting block in the wheel limit and anti-collision device of the yarn stacking cart in the packaging area; Figure 3 A schematic diagram of the housing of the wheel limiting and anti-collision device for the yarn stacking cart in the packaging area; Figure 4 A cross-sectional view of the movable frame in the wheel limiting and anti-collision device of the yarn stacking cart in the packaging area; Figure 5 A cross-sectional view of the housing of the wheel limiting and anti-collision device for the yarn stacking cart in the packaging area; Figure 6 for Figure 4 Enlarged structural diagram at point A; Figure 7 for Figure 3 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Base plate; 2. Box body; 3. Shell; 4. Roller; 5. Movable frame; 6. Support column; 7. Pad block; 8. Nut; 9. Lead screw; 10. Drive shaft; 11. Mounting groove; 12. Mounting block; 13. Connecting shaft; 14. Receiving groove; 15. Limiting block; 16. Spring 1; 17. Connecting rod; 18. Rubber sheet; 19. Loading groove; 20. Positioning block; 21. Guide rod; 22. Spring 2; 23. Handrail; 24. Mounting plate; 25. Sliding groove; 26. Fixed block; 27. Actuating sleeve. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Combination Figure 1 and Figure 3 The packaging area yarn stacking cart wheel limiting and anti-collision device of this embodiment includes a base plate 1, a box 2 set on the top side of the base plate 1, and a housing 3 fixed on the bottom side of the base plate 1. The bottom sides of the base plate 1 and the housing 3 are provided with multiple rollers 4. The lifting mechanism includes a movable frame 5 movably sleeved on the outside of the box 2, multiple mounting holes opened at both ends of the movable frame 5, and a support column 6 movably passing through the mounting holes. The bottom end of the support column 6 passes through to the bottom of the base plate 1 and is fixed with a pad 7. The outer wall of the support column 6 is also provided with threads. The two ends of the mounting holes are provided with nuts 8 that are threaded onto the outer wall of the adjacent support column 6 and abut against the movable frame 5 to limit the position of the support column 6. The two sides of the movable frame 5 are threaded with screw rods 9 for adjusting the position of the movable frame 5. The movable frame 5 is also provided with an anti-collision mechanism.

[0022] The implementation principle of the anti-collision device for the yarn stacking cart wheel limiter in this embodiment is as follows: When the yarn stacking cart needs to transport materials, the materials can be placed inside the box 2 on the top side of the base plate 1. Then, the rotation of the roller 4 drives the base plate 1 to move, which in turn drives the box 2 and the materials inside the box 2 to move, allowing the materials to be transported. When the yarn stacking cart moves to the packaging station and needs to be limited and fixed, the rotation of the screw 9, through the threaded engagement between the screw 9 and the movable frame 5, drives the movable frame 5 to move, which in turn drives the support column 6 to move vertically, and drives the pad 7 to move vertically. When the pad 7 comes into contact with the ground and lifts the roller 4 off the ground, the yarn stacking cart is supported on the ground, preventing the cart from displacing and colliding with the wall or the guardrail outside the wall when there is a slight slope on the ground or when workers accidentally bump into the yarn stacking cart during the storage and retrieval of yarn. When there is a height difference in the location where the yarn stacking cart is parked, it leads to... When some pads 7 cannot contact the ground, the corresponding nut 8 can be rotated. Through the threaded engagement between the nut 8 and the support column 6, the nut 8 is moved. When the nut 8 separates from the movable frame 5, the corresponding support column 6 can be pulled, causing the support column 6 and pad 7 to move vertically, so that the corresponding pad 7 comes into contact with the ground, thereby supporting the yarn stacking cart and improving its stability. When it is necessary to release the limit, the screw 9 is rotated. Through the threaded engagement between the screw 9 and the movable frame 5, the movable frame 5 is moved, causing the support column 6 to move vertically, and the pad 7 to move vertically. When the pad 7 is off the ground and the roller 4 touches the ground, the yarn stacking cart resumes its moving state. When it is necessary to remove the box 2 from the yarn stacking cart, the box 2 can be pulled. Through the sliding engagement between the box 2 and the movable frame 5, the box 2 is moved vertically. When the box 2 is removed from the interior of the movable frame 5, the box 2 is removed from the yarn stacking cart.

[0023] Example 2: Combination Figure 2 and Figure 4This embodiment, based on Embodiment 1, further improves upon the following: the anti-collision mechanism includes mounting grooves 11 on both sides of one end of the movable frame 5, mounting blocks 12 movably inserted into the mounting grooves 11, a receiving groove 14 on the end of the mounting block 12 away from the movable frame 5, a connecting rod 17 slidably inserted into the groove of the receiving groove 14, and a rubber sheet 18 fixed to the end of the connecting rod 17 away from the mounting block 12. Connecting shafts 13, whose tail ends are rotatably connected to the inner wall of the mounting groove 11, are fixed to both sides of the end of the mounting block 12 located inside the mounting groove 11 for driving the mounting block 12 to rotate. A limiting block 15, which slides inside the receiving groove 14 to limit the position of the connecting rod 17, is fixed to the end of the connecting rod 17 located inside the receiving groove 14. A limiting block 15, whose tail end is fixed to the receiving groove 14, is fixed to the side of the limiting block 15 away from the connecting rod 17. The spring 16 on the inner wall of the end of the groove 14 is used to absorb the collision energy and buffer the impact when the end of the yarn stacking cart collides with an obstacle during the driving or operation of the yarn stacking cart. The rubber sheet 18 first contacts the obstacle, and the connecting rod 17 pushes the limiting block 15 to compress the spring 16. The spring 16 absorbs the collision energy and plays a buffering role, preventing the end of the yarn stacking cart from directly colliding with the obstacle and causing damage to the yarn stacking cart. It has high protective performance. When the yarn stacking cart is parked and the anti-collision mechanism is not needed, the mounting block 12 can be moved. Through the rotation of the connecting shaft 13, the mounting block 12 and the mounting groove 11 can be rotated to drive the mounting block 12 to deflect. At this time, the mounting block 12, the limiting block 15, the connecting rod 17 and the rubber sheet 18 can be folded to prevent the anti-collision mechanism from interfering with the parking operation of the yarn stacking cart.

[0024] When the user needs to adjust the position of the anti-collision mechanism while using the yarn stacking cart to transport materials, the nut 8 can be rotated. Through the threaded engagement between the nut 8 and the support column 6, the nut 8 will be moved. When the nut 8 is separated from the movable frame 5, the movable frame 5 can be moved by rotating the lead screw 9. Through the threaded engagement between the lead screw 9 and the movable frame 5, the movable frame 5 will be moved. At this time, the anti-collision mechanism can be moved by the movable frame 5. Since the nut 8 is separated from the movable frame 5, the movable frame 5 will not move the support column 6 when it moves. Therefore, the pad 7 on the bottom side of the support column 6 will not interfere with the rotation of the roller 4.

[0025] Example 3: Combination Figure 6This embodiment is further improved on the basis of embodiment 2 as follows: a loading groove 19 is provided between the two mounting blocks 12 at the end of the movable frame 5. A guide rod 21 is fixed inside the loading groove 19. Positioning blocks 20 that slide inside the loading groove 19 are movably sleeved on both ends of the guide rod 21. The mounting block 12 located outside the mounting groove 11 has a positioning groove. The end of the positioning block 20 located outside the loading groove 19 is slidably inserted into the adjacent positioning groove. A spring 22 that is movably sleeved on the outside of the guide rod 21 between the two positioning blocks 20 is used to push the positioning block 20 to move. The position of the mounting block 12 can be fixed by the cooperation of the positioning block 20 and the positioning groove. When the mounting block 12 needs to be folded and stored, the positioning block 20 can be pulled to move the positioning block 20. When the positioning block 20 is disengaged from the positioning groove, the mounting block 12 can be turned. Through the rotational cooperation of the connecting shaft 13 and the rotational cooperation of the mounting block 12 and the mounting groove 11, the mounting block 12 is deflected.

[0026] The top of the roller 4 located below the base plate 1 is fixed with a fixing block 26 fixed to the bottom side of the base plate 1. The roller 4 located on the bottom side of the housing 3 is fixed to the bottom side of the housing 3. The bottom side of the roller 4 located below the base plate 1 and the bottom side of the roller 4 located on the bottom side of the housing 3 are at the same horizontal height. By using the rollers 4 at the same horizontal height, all rollers can touch the ground and roll smoothly when the yarn stacking car moves.

[0027] The other end of the movable frame 5 is provided with a handle 23 fixed to the top side of the base plate 1 for pushing the base plate 1. The handle 23 makes it convenient for the user to push the yarn stacking cart.

[0028] The base plate 1 has multiple through holes corresponding to the support columns 6. The support columns 6 slide through the adjacent through holes 1. The shell 3 has through holes corresponding to the adjacent support columns 6. The support columns 6 slide through the adjacent through holes 2. Through the through holes 1, the base plate 1 can be prevented from interfering with the vertical displacement of the support columns 6. Through the through holes 2, the shell 3 can be prevented from interfering with the vertical displacement of the support columns 6.

[0029] Example 4: Combination Figure 5This embodiment, based on embodiment 2, further improves upon the following: The movable frame 5 is threaded with lead screws 9 on both sides for vertical displacement. The lead screws 9 are self-locking. The top end of the lead screw 9 is rotatably connected to a mounting plate 24 fixed to the top side of the base plate 1. The bottom end of the lead screw 9 penetrates into the interior of the housing 3 and is rotatably connected to the inner wall of the bottom side of the housing 3. A drive shaft 10, whose top end is rotatably connected to the handle 23, is rotatably connected to the inner wall of the bottom side of the housing 3. A transmission wheel is fixedly sleeved on the outer wall of the lead screw 9 and the outer wall of the drive shaft 10 on one side of the movable frame 5. The outer side of the first transmission wheel is equipped with a first transmission belt that drives the first transmission wheel. The outer wall of the lead screw 9 and the outer wall of the drive shaft 10 on the other side of the movable frame 5 are both fixedly sleeved with a second transmission wheel. The outer side of the second transmission wheel is equipped with a second transmission belt that drives the second transmission wheel. The first transmission wheel, the first transmission belt, the second transmission wheel and the second transmission belt are all located inside the housing 3. When the drive shaft 10 is rotated, the lead screw 9 can be rotated through the cooperation of the first transmission wheel and the first transmission belt, and through the cooperation of the second transmission wheel and the second transmission belt. The movable frame 5 can be moved through the threaded cooperation between the lead screw 9 and the movable frame 5.

[0030] The base plate 1 has multiple connecting holes 1 corresponding to the lead screw 9. The lead screw 9 rotates through the adjacent connecting holes 1. The base plate 1 also has connecting holes 2 corresponding to the drive shaft 10. The drive shaft 10 rotates through the connecting holes 2. The connecting holes 1 and 2 can prevent the base plate 1 from interfering with the rotation of the lead screw 9.

[0031] Example 5: Combination Figure 7 The further improvement of this embodiment based on embodiment 4 is that: a rotating sleeve 27 for rotating the drive shaft 10 is fixedly sleeved on the outer wall of the drive shaft 10 located above the base plate 1. By rotating the rotating sleeve 27, the drive shaft 10 can be rotated.

[0032] The box 2 has sliding grooves 25 on both sides, and the top of the mounting plate 24 is slidably inserted into the adjacent sliding groove 25. The sliding cooperation between the sliding groove 25 and the mounting plate 24 can improve the stability of the box 2.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A wheel limiting and anti-collision device for a yarn stacking cart in a packaging area, comprising a base plate (1), a box (2) disposed on the top side of the base plate (1), and a housing (3) fixed to the bottom side of the base plate (1), wherein the bottom sides of the base plate (1) and the housing (3) are provided with multiple rollers (4), characterized in that: The lifting mechanism includes a movable frame (5) movably fitted outside the box (2), multiple mounting holes opened at both ends of the movable frame (5), and a support column (6) movably inserted inside the mounting holes. The bottom end of the support column (6) extends to the bottom of the base plate (1) and is fixed with a pad (7). The outer wall of the support column (6) is also threaded. The two ends of the mounting holes are provided with nuts (8) threadedly fitted onto the outer wall of the adjacent support column (6) and abutting against the movable frame (5) to limit the position of the support column (6). The two sides of the movable frame (5) are threadedly fitted with screw rods (9) for adjusting the position of the movable frame (5). The active frame (5) is also equipped with an anti-collision mechanism.

2. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 1, characterized in that: The anti-collision mechanism includes mounting slots (11) on both sides of one end of the movable frame (5), mounting blocks (12) movably inserted into the mounting slots (11), receiving slots (14) on the side of the mounting blocks (12) away from the movable frame (5), connecting rods (17) slidably inserted into the slot of the receiving slots (14), and rubber sheets (18) fixed on the side of the connecting rods (17) away from the mounting blocks (12). Connecting shafts (13) with their tail ends rotatably connected to the inner wall of the mounting slots (11) are fixed on both sides of the end of the mounting blocks (12) located inside the mounting slots (11) for driving the mounting blocks (12) to rotate. A limiting block (15) that slides inside the receiving slots (14) is fixed on the end of the connecting rods (17) for limiting the position of the connecting rods (17). A spring (16) with its tail end fixed to the inner wall of the end of the receiving slots (14) is fixed on the side of the limiting block (15) away from the connecting rods (17).

3. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 2, characterized in that: A loading groove (19) is provided between the two mounting blocks (12) at the end of the movable frame (5). A guide rod (21) is fixed inside the loading groove (19). Positioning blocks (20) that slide inside the loading groove (19) are movably sleeved on both ends of the guide rod (21). The mounting block (12) located outside the mounting groove (11) is provided with a positioning groove. The end of the positioning block (20) located outside the loading groove (19) is slidably inserted into the adjacent positioning groove. A spring (22) that is movably sleeved on the outside of the guide rod (21) is fixed between the two positioning blocks (20) for pushing the positioning block (20) to move.

4. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 1, characterized in that: The top of the roller (4) located below the base plate (1) is fixed with a fixing block (26) fixed to the bottom side of the base plate (1). The roller (4) located on the bottom side of the shell (3) is fixed to the bottom side of the shell (3). The bottom side of the roller (4) located below the base plate (1) and the bottom side of the roller (4) located on the bottom side of the shell (3) are at the same horizontal height.

5. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 1, characterized in that: The other end of the movable frame (5) is provided with a handrail (23) fixed to the top side of the base plate (1) for pushing the base plate (1).

6. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 1, characterized in that: The base plate (1) has multiple through holes corresponding to the support column (6), and the support column (6) slides through the adjacent through hole one. The shell (3) has through holes corresponding to the adjacent support column (6), and the support column (6) slides through the adjacent through hole two.

7. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 5, characterized in that: The movable frame (5) is threaded on both sides with screw rods (9) for driving the movable frame (5) to make vertical displacement. The top of the screw rod (9) is rotatably connected to the mounting plate (24) fixed on the top side of the base plate (1). The bottom end of the screw rod (9) penetrates into the interior of the housing (3) and is rotatably connected to the inner wall of the bottom side of the housing (3). The inner wall of the bottom side of the housing (3) is rotatably connected to the drive shaft (10) whose top end is rotatably connected to the handrail (23). The outer wall of the screw rod (9) and the outer wall of the drive shaft (10) on one side of the movable frame (5) are both fixedly sleeved with a first transmission wheel. The outer side of the first transmission wheel is provided with a first transmission belt that drives the first transmission wheel. The outer wall of the screw rod (9) and the outer wall of the drive shaft (10) on the other side of the movable frame (5) are both fixedly sleeved with a second transmission wheel. The outer side of the second transmission wheel is provided with a second transmission belt that drives the second transmission wheel. The first transmission wheel, the first transmission belt, the second transmission wheel and the second transmission belt are all located inside the housing (3).

8. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 7, characterized in that: The base plate (1) has multiple connecting holes one corresponding to the lead screw (9). The lead screw (9) rotates through the adjacent connecting holes one. The base plate (1) also has connecting holes two corresponding to the drive shaft (10). The drive shaft (10) rotates through the connecting holes two.

9. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 7, characterized in that: A rotating sleeve (27) for rotating the drive shaft (10) is fixedly sleeved on the outer wall of the drive shaft (10) located above the base plate (1).

10. The packaging area yarn stacking cart wheel limiting and anti-collision device as described in claim 7, characterized in that: The box (2) has sliding grooves (25) on both sides, and the top of the mounting plate (24) is slidably inserted into the adjacent sliding groove (25).

Images