Foot clamping prevention device for automatic doffing

By designing an automatic anti-pinching device for falling cylinders, the automatic winding and unloading of the textile cylinders is achieved by using motors and electric push rods, and the protective plate is automatically erected through the design of torsion springs and limit blocks, solving the safety hazards for operators during the unloading process of textile equipment and improving production efficiency and safety.

CN222860846UActive Publication Date: 2025-05-13TONGKUN GRP ZHEJIANG HENGTENG DIFFERENTIATION FIBER
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Patent Information

Application Number
CN202421523087.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-05-13
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

The lack of effective protective measures in the unloading process of existing textile equipment, which causes textile tubes to cause damage to operators when they fall, increasing the risk at work.

Method used

An automatic anti-pinching device for falling off the cylinder is designed to automatically wind the textile cylinder by driving the spline shaft to rotate by the motor, and the connecting rod is driven to shrink by the electric push rod, and the spline shaft automatically leaves the spline groove, releasing the limit of the textile cylinder. At the same time, the design of torsion spring and limit blocks is used to make the protective plate automatically erect when the textile cylinder falls, protecting the safety of the operator.

Benefits of technology

Improve production efficiency, reduce manual intervention, optimize operational processes, reduce operational complexity and time, and improve operational convenience and efficiency. At the same time, through the design of the automatic protective plate, the operation safety is significantly improved, complex electronic control and sensor systems are avoided, the failure rate is reduced, and the stability and reliability of the system are improved.

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Abstract

The utility model provides an anti-pinch device for automatic doffing, which relates to the technical field of anti-pinch devices and comprises a bottom plate, two groups of mounting plates are fixedly mounted on the top surface of the bottom plate, a motor is fixedly mounted on the side surface of one group of mounting plates, and an electric push rod is fixedly mounted on the side surface of the other group of mounting plates. A spline shaft A is installed at the output end of the motor, a connecting rod is installed at the output end of the electric push rod, and one end of the connecting rod is rotationally connected with a spline shaft B. The motor drives the spline shaft A to rotate, automatic winding of the spinning cylinder is achieved, production efficiency is improved, manual intervention is reduced, the operation process is optimized, the electric push rod drives the connecting rod to contract, the spline shaft B automatically leaves the spline groove, limiting of the spinning cylinder is relieved, workers only need to simply push the spinning cylinder, and the spinning cylinder can be automatically wound. Therefore, the complexity and the time of operation are reduced, and the convenience and the efficiency of operation are improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of anti-pinching devices for feet, in particular to an anti-pinching device for feet used in automatic tube dropping. Background Art

[0002] During the processing of chemical fiber yarns, the fibers need to be wound onto textile drums (also called reels or yarn drums) for centralized collection.

[0003] However, in the existing textile equipment, there are safety hazards in the unloading process. Specifically, there is a lack of effective protection measures when the textile drum is unloading, which may cause harm to the operator during the falling process of the textile drum. This design defect makes the safety of the operator unable to be effectively guaranteed and increases the risk in the work. Therefore, improvement is needed. Utility Model Content

[0004] The purpose of the utility model is to solve the technical problems raised in the above background technology.

[0005] The utility model adopts the following technical scheme: an anti-pinching device for automatically dropping a tube comprises a bottom plate, two groups of mounting plates are fixedly installed on the top surface of the bottom plate, a motor is fixedly installed on the side of one group of mounting plates, and an electric push rod is fixedly installed on the side of the other group of mounting plates, a spline shaft A is installed on the output end of the motor, a connecting rod is installed on the output end of the electric push rod, one end of the connecting rod is rotatably connected to the spline shaft B, a textile tube is installed between the spline shaft A and the spline shaft B, spline grooves are provided at both ends of the textile tube, a mounting block is fixedly installed on the top surface of the bottom plate, a rotating rod is rotatably connected to the inner side of the mounting block, a stopper is fixedly installed on one end of the rotating rod, a torsion spring is sleeved on the surface of the rotating rod, a protective plate is fixedly installed on the surface of the rotating rod, and a pressure strip is fixedly installed on the surface of the connecting rod.

[0006] Preferably, a limit block is fixedly installed on the surface of the base plate, and the limit block is an "L"-shaped structure.

[0007] Preferably, the pressure strip is fitted with the protective plate, and the sizes of the spline shaft A and the spline shaft B and the spline groove are adapted to each other.

[0008] Preferably, one end of the torsion spring is fixedly connected to the stopper, and the other end of the torsion spring is fixedly connected to the mounting block. Here, the torsion spring can be stably mounted.

[0009] Preferably, the mounting block is a "U"-shaped structure, and the material of the mounting block is austenitic stainless steel.

[0010] Preferably, the surface of the protective plate is provided with a warning mechanism, the warning mechanism comprises a groove, the groove is provided on the surface of the protective plate, the inner wall of the groove is provided with a side groove, the inner wall of the side groove is slidably connected with a slide rod, one end of the slide rod is fixedly installed with a slide cover, and the inner wall of the groove is fixedly installed with a reflective sheet. Here, the staff can be warned to pay attention.

[0011] Preferably, a push handle is fixedly mounted on the top surface of the sliding cover, so that the sliding cover can be pushed conveniently.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. The utility model realizes automatic winding of the textile tube by driving the spline shaft A to rotate through a motor, thereby improving production efficiency, reducing manual intervention, and optimizing the operation process. The electric push rod drives the connecting rod to retract, and the spline shaft B automatically leaves the spline groove to release the limit of the textile tube. The staff only needs to simply push the textile tube to complete the unloading process, thereby reducing the complexity and time of the operation and improving the convenience and efficiency of the operation. In the process of retracting the connecting rod, the pressure strip is synchronously driven to separate from the protective plate, and the protective plate is automatically erected due to the torsion of the torsion spring to prevent the textile tube from causing harm to the staff when it falls. At the same time, the design of the torsion spring and the limit block is used, so that the protective plate is evenly and reliably stressed during the erection process, thereby avoiding complex electronic control and sensor systems, reducing the failure rate, and improving the stability and reliability of the system. In addition, the unloading process does not require additional tools and can be completed only through an electric push rod and a simple mechanical push. The operation is simple and intuitive, and the technical requirements of the operator are reduced.

[0014] 2. The utility model adopts the design of the sliding cover. When the protective plate is folded, the sliding cover can cover the reflective sheet and the groove to prevent dust and debris from entering the reflective sheet and the inner wall of the groove, thereby improving the cleanliness and convenience of maintenance. When the protective plate is erected, the sliding cover automatically slides under the action of gravity to expose the reflective sheet, thereby realizing the automatic conversion of the protective plate protection and the reflective sheet exposure, reducing manual operation and improving work efficiency. The sliding cover automatically slides and exposes the reflective sheet, which can provide a clearer visual warning when the protective plate is erected, reminding the operator to pay attention to the status of the protective measures, thereby improving safety. When the protective plate is folded, the staff only needs to push the sliding cover to reset it by pushing the handle. The operation is simple and intuitive, and no complicated operating steps are required, thereby improving the convenience of use of the device. The sliding cover can also reduce the wear and pollution of the reflective sheet and the inner wall of the groove due to the accumulation of dust and debris, thereby extending the service life and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the anti-pinching device for automatic tube dropping proposed by the utility model;

[0016] Figure 2 This is a top view of the anti-pinching device for automatic tube dropping proposed by the utility model;

[0017] Figure 3 The utility model proposes a foot-pinching device for automatic tube dropping Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a side view of the anti-pinching foot device for automatic tube dropping proposed by the utility model;

[0019] Figure 5 The utility model proposes a foot-pinching device for automatic tube dropping Figure 4 Enlarged view of point B in the middle.

[0020] Legend:

[0021] 1. Bottom plate; 2. Mounting plate; 3. Motor; 4. Spline shaft A; 5. Electric push rod; 6. Connecting rod; 7. Spline shaft B; 8. Textile cylinder; 9. Spline groove; 10. Mounting block; 11. Turn bar; 12. Stop block; 13. Torsion spring; 14. Protective plate; 15. Pressure strip; 16. Limit block; 17. Groove; 18. Side groove; 19. Sliding rod; 20. Sliding cover; 21. Reflective sheet; 22. Push handle. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1

[0025] See also Figure 1-5The utility model provides a technical solution: an anti-pinching device for automatic tube dropping includes a bottom plate 1, a limit block 16 is fixedly installed on the surface of the bottom plate 1, and the limit block 16 is an "L" shaped structure. The limit block 16 can be connected to the bottom plate 1 by bolting or welding, and such a connection method not only ensures the stability of the equipment, but also facilitates later disassembly and maintenance. The material of the limit block 16 can be selected from high-strength alloy steel or wear-resistant cast iron, which can not only provide sufficient strength and durability, but also adapt to long-term high-intensity working environment. Two groups of mounting plates 2 are fixedly installed on the top surface of the bottom plate 1, and a motor 3 is fixedly installed on the side of one group of mounting plates 2, and an electric push rod 5 is fixedly installed on the side of the other group of mounting plates 2. The mounting plate 2 can be fixed on the bottom plate 1 by bolting or welding to ensure the stability of the mounting plate 2 and the firm installation of the motor 3 and the electric push rod 5. The bolt connection method is convenient for later maintenance and replacement, while the welding fixation provides higher strength and stability. The material of the mounting plate 2 can be selected from corrosion-resistant stainless steel or high-strength aluminum alloy, which can adapt to harsh working environments and provide long-term reliability. A spline shaft A4 is installed at the output end of the motor 3, and a connecting rod 6 is installed at the output end of the electric push rod 5, and one end of the connecting rod 6 is rotatably connected to a spline shaft B7. The material of the spline shaft A4 and the spline shaft B7 can be selected from high-strength steel to ensure its wear resistance and fatigue resistance during long-term use. A textile cylinder 8 is installed between the spline shaft A4 and the spline shaft B7, and spline grooves 9 are provided at both ends of the textile cylinder 8. The spline groove 9 can be formed by precision machining to ensure matching with the spline shaft A4 and the spline shaft B7, providing a stable transmission connection. The precision-machined spline groove 9 can be manufactured by a CNC machine tool to ensure its dimensional accuracy and surface finish, thereby improving transmission efficiency and stability.

[0026] See also Figure 1-5, a mounting block 10 is fixedly installed on the top surface of the base plate 1. The mounting block 10 is a "U"-shaped structure, and the material of the mounting block 10 is austenitic stainless steel. The mounting block 10 made of austenitic stainless steel is not only sturdy and durable, but also has excellent corrosion resistance and is suitable for long-term use. The mounting block 10 can be fixed to the base plate 1 by bolts or welding to ensure the firmness and stability of its installation. A rotating rod 11 is rotatably connected to the inner side of the mounting block 10, and a stopper 12 is fixedly installed on one end of the rotating rod 11. A torsion spring 13 is sleeved on the surface of the rotating rod 11. One end of the torsion spring 13 is fixedly connected to the stopper 12, and the other end is fixedly connected to the mounting block 10. The torsion spring 13 can be made of high-strength spring steel material, which has good elasticity and fatigue resistance, ensuring stable torque during long-term use. A protective plate 14 is fixedly installed on the surface of the rotating rod 11, and the protective plate 14 can be installed on the rotating rod 11 by bolting or riveting to ensure the stability of the protective plate 14. The material of the protective plate 14 can be selected from high-strength plastic or alloy steel, which can provide sufficient strength, reduce weight, and improve the convenience of operation. A pressure strip 15 is fixedly installed on the surface of the connecting rod 6, and the pressure strip 15 is fitted with the protective plate 14.

[0027] Embodiment 2

[0028] See also Figure 4-5 The surface of the protective plate 14 is provided with a warning mechanism, which includes a groove 17. The groove 17 is provided on the surface of the protective plate 14, and the inner wall of the groove 17 is provided with a side groove 18. The inner wall of the side groove 18 is slidably connected with a slide rod 19, one end of which is fixedly installed with a slide cover 20, the top surface of the slide cover 20 is fixedly installed with a push handle 22, and the inner wall of the groove 17 is fixedly installed with a reflective sheet 21. The slide rod 19 and the slide cover 20 can be made of high-strength plastic or stainless steel materials, which can ensure their wear resistance and corrosion resistance during the sliding process. The push handle 22 can be made of rubber or plastic materials to ensure the comfort and anti-slip performance of the operation.

[0029] Working principle: the motor 3 can drive the spline shaft A4 to rotate, and at this time the spline shaft A4 can drive the textile tube 8 to rotate, and the chemical fiber yarn can be wound to limit the position. After the winding is completed, when the tube is dropped, it is only necessary to drive the connecting rod 6 to contract through the electric push rod 5, and the connecting rod 6 then drives the spline shaft B7 to leave the spline groove 9, and the limit can be released at this time. Then the staff pushes the textile tube 8 until the textile tube 8 drives the spline groove 9 to leave the spline shaft A4. At this time, the textile tube 8 is separated from the motor 3, and the textile tube 8 falls naturally. At the same time, in the process of contraction of the connecting rod 6, the pressure strip 15 can be synchronously driven to separate from the protective plate 14. After the protective plate 14 loses the obstruction of the pressure strip 15, due to the torsion of the torsion spring 13, the torsion spring 13 can drive the stopper 12 to rotate, and the stopper 12 moves with After that, it can drive the rotating rod 11 to rotate, and the rotating rod 11 then drives the protective plate 14 to rotate outward until the protective plate 14 rotates ninety degrees and stands upright on the bottom plate 1. At this time, the protective plate 14 is limited by the limit block 16. At this time, the protective plate 14 is erected, which can prevent the textile tube 8 from hitting the staff when the tube is dropped, thereby improving safety. The utility model drives the spline shaft A4 to rotate by the motor 3 to realize the automatic winding of the textile tube 8, improves production efficiency, reduces manual intervention, and optimizes the operation process. The electric push rod 5 drives the connecting rod 6 to shrink, and the spline shaft B7 automatically leaves the spline groove 9 to release the limit of the textile tube 8. The staff only needs to simply push the textile tube 8 to complete the unloading process, which reduces the complexity and time of the operation and improves the convenience of operation. and efficiency, and during the contraction of the connecting rod 6, the pressure strip 15 is synchronously driven to separate from the protective plate 14, and the protective plate 14 is automatically erected due to the torsion of the torsion spring 13 to prevent the textile tube 8 from causing harm to the staff when it falls. At the same time, the design of the torsion spring 13 and the limit block 16 makes the protective plate 14 evenly and reliably stressed during the erection process, avoiding complex electrical control and sensor systems, reducing the failure rate, and improving the stability and reliability of the system. No additional tools are required for the unloading process, and it can be completed only by the electric push rod 5 and simple mechanical push. The operation is simple and intuitive, which reduces the technical requirements of the operator. By default, the sliding cover 20 can cover the groove 17 and the reflective sheet 21, and when the protective plate 14 is erected for protection, due to the effect of gravity The sliding cover 20 can automatically slide downward to expose the reflective sheet 21. When the protective plate 14 is folded up, the staff can push the sliding cover 20 to reset by the push handle 22 so that the sliding cover 20 covers the reflective sheet 21. This can prevent dust from falling on the reflective sheet 21 and the inner wall of the groove 17, thereby improving practicality. The utility model adopts the design of the sliding cover 20. When the protective plate 14 is folded up, the sliding cover 20 can cover the reflective sheet 21 and the groove 17 to prevent dust and debris from entering the reflective sheet 21 and the inner wall of the groove 17, thereby improving cleanliness and convenience of maintenance. When the protective plate 14 is erected, the sliding cover 20 automatically slides under the action of gravity to expose the reflective sheet 21, thereby realizing the automatic conversion between the protection of the protective plate 14 and the exposure of the reflective sheet 21, and reducing manual operation.The work efficiency is improved, and the sliding cover 20 automatically slides and exposes the reflective sheet 21, which can provide a clearer visual warning when the protective plate 14 is erected, reminding the operator to pay attention to the status of the protective measures, thereby improving safety. When the protective plate 14 is retracted, the staff only needs to push the sliding cover 20 to reset it through the push handle 22. The operation is simple and intuitive, and no complicated operating steps are required, which improves the convenience of using the device. The sliding cover 20 can also reduce the wear and pollution caused by dust and debris accumulation on the reflective sheet 21 and the inner wall of the groove 17.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for preventing foot pinching when automatically dropping a tube, comprising a bottom plate (1), characterized in that: Two groups of mounting plates (2) are fixedly mounted on the top surface of the bottom plate (1); a motor (3) is fixedly mounted on the side of one group of mounting plates (2); an electric push rod (5) is fixedly mounted on the side of the other group of mounting plates (2); a spline shaft A (4) is mounted on the output end of the motor (3); a connecting rod (6) is mounted on the output end of the electric push rod (5); one end of the connecting rod (6) is rotatably connected to a spline shaft B (7); a connecting rod (6) is mounted between the spline shaft A (4) and the spline shaft B (7). A spinning cylinder (8), both ends of which are provided with spline grooves (9), a mounting block (10) is fixedly mounted on the top surface of the bottom plate (1), a rotating rod (11) is rotatably connected to the inner side of the mounting block (10), a stopper (12) is fixedly mounted on one end of the rotating rod (11), a torsion spring (13) is sleeved on the surface of the rotating rod (11), a protective plate (14) is fixedly mounted on the surface of the rotating rod (11), and a pressure strip (15) is fixedly mounted on the surface of the connecting rod (6).

2. The anti-pinching device for automatic tube dropping according to claim 1 is characterized in that: A limit block (16) is fixedly mounted on the surface of the base plate (1), and the limit block (16) is an "L"-shaped structure.

3. The anti-pinching device for automatic tube dropping according to claim 1 is characterized in that: The pressure strip (15) is fitted with the protective plate (14), and the sizes of the spline shaft A (4) and the spline shaft B (7) and the spline groove (9) are adapted to each other.

4. The anti-pinching device for automatic tube dropping according to claim 1 is characterized in that: One end of the torsion spring (13) is fixedly connected to the stopper (12), and the other end of the torsion spring (13) is fixedly connected to the mounting block (10).

5. The anti-pinching device for automatic tube dropping according to claim 1 is characterized in that: The mounting block (10) is a "U"-shaped structure, and the material of the mounting block (10) is austenitic stainless steel.

6. The anti-pinching device for automatic tube dropping according to claim 1 is characterized in that: The surface of the protective plate (14) is provided with a warning mechanism, the warning mechanism comprising a groove (17), the groove (17) is provided on the surface of the protective plate (14), the inner wall of the groove (17) is provided with a side groove (18), the inner wall of the side groove (18) is slidably connected with a slide rod (19), one end of the slide rod (19) is fixedly mounted with a slide cover (20), and the inner wall of the groove (17) is fixedly mounted with a reflective sheet (21).

7. The anti-pinching device for automatic tube dropping according to claim 6 is characterized in that: A push handle (22) is fixedly mounted on the top surface of the sliding cover (20).