A protective device for wrapping heads

By designing a protective device for the wrapping head, the problem of airflow interference during the rotation of the wrapping head was solved, achieving stable tension and increased speed of the wrapping tape, thereby improving production efficiency and equipment stability.

CN224437284UActive Publication Date: 2026-06-30SHANGHAI PAIDAYA ELECTRICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI PAIDAYA ELECTRICAL TECH CO LTD
Filing Date
2025-08-15
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The airflow generated when the wrapping head rotates at high speed causes unstable tension and uneven pitch of the wrapping tape, making it prone to stretching or breakage, and limiting the wrapping speed.

Method used

A protective device for a wrapping head is designed, comprising first and second protective cover assemblies, which respectively wrap around the wrapping head and the wrapping disc, and are fixed to the wrapping head and the wrapping disc by connecting assemblies to form a closed space to prevent airflow from cutting and to ensure that the wrapping tape rotates stably under the action of centrifugal force when rotating.

Benefits of technology

It achieves stable tension of the wrapping tape and stable winding at the wrapping point, improves wrapping speed and production efficiency, reduces equipment heat and vibration, and reduces worker operation and maintenance time.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a wrapping head protection device, including a first protective cover assembly, a second protective cover assembly, and a connecting assembly. The first protective cover assembly can wrap around the wrapping head and is fixed relative to the wrapping head. The second protective cover assembly can wrap around the wrapping disc and is fixed relative to the wrapping disc. The connecting assembly can connect the first and second protective cover assemblies. The wrapping head protection device provided by this utility model protects both the wrapping head and the wrapping disc within the protective covers when the machine head of the wrapping machine rotates. The wrapping head, wrapping disc, and surrounding air rotate together, effectively preventing the wrapping head and wrapping disc from cutting the airflow during rotation. The wrapping tape can be stably and evenly wound around the core wire, ensuring stable tension and a stable wrapping point. The rotation speed of the wrapping head has little impact on the wrapping tape, allowing the equipment to rotate at higher speeds and improving production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of wrapping equipment technology, and in particular to a wrapping head protection device. Background Technology

[0002] Currently, wrapping is a cable processing technique that provides one or more layers of protection for wires and cables. The technical requirements for using wrapping machines include uniform tension and stable pitch. Because the wrapping head lacks protection, during high-speed operation, the swing arm and support cut through the air, generating airflow. The wrapping tape also cuts through the air, creating a strong airflow throughout the space. Simultaneously, the wrapping tape is subject to air resistance and sways, causing unstable tension, stretching, and even breakage. Furthermore, the faster the wrapping head rotates, the greater the impact of the generated airflow on the wrapping tape. Therefore, this results in drawbacks such as unstable wrapping pitch, inability to increase wrapping speed, and easy stretching and breakage of the wrapping tape.

[0003] Therefore, it is necessary to provide a technical solution that can eliminate the influence of airflow when rotating around the head of the bag, so as to effectively solve the above problems. Utility Model Content

[0004] This invention provides a wrapping head protection device that can effectively solve the airflow influence during the rotation of the wrapping head, completely control the wrapping tape tension, achieve tension stability, and improve the wrapping speed.

[0005] This utility model provides a protective device for wrapping heads, including the following components:

[0006] The first protective cover assembly can surround the head of the bag and is fixed relative to the head of the bag;

[0007] The second protective cover assembly can surround the package disc and is fixed relative to the package disc;

[0008] The connecting component is capable of connecting the first protective cover component and the second protective cover component.

[0009] Preferably, the second protective cover assembly is cylindrical in shape.

[0010] Preferably, the second protective cover assembly includes a second turntable, a third turntable, and a second fairing. The third turntable can be connected to the rotating part on the wrapping disc. Both the second and third turntables have openings in the middle. The second and third turntables are concentrically arranged. A second fairing is installed between the second and third turntables. A tie rod assembly is also installed between the second and third turntables.

[0011] Preferably, the pull rod assembly includes a guide roller and a plurality of pull rods. The guide roller is sleeved on the pull rods. One end of the pull rod is mounted on the second turntable, and the other end of the pull rod is mounted on the third turntable. A plurality of pull rods are distributed along the circumference of the second turntable.

[0012] Preferably, a second groove is formed around the outer edge of the second turntable, and a third groove is formed around the outer edge of the third turntable. One end of the cylindrical second fairing is inserted into the second groove, and the other end of the second fairing is inserted into the third groove.

[0013] Preferably, the first protective cover assembly has a conical shape.

[0014] Preferably, the first protective cover assembly includes a first turntable, which is fixedly connected to the second protective cover assembly. A conical first fairing is also installed on the first turntable. One end of the first fairing can be fitted onto the wrapping tube of the wrapping head, and the other end of the first fairing is connected to the outer edge of the first turntable.

[0015] Preferably, a first groove is formed around the outer edge of the first turntable, and the other end of the first fairing is fitted into the first groove.

[0016] Preferably, the connecting component includes multiple claws, and the first turntable has multiple claw mounting holes. The multiple claw mounting holes are evenly distributed around the circumference of the first turntable. Each claw mounting hole is hinged with a claw. The claw portion of the claw extends toward the second protective cover assembly and grips the second protective cover assembly.

[0017] Preferably, a conical protective sleeve is also fitted onto the wrapping tube at one end of the first fairing, and the conical protective sleeve is in contact with the outer wall of one end of the first fairing.

[0018] Compared with the prior art, the wrapping head protection device provided in this embodiment of the utility model has a first protective cover assembly that can surround the wrapping head to protect it in an internal space, and a second protective cover assembly that can surround the wrapping disc to protect it in an internal space. When the machine head of the wrapping machine rotates, both the wrapping head and the wrapping disc are protected in the protective covers, and the wrapping head, the wrapping disc, and the surrounding air rotate together, effectively preventing the wrapping head and the wrapping disc from cutting the airflow during rotation. Therefore, the beneficial effects of this technical solution are as follows:

[0019] 1. Prevents airflow interference with the wrapping tape; when the wrapping head rotates, the internal guide rod and the wrapping tape remain relatively stationary with respect to the air, generating minimal or no airflow. The wrapping tape can be stably and evenly wound around the core wire, ensuring stable tension and a stable wrapping point.

[0020] 2. Increased rotational speed significantly improves production efficiency. The rotational speed of the wrapping head has minimal impact on the strapping material, allowing the equipment to rotate at higher speeds and increasing linear speed, thus improving production efficiency. Furthermore, rapid air cutting generates heat, which affects the properties of the strapping material and its quality depending on temperature. In this device, the components of the wrapping head are only subjected to centrifugal force; after dynamic balancing, this centrifugal force is balanced, preventing severe machine vibration even at high speeds. The overall temperature of the wrapping head space is reduced, preserving the chemical properties of the wrapped strapping material, protecting the structural characteristics of the wrapping head, and facilitating worker operation. The significantly increased wrapping speed improves production efficiency and reduces worker operation and maintenance time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model, not all embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of a wrap-around head protection device provided in this embodiment of the present invention during use;

[0023] Figure 2 A schematic diagram of the structure of a wrap-around head protection device provided in an embodiment of this utility model;

[0024] Figure 3 for Figure 2 A magnified view of a portion of point P in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] A. Wrap around the head of the bag B. Wrap around the bag tray C. Place the tray

[0027] D. Wrapping tube 1. First protective cover assembly 2. Second protective cover assembly

[0028] 3. Connecting components; 11. First turntable; 12. Second turntable;

[0029] 13. Conical protective sleeve; 21. Second turntable; 23. Third turntable.

[0030] 24. Pull rod assembly 31. Claw 111. First groove 211. Second groove 241. Guide roller 242. Pull rod 311. Claw part Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0032] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0033] Based on the problems existing in the current technology, please refer to Figure 1 This is a schematic diagram of the structure of a wrap-around head protection device provided in an embodiment of the present invention. The embodiment of the present invention provides a wrap-around head protection device, including a first protective cover assembly 1, a second protective cover assembly 2, and a connecting assembly 3:

[0034] The first protective cover assembly 1 can surround the head A and is fixed relative to the head A, thus protecting the parts on the head A. The cross-sectional shape of the protective cover outside the first protective cover assembly 1 can be conical, cylindrical, regular polyhedron, etc. It surrounds the head A and is used to protect the head A in an internal space. When rotating, the head A and the air in the first protective cover assembly 1 can rotate together.

[0035] The second protective cover assembly 2 can surround the wrapping disc B and is fixed relative to the wrapping disc, thus protecting the parts on the wrapping disc B. The cross-sectional shape of the protective cover outside the second protective cover assembly 2 can be conical, cylindrical, regular polyhedron, etc. It surrounds the wrapping disc B and is used to protect the wrapping head B in an internal space. When rotating, the air in the wrapping disc B and the second protective cover assembly 2 can rotate together.

[0036] The protective covers in the first protective cover assembly 1 and the second protective cover assembly 2 can be fixed to the rotating parts on the wrapping head A or the wrapping disc B via a frame; the protective covers can be made of polycarbonate or other plastic materials, or they can be thin metal sheets. Polycarbonate material has high strength and elastic modulus, high impact strength, high transparency, low molding shrinkage, and good dimensional stability.

[0037] The connecting component 3 can connect the first protective cover component 1 and the second protective cover component 2. For example, the connecting component 3 can be a connecting rod, which can connect the first protective cover component 1 and the second protective cover component 2; or the connecting component 3 can be a bolt, which connects the first protective cover component 1 and the second protective cover component 2.

[0038] The wrapping head protection device provided in this embodiment has a first protective cover assembly 1 that can surround the wrapping head A to protect the wrapping head A in an internal space, and a second protective cover assembly 2 that can surround the wrapping disc B to protect the wrapping disc B in an internal space. When the head of the wrapping machine rotates, both the wrapping head A and the wrapping disc B are protected in the protective cover. The wrapping head A, the wrapping disc B and the surrounding air rotate together, which effectively prevents the wrapping head A and the wrapping disc B from cutting the airflow when they rotate.

[0039] In one embodiment of this disclosure, the second protective cover assembly 2 is cylindrical in shape. The second protective cover assembly 2 includes a second turntable 21, a third turntable 22, and a second fairing 23. The second turntable 21 and the third turntable 22 can be arranged parallel to each other and concentrically. The third turntable 22 can be connected to the rotating part on the wrapping disc B and is installed concentrically with the rotating part around the rotation axis. The installation method can be screw or bolt connection. Both the second turntable 21 and the third turntable 22 have openings in the middle. The opening in the third turntable 22 can pass through the tape feeding disc C, and the opening in the second turntable 21 can pass through the wrapping tube D. The second turntable 21 and the third turntable 22... The three turntables 22 are arranged concentrically. A second fairing 23 is installed between the second turntable 21 and the third turntable 22. The second fairing 23 can be installed on the outer edge of the first turntable 21 and the second turntable 22, or it can be snapped onto the inner edge of the first turntable 21 and the second turntable 22. A tie rod assembly 24 is also installed between the second turntable 21 and the third turntable 22. The tie rod assembly 24 is used to fix the relative position of the second turntable 21 and the third turntable 22, and also facilitates the snapping onto the second fairing 23, thereby fixing the second fairing 23.

[0040] Specifically, the pull rod assembly 24 includes a guide roller 241 and multiple pull rods 242. The guide roller 241 is sleeved on the pull rods 242 and is used for wrapping tape to pass through the guide roller 241. One end of the pull rod 242 can be installed on the second turntable 21 by means of threaded installation, and the other end of the pull rod 242 can also be installed on the third turntable 22 by means of threaded installation. Multiple pull rods 242 are distributed around the second turntable 21, thereby relatively fixing the second turntable 21 and the third turntable 22.

[0041] See Figure 2This is a schematic diagram of the structure of a protective device for a shroud provided in this embodiment. A second groove 211 is formed around the outer edge of the second turntable 21, and a third groove 221 is formed around the outer edge of the third turntable 22. The second groove 211 and the third groove 221 are formed around the turntable, and their diameters are the same as the diameter of the second fairing 23. One end of the cylindrical second fairing 23 is inserted into the second groove 211, and the other end of the second fairing 23 is inserted into the third groove 221. After the second turntable 21 and the third turntable 23 are tightened by the pull rod, the second groove 211 and the third groove 221 will lock the second fairing 23 in place.

[0042] See Figure 1 As shown, in another embodiment of this disclosure, the first protective cover assembly 1 is conical in shape. The first protective cover assembly 1 includes a first turntable 11, which is fixedly connected to the second protective cover assembly 2. The first turntable 11 and the second turntable 21 can also be integral parts. A conical first fairing 12 is also installed on the first turntable 11. One end (short diameter end) of the first fairing 12 can be fitted onto the winding tube D of the winding head A, and is adapted to the diameter of the winding tube D. The other end (long diameter end) of the first fairing 12 is connected to the outer edge of the first turntable 11.

[0043] See Figure 2 As shown, to facilitate the installation and positioning of the first fairing 12, a first groove 111 is formed around the outer edge of the first turntable 11. This first groove 111 can be a circular groove or a recessed step extending to the center of the first turntable 11. The other end of the first fairing 12 is fitted into the first groove 111 to secure the long-diameter end of the first fairing 12. A conical protective sleeve 13 is also fitted onto the wrapping tube D at one end of the first fairing 12, fitting snugly against the outer wall of that end. The conical protective sleeve 13 can be screwed onto the wrapping tube D to position the short-diameter end of the first fairing 12.

[0044] See Figure 3 As shown, the connecting component 3 includes multiple claws 31. Multiple claw mounting holes 112 are provided on the first turntable 11. The multiple claw mounting holes 112 are evenly distributed around the first turntable 11. A claw 31 is hinged in each claw mounting hole 112. The claw part 311 on the claw 31 extends toward the second protective cover component 2 and grabs onto the second protective cover component 2.

[0045] In summary, the technical solution disclosed herein has the following advantages;

[0046] 1. Stable tension: The wrapping tape in wrapping head A is not affected by airflow and is only subject to centrifugal force, so its tension can be completely controlled, achieving stable tension.

[0047] 2. Stable wrapping point: When the wrapping head A and wrapping disc B rotate, the wind resistance is small, the wrapping tape will not swing up and down, and can be stably wrapped on the cable.

[0048] 3. Speed ​​increase: The high-speed rotation around the bag head A does not rapidly cut through the air, thus not generating a large amount of heat. The bag strap temperature is not high, which can effectively increase the speed.

[0049] 4. Improved production efficiency: Since the equipment parts and wrapping tape do not cut the air at high speed, the rotation speed of the wrapping head can be increased, which can greatly improve the user's production efficiency. In addition, the equipment does not cut the air and generate high-frequency vibration during operation, which reduces machine wear and tear, allows for long-term operation, and reduces downtime and maintenance costs.

[0050] 5. Reduce worker operation and maintenance time: When it is necessary to replace the wrapping tape reel, workers do not need to wait for the temperature to drop before they can directly carry out reel replacement, maintenance and other work.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wraparound head protection device, characterized in that, Includes the following components: The first protective cover assembly can surround the head of the bag and is fixed relative to the head of the bag; The second protective cover assembly can surround the package disc and is fixed relative to the package disc; The connecting component is capable of connecting the first protective cover component and the second protective cover component.

2. The wrapping head protection device according to claim 1, characterized in that, The second protective cover assembly is cylindrical in shape.

3. The wrapping head protection device according to claim 2, characterized in that, The second protective cover assembly includes a second turntable, a third turntable, and a second fairing. The third turntable can be connected to the rotating part on the wrapping disc. Both the second and third turntables have openings in the middle. The second and third turntables are concentrically arranged. A second fairing is installed between the second and third turntables. A tie rod assembly is also installed between the second and third turntables.

4. The wrapping head protection device according to claim 3, characterized in that, The pull rod assembly includes a guide roller and a plurality of pull rods. The guide roller is sleeved on the pull rods. One end of the pull rod is mounted on the second turntable, and the other end of the pull rod is mounted on the third turntable. A plurality of pull rods are distributed along the circumference of the second turntable.

5. The wrapping head protection device according to claim 3, characterized in that, A second groove is formed around the outer edge of the second turntable, and a third groove is formed around the outer edge of the third turntable. One end of the cylindrical second fairing is inserted into the second groove, and the other end of the second fairing is inserted into the third groove.

6. The wrapping head protection device according to claim 1, characterized in that, The first protective cover assembly is conical in shape.

7. The wrapping head protection device according to claim 6, characterized in that, The first protective cover assembly includes a first turntable, which is fixedly connected to the second protective cover assembly. A conical first fairing is also installed on the first turntable. One end of the first fairing can be fitted onto the wrapping tube of the wrapping head, and the other end of the first fairing is connected to the outer edge of the first turntable.

8. The wrapping head protection device according to claim 7, characterized in that, A first groove is formed around the outer edge of the first turntable, and the other end of the first fairing is fitted into the first groove.

9. The wrapping head protection device according to claim 7, characterized in that, The connecting component includes multiple claws. The first turntable has multiple claw mounting holes, which are evenly distributed around the circumference of the first turntable. Each claw mounting hole is hinged with a claw. The claw portion of the claw extends toward the second protective cover assembly and grips the second protective cover assembly.

10. The wrapping head protection device according to claim 7, characterized in that, A conical protective sleeve is also fitted on the wrapping tube at one end of the first fairing, and the conical protective sleeve is in contact with the outer wall of one end of the first fairing.