Film core rolling mechanism

Abstract

The utility model discloses a film roll core mechanism which comprises a first sleeve and a second sleeve, the first sleeve and the second sleeve are both of a through hole structure, an inserting body is arranged at the front end of the second sleeve, the second sleeve is connected into a through hole of the first sleeve in an inserting mode through the inserting body, and a shaft type structure capable of enabling a paper-core-free film roll to be arranged is jointly formed. The rear end of the first sleeve and the rear end of the second sleeve are provided with outwards-expanded turned-over edges which are used for limiting axial slippage of the paper-core-free film reel. The film core rolling mechanism completely replaces a traditional paper core structure, waste is reduced, and the requirement for green manufacturing is met; the combination length of the first sleeve and the second sleeve can be flexibly adjusted according to the size of the film roll, the requirements of the film rolls of various specifications are met, physical limiting is formed by the externally-expanded flanges at the rear ends of the sleeves, and the film roll is prevented from axially slipping. According to the thin film roll core mechanism, through the plug-in type split sleeve structure and the external expansion flanging limiting design, efficient fixing and stable supporting of a paper-core-free thin film roll are achieved, and the thin film roll core mechanism has the advantages of being convenient to disassemble and assemble, environmentally friendly, universal and the like.

Description

Technical Field

[0001] This utility model relates to the field of film winding equipment technology, and specifically to a core winding mechanism for paperless film rolls. Background Technology

[0002] In the field of thin film processing and storage, traditional thin film winding mechanisms typically rely on paper or plastic cores as support structures. These cores have the following drawbacks:

[0003] 1. Resource waste and environmental problems: Traditional paper cores must be discarded along with the film and cannot be reused, resulting in resource waste and environmental pollution;

[0004] 2. Low installation efficiency: Existing split-type core structures mostly use threaded or snap-fit ​​connections, which are cumbersome to disassemble and assemble, affecting the efficiency of film replacement;

[0005] 3. Risk of film damage: If there are sharp edges or gaps at the core connection, the film surface may be scratched during the winding process;

[0006] 4. Poor versatility: The existing core structure has limited adaptability and is difficult to adapt to the needs of film rolls of different widths or thicknesses.

[0007] To address the aforementioned problems, a new type of thin-film winding mechanism is urgently needed. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a film roll core mechanism that achieves efficient fixing and stable support of paperless film rolls through a plug-in split sleeve structure and an outward expansion flange limiting design, while solving the problems of ease of assembly and disassembly, environmental protection, and versatility.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A film core winding mechanism includes a first sleeve and a second sleeve, both of which are through-hole structures. The front end of the second sleeve is provided with a connector, and the second sleeve is inserted into the through hole of the first sleeve through the connector. Together, they form an axial structure that allows the paperless film roll to be set. The rear ends of the first sleeve and the second sleeve are provided with outwardly expanding flanges, which are used to restrict the axial slippage of the paperless film roll.

[0011] The film winding mechanism also includes two sleeve connectors, one of which is connected to the rear end of sleeve one and the other is connected to the rear end of sleeve two. The sleeve connectors are through-hole structures and include an integral cylindrical insert body and an outer flared edge connected to the cylindrical insert body. The connection between the outer flared edge and the cylindrical insert body is an arc transition.

[0012] Furthermore, the inner side of the rear through hole of the first sleeve and the second sleeve is provided with a circular groove, and the outer side of the cylindrical insert on the sleeve connector is provided with a circular protrusion that matches the circular groove.

[0013] Furthermore, the front end of the connector is provided with a cone to facilitate quick insertion of the connector into the through hole of the sleeve.

[0014] Furthermore, the outwardly expanding flange is a circular flange that extends outward from the rear ends of sleeve one and sleeve two, and the connection between the outwardly expanding flange and the sleeve is an arc transition.

[0015] Furthermore, the outer axial surfaces of sleeve one and sleeve two are provided with a number of spaced reinforcing ribs, which are located near the outwardly flared side.

[0016] Furthermore, the first sleeve and the second sleeve are made of plastic or metal materials.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] A film core mechanism is provided, including sleeve one and sleeve two. Both sleeve one and sleeve two are through-hole structures. Sleeve two has a connector at its front end, which connects to the through hole of sleeve one. Together, they form an axial structure that allows for the installation of coreless film rolls, completely replacing traditional paper core structures, reducing waste and meeting green manufacturing requirements. Sleeve one and sleeve two are axially connected via the connector, simplifying installation. The combined length of sleeves one and two can be flexibly adjusted according to the size of the film roll, adapting to various film roll specifications. The rear ends of sleeves one and two have outward-flaring flanges, which provide physical restraint and prevent axial slippage of the film roll. This film core mechanism, through its plug-in split sleeve structure and outward-flaring flange restraint design, achieves efficient fixing and stable support of coreless film rolls, featuring convenient assembly and disassembly, environmental friendliness, and versatility. Attached Figure Description

[0019] Figure 1 The figure shown is a three-dimensional structural diagram of the film winding mechanism of this utility model;

[0020] Figure 2 The figure shown is a side view of the film winding mechanism of this utility model;

[0021] Figure 3 The diagram shown is an exploded assembly structure diagram of the film core mechanism of this utility model;

[0022] Figure 4 The diagram shown is an exploded assembly diagram of the sleeve and sleeve connector.

[0023] In the figure: 1. Sleeve 1; 2. Sleeve 2; 3. Sleeve connector; 4. Circular groove; 5. Reinforcing rib; 11. Outward flaring; 21. Insert body; 22. Outward flaring; 23. Cone; 31. Cylindrical insert body; 32. Outward flaring edge; 33. Circular protrusion (33). Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] See Figure 1-4 As shown, this utility model provides a technical solution: a film roll core mechanism, including a sleeve 1 and a sleeve 2. Both sleeve 1 and sleeve 2 are through-hole structures. The front end of sleeve 2 is provided with a connector 21, which is inserted into the through hole of sleeve 1 through the connector 21, so that sleeve 2 and sleeve 1 are tightly connected together. Sleeve 1 and sleeve 2 together form an axial structure that allows the paperless film roll to be installed. The rear ends of sleeve 1 and sleeve 2 are provided with outwardly expanding flanges 11 and 22, which are used to restrict the axial slippage of the paperless film roll. Compared with the prior art, it completely replaces the traditional paper core structure, reduces waste generation, and meets the requirements of green manufacturing. Sleeve 1 and sleeve 2 are axially inserted through the connector 21, simplifying the installation steps and reducing the operation time by more than 50%. The combined length of sleeve 1 and sleeve 2 can be flexibly adjusted according to the size of the film roll to adapt to the needs of various specifications of film rolls. Both sleeve 1 and sleeve 2 have outwardly flared flanges (11, 22) at their rear ends. These flanges provide physical restraint, preventing the film roll from slipping axially. This film roll mechanism, through its plug-in split sleeve structure and outwardly flared flange restraint design, achieves efficient fixing and stable support for coreless film rolls, and features convenient assembly and disassembly, environmental friendliness, and versatility.

[0026] See Figure 3-4 As shown, the film winding mechanism also includes two sleeve connectors 3. One sleeve connector 3 is connected to the rear end of sleeve 1, and the other sleeve connector 3 is connected to the rear end of sleeve 2. The sleeve connector 3 has a through hole structure. The sleeve connector 3 includes an integral cylindrical insert body 31 and an outer expansion edge 32 connected to the cylindrical insert body 31. The connection between the outer expansion edge 32 and the cylindrical insert body 31 is an arc transition. This arc transition facilitates the smooth connection of the sleeve connector 3 and the fit of the outer expansion flange (11, 22).

[0027] The inner side of the through hole at the rear end of sleeve 1 and sleeve 2 is provided with a circular groove 4. The outer side of the cylindrical plug body 31 on the sleeve connector 3 is provided with a circular protrusion 33 that matches the circular groove 4. The sleeve connector 3 is connected to sleeve 1 and sleeve 2 through the circular protrusion 33. Through the design of the circular protrusion 33 and the circular groove 4, the sleeve and the sleeve connector 3 can rotate relative to each other.

[0028] See Figure 3 As shown, the front end of the connector 21 is provided with a cone 23 to facilitate the quick insertion of the connector 21 into the through hole of the sleeve 1. The outwardly expanding flanges (11, 22) are circular flanges that extend outward from the rear ends of the sleeve 1 and the sleeve 2. The connection between the outwardly expanding flanges (11, 22) and the sleeve is a rounded transition. The rounded transition structure avoids wear on the edge of the film, eliminates sharp angle contact, and reduces the risk of scratching the film.

[0029] See Figure 2-3 As shown, the outer axial surfaces of sleeve 1 and sleeve 2 are provided with several spaced reinforcing ribs 5, which are located near the outwardly flared edge. The reinforcing ribs 5 on the outer axial surfaces of the sleeves optimize stress distribution and improve overall bending strength.

[0030] In this embodiment, sleeve 1 and sleeve 2 can be made of plastic or metal materials, taking into account both lightweight and high strength requirements, and are suitable for different load scenarios.

[0031] In use, the sleeve connector 3 is assembled into the rear ends of sleeve 1 and sleeve 2 respectively. Sleeve 1 and sleeve 2 are then inserted into the interior of the coreless film roll. Sleeve 1 and sleeve 2 together form a shaft-shaped structure that allows the coreless film roll to be set. The film roll core mechanism is then placed on the shaft-shaped part through the through hole of the sleeve connector 3 and fixed, or the operator can grasp the sleeve connectors 3 at the left and right ends of the film roll core mechanism, and then unwrap the coreless film roll and pull it outwards for use. This film roll core mechanism completely replaces the traditional paper core structure, reduces waste generation, meets green manufacturing requirements, achieves efficient fixing and stable support of the coreless film roll, and features convenient assembly and disassembly, environmental friendliness, and versatility.

Claims

1. A film winding mechanism, characterized in that, Includes sleeve one (1) and sleeve two (2), both of which are through hole structures. The front end of sleeve two (2) is provided with a plug body (21), and sleeve two (2) is plugged into the through hole of sleeve one (1) through the plug body (21). Together, they form a shaft structure that allows the paperless film roll to be set. The rear ends of sleeve one (1) and sleeve two (2) are provided with outwardly expanding flanges (11, 22), which are used to restrict the axial slippage of the paperless film roll.

2. The film winding mechanism according to claim 1, characterized in that, It also includes two sleeve connectors (3), one sleeve connector (3) is connected to the rear end of sleeve one (1), and the other sleeve connector (3) is connected to the rear end of sleeve two (2). The sleeve connector (3) has a through hole structure. The sleeve connector (3) includes an integral cylindrical plug body (31) and an outer expansion edge (32) connected to the cylindrical plug body (31). The connection between the outer expansion edge (32) and the cylindrical plug body (31) is an arc transition.

3. The film winding mechanism according to claim 2, characterized in that, The inner side of the through hole at the rear end of the sleeve one (1) and the sleeve two (2) is provided with a circular groove (4), and the outer side of the cylindrical plug body (31) on the sleeve connector (3) is provided with a circular protrusion (33) that matches the circular groove (4).

4. The film winding mechanism according to claim 1, characterized in that, The front end of the connector (21) is provided with a cone (23) so that the connector (21) can be quickly connected to the through hole of the sleeve (1).

5. The film winding mechanism according to claim 1, characterized in that, The outwardly expanding flanges (11, 22) are circular flanges that extend outward from the rear ends of sleeve one (1) and sleeve two (2), and the connection between the outwardly expanding flanges (11, 22) and the sleeves is an arc transition.

6. The film winding mechanism according to claim 1, characterized in that, The outer axial surfaces of sleeve one (1) and sleeve two (2) are provided with a number of spaced reinforcing ribs (5), which are located close to the side of the outwardly flared edge.

7. The film winding mechanism according to claim 6, characterized in that, The first sleeve (1) and the second sleeve (2) are made of plastic or metal materials.

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