High temperature resistant aluminum foil composite film for vehicle winding equipment

Abstract

This application provides a high-temperature resistant aluminum foil composite film winding device for automobiles, belonging to the field of film composites. The high-temperature resistant aluminum foil composite film winding device for automobiles includes a driven support wheel assembly, an active support wheel assembly, a reel, a flexible pressure belt, and rolling elements. The active and driven support wheel assemblies are arranged opposite each other; one end of the reel is supported by the driven support wheel assembly, and the other end is supported by the active support wheel assembly; the flexible pressure belt is at least partially elastic; the flexible pressure belt, in a stretched state, wraps around the side of the reel end away from the active support wheel assembly, so that the contraction elasticity of the flexible pressure belt forms a force applied to the active support wheel assembly at the reel end; the rolling elements are disposed on the flexible pressure belt and supported between the flexible pressure belt and the reel to reduce the rotational resistance of the reel. By using the flexible pressure belt to press the end of the reel against the active support wheel assembly, the friction between the reel and the active support wheel assembly is not maintained by the reel's own weight, allowing for a lightweight design of the reel.

Description

Technical Field

[0001] This application belongs to the field of membrane composite technology, and more specifically, relates to a high-temperature resistant aluminum foil composite film winding device for automobiles. Background Technology

[0002] High-temperature resistant aluminum foil composite film for automotive applications is a special material used to manufacture aluminum foil airbags for vehicle shock absorbers. This composite film is typically composed of three layers: an innermost heat-sealing layer, a middle aluminum foil layer, and an outermost protective layer. In production, high-temperature resistant aluminum foil composite film for automotive applications is manufactured continuously, requiring winding equipment to collect the film before sending it to the next process for further processing.

[0003] Existing winding equipment features support wheels at both ends, with the ends of the roll resting on these wheels. When the support wheels rotate, they drive the roll to rotate, thus winding up the high-temperature resistant aluminum foil composite film, making it very convenient to use. However, for ease of use, existing winding equipment places the ends of the roll directly on the support wheels without any additional fixation, relying on the weight of the roll itself to press against the support wheels and ensure sufficient friction. This method requires the roll itself to be quite heavy, increasing the overall weight of the composite film roll (including the roll) and making handling more difficult. The current common solution is to first remove the roll, and then insert the roll for the next process after transporting the composite film roll to the next stage for unwinding. While this method reduces handling difficulty, it adds the steps of removing and inserting the roll, increasing operational complexity. Summary of the Invention

[0004] In view of this, this application provides a high-temperature resistant aluminum foil composite film winding device for automobiles to solve the technical problem in the prior art where the winding device's roller needs to rely on its own weight to maintain friction with the support wheel, resulting in a heavy roller.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0006] On the one hand, a high-temperature resistant aluminum foil composite film winding device for automobiles is provided, comprising:

[0007] Driven support wheel assembly;

[0008] An active support wheel assembly is disposed opposite to the driven support wheel assembly;

[0009] The reel is supported at one end by the driven support wheel assembly and at the other end by the active support wheel assembly;

[0010] A flexible pressure belt, at least partially elastic; the flexible pressure belt, in a stretched state, wraps around the end of the reel away from the active support wheel assembly, such that the contraction elasticity of the flexible pressure belt generates a force applied to the end of the reel towards the active support wheel assembly; and

[0011] A rolling element is disposed on the flexible pressure belt and supported between the flexible pressure belt and the reel to reduce the rotational resistance of the reel.

[0012] In some embodiments, the flexible pressure band includes:

[0013] A flexible crimping section, which bypasses the end of the reel away from the active support wheel assembly, and is fixed at one end; and

[0014] The elastic segment has one end connected to the free end of the flexible crimping segment, and the other end fixed by a detachable connection structure.

[0015] In some embodiments, a plurality of the rolling elements are arranged along the extension axis of the flexible pressure belt, thereby completely separating the flexible pressure belt from the reel.

[0016] In some embodiments, the rolling element is cylindrical, and the axis of rotation of the rolling element is parallel to the axis of the reel.

[0017] In some embodiments, the flexible pressure belt has a hollowed-out area, and the rolling element is disposed within the hollowed-out area;

[0018] The rolling element includes:

[0019] A rolling central shaft has embedded grooves at both ends; the edge of the hollowed-out area is embedded in the embedded groove.

[0020] The sleeve is rotatably fitted around the rolling central shaft and located within the hollowed-out area; the outer surface of the sleeve abuts against the roller.

[0021] In some embodiments, the active support wheel assembly includes:

[0022] The main drive wheel is connected to the drive unit via a transmission.

[0023] The secondary drive wheel is positioned at a predetermined horizontal distance from the main drive wheel, and the minimum distance between the secondary drive wheel and the main drive wheel is less than the diameter of the end of the spool.

[0024] In some embodiments, the active support wheel assembly further includes a side bracket, with the main drive wheel and the driven wheel respectively disposed on the side bracket;

[0025] The fixed end of the flexible crimping section is fixed to one end of the side bracket near the main drive wheel;

[0026] The elastic segment is fixed to the side bracket near the drive wheel via the detachable connection structure.

[0027] In some embodiments, the detachable connection structure includes:

[0028] A fixing hook is attached to one end of the side bracket near the drive wheel;

[0029] The hook is connected to the end of the elastic segment and is adapted to be hooked and fixed with the fixing hook.

[0030] In some embodiments, the fixing hook is fixed to the end face of the side bracket facing away from the rotating shaft, and the hook portion of the fixing hook is bent away from the rotating shaft.

[0031] In some embodiments, the reel includes:

[0032] The tube body has weight-reduction holes on its side walls; and

[0033] Multiple reinforcing ribs are distributed circumferentially within the tube, and each reinforcing rib extends axially along the tube.

[0034] The beneficial effects of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application embodiment are as follows: Compared with the prior art, the automotive high-temperature resistant aluminum foil composite film winding device in this application embodiment uses a driven support wheel set and an active support wheel set to support both ends of the roll respectively, and sets a flexible pressure belt to press the end of the roll onto the active support wheel set. Therefore, it is not necessary to rely on the weight of the roll itself to maintain the friction with the active support wheel set. The roll can be designed to be lightweight. There is no need to pull the roll out during use, and it will not have a significant impact on the transfer of the composite film roll. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A perspective view of a high-temperature resistant aluminum foil composite film winding device for automobiles provided in an embodiment of this application;

[0037] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0038] Figure 3 for Figure 1 A three-dimensional view of CRRC's high-temperature resistant aluminum foil composite film winding equipment from another angle;

[0039] Figure 4 for Figure 2 Side view of a local structure in the middle;

[0040] Figure 5 for Figure 2 Top view of a local structure;

[0041] Figure 6 A front view of the reel of a high-temperature resistant aluminum foil composite film winding device for automobiles provided in an embodiment of this application;

[0042] Figure 7 for Figure 6 Cross-sectional view of the central scroll structure.

[0043] The following are the labeling elements in the figure:

[0044] 1-Driven support wheel assembly; 2-Active support wheel assembly; 21-Main drive wheel; 22-Driven wheel; 23-Side bracket; 24-Drive unit; 3-Roller; 31-Tube body; 32-Weight reduction hole; 33-Reinforcing rib; 4-Flexible pressure belt; 41-Flexible pressing section; 42-Elastic section; 43-Hollowed area; 44-Fixing hook; 45-Hook sleeve; 5-Rolling element; 51-Rolling central shaft; 52-Sleeve; 6-High temperature resistant aluminum foil composite film. Detailed Implementation

[0045] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0046] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0047] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0049] Please refer to the following: Figures 1 to 7 The present application provides a description of a high-temperature resistant aluminum foil composite film winding device for automobiles. A high-temperature resistant aluminum foil composite film winding device for automobiles includes:

[0050] Driven support wheel assembly;

[0051] The active support wheel assembly is positioned opposite to the driven support wheel assembly.

[0052] The reel is supported at one end by the driven support wheel assembly and at the other end by the driving support wheel assembly;

[0053] The flexible pressure belt is at least partially elastic; the flexible pressure belt is stretched and wraps around the end of the reel away from the active support wheel assembly, such that the contraction elasticity of the flexible pressure belt forms a force applied to the end of the reel towards the active support wheel assembly; and

[0054] Rolling elements are provided on the flexible pressure belt and supported between the flexible pressure belt and the reel to reduce the rotational resistance of the reel.

[0055] Compared with the prior art, the automotive high-temperature resistant aluminum foil composite film winding device of this application embodiment uses a driven support wheel set and an active support wheel set to support the two ends of the roll respectively, and a flexible pressure belt is set to press the end of the roll onto the active support wheel set. Therefore, it does not need to rely on the weight of the roll itself to maintain the friction with the active support wheel set. The roll can be designed to be lightweight. There is no need to pull the roll out during use, and it will not have a significant impact on the transfer of the composite film roll.

[0056] In this embodiment, the specific structures of the driven support wheel assembly and the active support wheel assembly can refer to existing winding equipment. For example, the driven support wheel assembly can consist of two support wheels, which are supported together below one end of the reel; the active support wheel assembly also consists of two support wheels, which are supported together below one end of the reel. At least one support wheel of the active support wheel assembly is connected to a motor, thereby driving the reel to rotate.

[0057] In this embodiment, the two ends of the reel are supported on a driven support wheel assembly and a driven support wheel assembly, and are driven to rotate by the driven support wheel assembly, thereby enabling the winding of the high-temperature resistant aluminum foil composite film. The reel typically employs a lightweight design, such as a hollow design and / or the inclusion of weight-reducing holes.

[0058] In this embodiment, the flexible pressure belt is made entirely or partially of an elastic material, enabling it to generate a contraction elastic force when stretched. After being stretched, the flexible pressure belt wraps around the end of the reel away from the active support wheel assembly, and both ends are fixed to nearby structures. The contraction elastic force after stretching presses the end of the reel against the active support wheel assembly, thereby ensuring friction between the end of the reel and the active support wheel assembly.

[0059] In this embodiment, the rolling element is supported between the flexible pressure belt and the reel, reducing friction and improving the lifespan of the flexible pressure belt. Specifically, the rolling element can be a roller or a ball, etc.

[0060] In practice, a cutting device can be installed in front of the roll. Once the high-temperature resistant aluminum foil composite film wound on the roll reaches the required thickness, the cutting blade of the cutting device cuts the continuous high-temperature resistant aluminum foil composite film. The cutting blade slides obliquely, causing the cut end face of the high-temperature resistant aluminum foil composite film to be inclined. Since the high-temperature resistant aluminum foil composite film has a three-layer structure, with the aluminum foil layer in the middle, cutting the end face of the high-temperature resistant aluminum foil composite film at an angle ensures that the heat-sealing layer or protective layer protrudes from the aluminum foil layer at the end face of the high-temperature resistant aluminum foil composite film. When conveyed on the roller, the protruding layer can contact the roller, avoiding contact between the aluminum foil layer at the end of the high-temperature resistant aluminum foil composite film and the roller, thereby preventing the aluminum foil layer from forming a conductive path with the roller.

[0061] Please see Figure 2 , 4 5. As a specific embodiment of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the flexible pressure belt includes:

[0062] A flexible crimping section, which wraps around the end of the reel away from the active support wheel assembly, and is fixed at one end; and

[0063] The elastic section is connected at one end to the free end of the flexible crimping section, and at the other end is fixed by a detachable connection structure.

[0064] In this embodiment, the flexible crimping section is deformable, allowing it to conform to reels of different diameters (through rolling contact). The elastic section provides elasticity to the entire flexible pressure belt; when the flexible pressure belt is stretched, the elastic section elongates and generates contraction elasticity. One end of the elastic section is fixed by a detachable connection structure, allowing for easy removal of this section, thereby removing the flexible pressure belt from the end of the reel and facilitating the placement or removal of the reel from the active support roller assembly.

[0065] In practice, the flexible crimping section can be made of leather narrow strips, and the elastic section can be made of rubber narrow strips. Alternatively, the flexible crimping section and the elastic section can be a single integrated structure, both using rubber narrow strips.

[0066] Please see Figure 2 , 4 In embodiment 5, as a specific implementation of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, multiple rolling elements are arranged along the extension axis direction of the flexible pressure belt, and the flexible pressure belt is completely separated from the reel.

[0067] In this embodiment, multiple rolling elements are provided on the flexible pressure belt to completely separate the flexible pressure belt from the reel, thereby avoiding localized contact and wear between the flexible pressure belt and the reel.

[0068] Please see Figure 2 , 4 In embodiment 5, as a specific implementation of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the rolling element is cylindrical, and the axis of rotation of the rolling element is parallel to the axis of the winding shaft.

[0069] In this embodiment, the rolling element adopts a cylindrical structure to increase the contact area with the roller and reduce the pressure.

[0070] Please see Figure 2 , 4 5. As a specific embodiment of the automotive high-temperature resistant aluminum foil composite film winding equipment provided in this application, the flexible pressure belt is provided with a hollow area, and the rolling element is located in the hollow area;

[0071] Rolling elements include:

[0072] The central axis of the rolling shaft has embedded grooves at both ends; the edge of the hollowed-out area is embedded in the embedded groove.

[0073] The sleeve is rotatably fitted outside the rolling central shaft and located within the hollowed-out area; the outer surface of the sleeve abuts against the roller.

[0074] In practical implementation, a rectangular hollow area is set in the middle part of the flexible pressure belt. Specifically, the hollow area can be set in the flexible pressing section. The axis of the rolling central shaft is parallel to the axis of the roll, and I-shaped embedding grooves are set at both ends. The edge of the hollow area is embedded into the embedding groove and fixed by clamping or reinforced by rivets. The sleeve rotates freely on the rolling central shaft and abuts against the roll.

[0075] Please see Figure 2 and 4 As a specific embodiment of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the active support wheel set includes:

[0076] The main drive wheel is connected to the drive unit via a transmission.

[0077] The drive wheel is set at a predetermined horizontal distance from the main drive wheel, and the minimum distance between the drive wheel and the main drive wheel is less than the diameter of the end of the spool.

[0078] In this embodiment, the active support wheel assembly consists of a main drive wheel and a driven drive wheel. The main drive wheel and the driven drive wheel are horizontally distributed, and the minimum distance between them is less than the diameter of the end of the spool, thereby supporting the end of the spool. The main drive wheel is connected to a drive unit, which is typically an electric motor. The electric motor drives the main drive wheel to rotate through a gear set.

[0079] Please see Figure 2 and 4 As a specific embodiment of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the active support wheel set also includes a side bracket, with the main drive wheel and the driven wheel respectively located on the side bracket;

[0080] The fixed end of the flexible crimp section is fixed to the side bracket near the main drive wheel;

[0081] The elastic section is fixed to the side bracket near the drive wheel via a detachable connection structure.

[0082] In this embodiment, the main drive wheel and the driven wheel are mounted on the side bracket. The flexible pressing section is fixed to the end of the side bracket near the main drive wheel, while the elastic section is fixed to the end of the side bracket near the driven wheel through a detachable connection structure. This keeps the detachable connection structure away from the main drive wheel, preventing the drive and transmission structures of the main drive wheel from affecting the operator's operation of the detachable connection structure.

[0083] In practice, the side support is a vertical flat plate, which mainly serves a supporting function. It can be equipped with notches or holes to avoid other components. The main drive wheel and the driven wheel are installed on the same side of the side support.

[0084] Please see Figure 2 , 4 5. As a specific embodiment of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the detachable connection structure includes:

[0085] A fixing hook is attached to the side bracket near the end of the drive wheel;

[0086] The hook is connected to the end of the elastic section and is suitable for hooking and fixing with a fixed hook.

[0087] In this embodiment, the elastic segment is hooked to the fixed hook via a hook sleeve, thereby achieving a detachable connection. In a specific implementation, a through hole is machined into the end of the elastic segment to form the hook sleeve.

[0088] Please see Figure 2 , 4 In embodiment 5, as a specific implementation of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the fixing hook is fixed to the end face of the side bracket facing away from the rotating shaft, and the hook part of the fixing hook is bent away from the rotating shaft.

[0089] In practice, the fixing hook is welded and fixed to the end face of one end of the side bracket.

[0090] Please see Figure 6 and 7 As a specific embodiment of the automotive high-temperature resistant aluminum foil composite film winding device provided in this application, the reel includes:

[0091] The tube body has weight-reduction holes on its side walls; and

[0092] Multiple reinforcing ribs are distributed circumferentially within the tube, and each reinforcing rib extends axially along the tube.

[0093] In this embodiment, the tube body is weight-reduced by setting weight-reducing holes, and multiple reinforcing ridges are set to ensure strength.

[0094] In practice, the tube body and reinforcing ribs are integrated into a single structure, which can be made of aluminum alloy to further reduce weight. The reinforcing ribs are installed along the axial length of the tube body.

[0095] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A high-temperature-resistant aluminum foil composite film winding device for vehicles, characterized by comprising: include: Driven support wheel assembly; An active support wheel assembly is disposed opposite to the driven support wheel assembly; The reel is supported at one end by the driven support wheel assembly and at the other end by the active support wheel assembly; The flexible pressure belt is at least partially elastic; the flexible pressure belt is stretched and wraps around the end of the reel away from the active support wheel assembly, such that the contraction elasticity of the flexible pressure belt forms a force applied to the end of the reel and toward the active support wheel assembly; as well as A rolling element is disposed on the flexible pressure belt and supported between the flexible pressure belt and the reel to reduce the rotational resistance of the reel.

2. The high-temperature-resistant aluminum foil composite film winding apparatus for vehicles according to claim 1, characterized by The flexible pressure belt includes: A flexible crimping section, which bypasses the end of the reel away from the active support wheel assembly, and is fixed at one end; and The elastic segment has one end connected to the free end of the flexible crimping segment, and the other end fixed by a detachable connection structure.

3. The high temperature resistant aluminum foil composite film winding apparatus for vehicle according to claim 1, characterized in that, The plurality of the rolling elements are arranged along the extension axis of the flexible pressure belt, thereby completely separating the flexible pressure belt from the reel.

4. The high-temperature-resistant aluminum foil composite film winding apparatus for vehicles according to claim 2, characterized by The rolling element is cylindrical, and the axis of rotation of the rolling element is parallel to the axis of the reel.

5. The high-temperature-resistant aluminum foil composite film winding apparatus for vehicles according to claim 4, characterized by The flexible pressure belt has a hollow area, and the rolling element is disposed within the hollow area; The rolling element includes: A rolling central shaft has embedded grooves at both ends; the edge of the hollowed-out area is embedded in the embedded groove. The sleeve is rotatably fitted around the rolling central shaft and located within the hollowed-out area; the outer surface of the sleeve abuts against the roller.

6. The automotive high-temperature resistant aluminum foil composite film winding equipment as described in claim 5, characterized in that, The active support wheel assembly includes: The main drive wheel is connected to the drive unit via a transmission. The secondary drive wheel is positioned at a predetermined horizontal distance from the main drive wheel, and the minimum distance between the secondary drive wheel and the main drive wheel is less than the diameter of the end of the spool.

7. The high-temperature-resistant aluminum foil composite film winding apparatus for vehicles according to claim 6, characterized by The active support wheel assembly also includes a side bracket, and the main drive wheel and the driven wheel are respectively disposed on the side bracket; The fixed end of the flexible crimping section is fixed to one end of the side bracket near the main drive wheel; The elastic segment is fixed to the side bracket near the drive wheel via the detachable connection structure.

8. The high-temperature-resistant aluminum foil composite film winding apparatus for vehicles according to claim 7, characterized by The detachable connection structure includes: A fixing hook is attached to one end of the side bracket near the drive wheel; The hook is connected to the end of the elastic segment and is adapted to be hooked and fixed with the fixing hook.

9. The high-temperature-resistant aluminum foil composite film winding apparatus for vehicles according to claim 8, characterized by The fixing hook is fixed to the end face of the side bracket facing away from the rotating shaft, and the hook part of the fixing hook is bent away from the rotating shaft.

10. The high temperature resistant aluminum foil composite film winding apparatus for vehicle according to claim 1, characterized by, The reel includes: The tube body has weight-reduction holes on its side walls; and Multiple reinforcing ribs are distributed circumferentially within the tube, and each reinforcing rib extends axially along the tube.

Images