A packaging device for a bumper shell

Abstract

This invention discloses a packaging device for a bumper shell, belonging to the technical field of packaging devices. It includes a frame, a moving drive mechanism, and a wrapping mechanism. A movable seat is slidably connected to the frame, and the moving drive mechanism drives the movable seat to move on the frame. The wrapping mechanism includes a film tube, a moving and rotating assembly, a limiting assembly, and a lifting plate. This application features a lifting plate on a connecting frame, with multiple elastic strips evenly distributed on its inner connecting plate and a rubber sleeve covering its outer side. A spring drives the lifting plate, causing the elastic strips to continuously press against the surface of the bumper shell. The elastic strips can adaptively bend and deform according to the undulations, concave and convex structures, and corner shapes of the shell surface, allowing each elastic strip to independently conform to the local contour of the workpiece. Before wrapping, the elastic strips first press the free end of the protective film firmly onto the bumper; during the shell's rotation, the elastic strips continuously apply pressure to the protective film, effectively expelling air between the film and the workpiece, eliminating bubbles and wrinkles, and ensuring a tight fit of the protective film across the entire outer surface.

Description

Technical Field

[0001] This invention relates to the technical field of packaging devices, and more specifically to a packaging device for a bumper shell. Background Technology

[0002] As an important exterior and safety component of automobiles, bumper shells typically require multiple layers of protective film to be wrapped around their surface after manufacturing and before transportation and storage to prevent scratches, contamination, or UV aging during logistics. Currently, the film wrapping of bumper shells is mainly done manually or with semi-automatic equipment.

[0003] Existing laminating equipment typically includes a film feeding mechanism, a rotary clamping mechanism, and a moving platform, achieving wrapping through workpiece rotation in conjunction with film release. However, this type of equipment has the following shortcomings in practical use: Bumper shells have complex shapes, often irregular curved surfaces with significant curvature, uneven textures, and sharp corners. Existing film-pressing equipment typically uses rigid rollers or fixed pressure plates, which cannot adaptively conform to the surface variations of the workpiece. This results in uneven compaction of the protective film during wrapping, easily leading to air bubbles and wrinkles in curved transition areas, recessed areas, and edge corners. These air bubbles and wrinkles not only affect the packaging appearance but, more seriously, reduce the sealing and protective effect of the film, leaving the bumper shell at risk of moisture damage and scratches during long-term storage or transportation. Summary of the Invention

[0004] The purpose of this invention is to provide a packaging device for a bumper shell to overcome the above-mentioned defects in the prior art.

[0005] A packaging device for a bumper shell includes a frame, a moving drive mechanism, and a wrapping mechanism; A movable seat is slidably connected to the frame, and the movable drive mechanism drives the movable seat to move on the frame; The film wrapping mechanism includes a film tube, a moving and rotating assembly, a limiting assembly, and a lifting plate. The two ends of the film tube are rotatably connected to a fixed frame on the top of the moving base. Fixed plates are symmetrically arranged on both sides of the fixed frame. The moving and rotating assembly is located inside one of the fixed plates. Two limiting assemblies are provided and rotate on the moving and rotating assembly and the other fixed plate, respectively. A connecting frame is provided between the two fixed plates. The connecting frame has an installation groove. The two sides of the lifting plate are slidably connected to guide rods in the installation groove. A magnet for attracting the lifting plate is provided on the bottom wall of the installation groove. A spring is sleeved on the guide rod between the lifting plate and the bottom wall of the installation groove. A connecting plate is provided inside the lifting plate. Several elastic strips are evenly distributed on the connecting plate. The outer side of the elastic strips is wrapped with a rubber sleeve. A lever is provided below the elastic strips on the connecting frame.

[0006] Further, the movement driving mechanism comprises a rack, a first driving motor and a first gear, both sides of the moving seat are respectively slidably connected to two guide rails on the frame, the rack is arranged on the side of the frame, the first driving motor is mounted on a side plate at the side of the moving seat, the first gear is mounted on an output shaft of the first driving motor, and the first gear is meshed with the rack.

[0007] Further, the fixing frame comprises a supporting frame and an upper top frame, the supporting frame is arranged on the moving seat, the upper top frame is arranged on the supporting frame, brackets are symmetrically arranged on both sides of the upper top frame, and both ends of the film cylinder are respectively rotatably connected to the two brackets.

[0008] Further, the limiting assembly comprises a rotating disc, a rotating shaft, a limiting rod and a positioning pin, the rotating shaft is arranged on the rotating disc, a plurality of limiting rods are arranged on the rotating disc, and the positioning pin is arranged on the rotating disc and inserted into a side hole on the bumper housing.

[0009] Further, the moving and rotating assembly comprises a driving cylinder and a second driving motor, the driving cylinder is mounted on the outer side of the fixed plate, a moving plate is arranged at the end of a piston rod of the driving cylinder, the moving plate is provided with a sliding rod slidably connected with the fixed plate, the second driving motor is mounted on the moving plate, a second gear is arranged on an output shaft of the second driving motor, and the second gear is meshed with a third gear mounted on a rotating shaft rotatably connected to the moving plate.

[0010] Further, there are two sliding rods, which are diagonally arranged on the moving plate.

[0011] Further, a handle is arranged on the outer side of the lifting plate.

[0012] Further, the connecting frame is of a U-shaped structure, and its opening faces the direction of the fixed plate.

[0013] Further, the fixed plate is connected with the side surface of the supporting frame through a plurality of bolts.

[0014] The beneficial effect achieved by the present invention is: 1. This application includes a lifting plate installed in the mounting groove of the connecting frame. Multiple elastic strips are evenly distributed on the connecting plate inside the lifting plate, and the outer sides of the elastic strips are wrapped with rubber sleeves. Under the elastic force of the spring, the lifting plate drives the elastic strips to continuously press against the surface of the bumper shell. The elastic strips themselves have good elastic deformation capabilities, enabling them to adaptively bend and deform according to the undulations, concave and convex structures, and corner shapes of the bumper shell surface, allowing each elastic strip to independently conform to the local contour of the workpiece surface. Before lamination, the free end of the protective film can be pressed firmly onto the bumper. Furthermore, the elastic strips continuously apply pressure to the protective film during the rotation of the bumper shell, effectively expelling air between the film and the workpiece, eliminating bubbles and wrinkles, and ensuring a smooth and tight adhesion of the protective film to the entire outer surface of the bumper shell.

[0015] 2. When it is necessary to load or unload the bumper shell, the operator only needs to pull down the lifting plate using the handle on the outside of the lifting plate. This causes the lifting plate to be attracted and fixed to the magnet. At this time, the elastic strip deforms outward under the action of the lever, and the upper end of the elastic strip contacts the lever, causing the entire elastic strip to retract away from the bumper shell, thus creating space for loading and unloading the workpiece. This design effectively avoids the elastic strip scratching or interfering with the bumper shell during loading and unloading, protecting the surface quality of the workpiece, facilitating quick loading and unloading for the operator, and improving production efficiency.

[0016] 3. The moving and rotating component drives the limiting component to rotate through the meshing transmission of the second drive motor and the second and third gears. The limiting component achieves quick clamping and positioning of the workpiece through the insertion and engagement of the positioning pin with the side hole of the bumper shell, ensuring the stability of the workpiece rotation during the coating process and providing a reliable workpiece support foundation for flat coating. Attached Figure Description

[0017] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 This is a schematic diagram of the wrapping mechanism and bumper shell of the present invention.

[0020] Figure 4 This is a side view of the wrapping mechanism and bumper housing of the present invention.

[0021] Figure 5 This is a top view of the wrapping mechanism and bumper shell of the present invention.

[0022] Figure 6 This is a schematic diagram of the coating mechanism of the present invention.

[0023] The reference numerals in the attached drawings are explained as follows: 1. Frame; 11. Guide rail; 2. Movable seat; 3. Movable drive mechanism; 31. Rack; 32. Side plate; 33. Drive motor one; 34. Gear one; 4. Wrapping mechanism; 41. Film tube; 42. Fixed frame; 421. Support frame; 422. Top frame; 423. Bracket; 43. Fixed plate; 44. Movable rotating assembly; 441. Drive cylinder; 442. Movable plate; 443. 444. Slide rod; 445. Drive motor 2; 446. Gear 2; 447. Gear 3; 45. Limiting assembly; 451. Turntable; 452. Rotating shaft; 453. Limiting rod; 454. Positioning pin; 46. Connecting bracket; 461. Mounting slot; 462. Magnet; 47. Lifting plate; 471. Guide rod; 472. Spring; 473. Handle; 48. Connecting plate; 481. Elastic strip; 49. Toggle lever; 5. Bumper shell. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] The term "embodiment" as used herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of the phrase "embodiment" in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] like Figures 1 to 6 As shown, the present invention provides a packaging device for a bumper shell, including a frame 1, a moving drive mechanism 3 and a wrapping mechanism 4; Furthermore, a movable seat 2 is slidably connected to the frame 1, and the movable drive mechanism 3 drives the movable seat 2 to move on the frame 1. The movable drive mechanism 3 includes a rack 31, a drive motor 33, and a gear 34. The two sides of the movable seat 2 are slidably connected to two guide rails 11 on the frame 1. The rack 31 is provided on the side of the frame 1. The drive motor 33 is mounted on the side plate 32 on the side of the movable seat 2. The gear 34 is mounted on the output shaft of the drive motor 33. The gear 34 meshes with the rack 31. Compared with belt or chain drive, the gear and rack 31 meshing has the advantages of accurate transmission ratio, no slippage, and high positioning accuracy, which can accurately control the displacement distance and speed of the movable seat 2. In addition, the film wrapping mechanism 4 includes a film tube 41, a moving and rotating assembly 44, a limiting assembly 45, and a lifting plate 47. The two ends of the film tube 41 are rotatably connected to the fixed frame 42 on the top of the moving seat 2. The fixed frame 42 includes a support frame 421 and an upper top frame 422. The support frame 421 is located on the moving seat 2, and the upper top frame 422 is located on the support frame 421. The upper top frame 422 has symmetrical brackets 423 on both sides. The two ends of the film tube 41 are rotatably connected to the two brackets 423 respectively. The fixed plate 43 is symmetrically located on both sides of the fixed frame 42. The fixed plate 43 is connected to the side of the support frame 421 by several bolts, so as to realize the detachable fixed connection between the fixed plate 43 and the side of the support frame 421, which not only ensures the connection strength and stability, but also facilitates disassembly and maintenance. However, the moving and rotating assembly 44 is located inside one of the fixed plates 43. The moving and rotating assembly 44 includes a drive cylinder 441 and a drive motor 444. The drive cylinder 441 is installed on the outside of the fixed plate 43. The piston rod end of the drive cylinder 441 is provided with a moving plate 442. The moving plate 442 is provided with a slide rod 443 that is slidably connected to the fixed plate 43. There are two slide rods 443 arranged diagonally on the moving plate 442. Compared with parallel or single-sided arrangement of slide rods 443, the diagonal arrangement effectively resists tilting torque. The second drive motor 444 is mounted on the moving plate 442 and has a second gear 445 on its output shaft. The second gear 445 meshes with a third gear 446 mounted on the rotating shaft 452 of the moving plate 442. The moving plate 442 is driven to move axially by the drive cylinder 441, thereby realizing the axial movement of the limiting component 45. That is, the limiting component 45 can be pushed into or out of the side hole of the bumper housing 5, realizing automatic clamping and unloading. In addition, two limiting components 45 are provided and rotate on the movable rotating component 44 and another fixed plate 43 respectively. The limiting component 45 includes a turntable 451, a rotating shaft 452, a limiting rod 453 and a positioning pin 454. The turntable 451 is provided with a rotating shaft 452. Several limiting rods 453 are provided and located on the turntable 451 to circumferentially limit the bumper shell 5 from multiple directions to prevent the shell from shifting during the wrapping process. The positioning pin 454 is provided on the turntable 451 and inserted into the side hole on the bumper shell 5. The positioning pin 454 is inserted and engaged with the existing side hole on the bumper shell 5 to achieve precise positioning and anti-rotation. A connecting frame 46 is provided between the two fixed plates 43. The connecting frame 46 has a "U" shaped structure and its opening faces the fixed plate 43. The connecting frame 46 has a mounting groove 461. The two sides of the lifting plate 47 are slidably connected to the guide rods 471 in the mounting groove 461. The outer side of the lifting plate 47 is provided with a handle 473, which allows the operator to manually lift or press down the lifting plate 47. The bottom wall of the mounting groove 461 is provided with a magnet 462 for adsorbing the lifting plate 47, which can attract the lowered lifting plate 47. A spring 472 is sleeved on the guide rod 471 between the lifting plate 47 and the bottom wall of the mounting groove 461. In addition, a connecting plate 48 is provided on the inner side of the lifting plate 47. Several elastic strips 481 are evenly distributed on the connecting plate 48. The outer side of the elastic strips 481 is wrapped with a rubber sleeve. As a component that directly contacts the bumper shell 5, the rubber sleeve provides flexible contact to further prevent scratches. The elastic strips 481 themselves can be bent and deformed to adapt to the irregular curved surface of the bumper shell 5 and achieve a fit. The connecting frame 46 is provided with a lever 49 below the elastic strips 481. Detailed implementation methods and principles: First, the operator places the bumper shell 5 to be packaged between two limiting components 45. The positioning pin 454 on the limiting component 45 away from the moving and rotating component 44 is accurately inserted into the corresponding side hole on the side of the bumper shell 5. At the same time, the limiting rod 453 on the turntable 451 abuts against the side wall of the bumper shell 5. Next, the limiting component 45 located on one side of the moving rotating component 44 moves inward under the drive of the driving cylinder 441. The piston rod of the driving cylinder 441 extends and pushes the moving plate 442. The moving plate 442 slides on the fixed plate 43 through the slide rod 443, causing the limiting component 45 on this side to move closer to the bumper housing 5 until the positioning pin 454 on the limiting component 45 is accurately inserted into the corresponding side hole on the other side of the bumper housing 5. At the same time, the limiting rod 453 on the turntable 451 abuts against the side wall of the bumper housing 5, completing the positioning of the bumper housing 5. At this time, the bumper housing 5 is installed between the two turntables 451, waiting for the subsequent film coating operation.

[0027] Then, the operator pulls out the free end of the protective film on the film tube 41 and attaches it to the surface of the bumper shell 5 to be packaged. Then, the operator pulls the lifting plate 47 upward to disengage the lifting plate 47 from the magnet 462. Under the elastic force of the spring 472 on the guide rod 471, the multiple elastic strips 481 on the connecting plate 48 move upward and reset under the elastic force, so that the elastic strips 481 press on the protective film and pre-press the free end of the protective film to prevent the protective film from detaching from the bumper shell 5. Next, the drive motor 444 in the moving rotating assembly 44 starts to work. The output shaft of the drive motor 444 drives the gear 445 to rotate. The gear 445 drives the gear 446 to rotate through meshing. The gear 446 drives the rotating shaft 452 connected to it to rotate, thereby driving the turntable 451 of the limiting assembly 45 on this side to rotate. Since the bumper shell 5 is clamped and fixed by the two limiting assemblies 45, the rotation of the turntable 451 drives the entire bumper shell 5 to rotate around. Due to the rotating connection structure at both ends of the film tube 41, the protective film can be continuously pulled out and released as the bumper shell 5 rotates, thus achieving initial wrapping of the surface of the bumper shell 5. Meanwhile, the lifting plate 47 is always pressed downward under the action of the spring 472, so that the elastic strip 481 and its outer rubber sleeve are kept in close contact with the surface of the protective film. The elastic strip 481 itself has a certain elastic deformation ability, which can adapt to the surface undulation of the bumper shell 5, ensuring that the protective film is evenly pressed during the wrapping process, and adheres to the curved and concave parts of the bumper shell 5, effectively eliminating air bubbles and achieving a smooth film coating. While the bumper shell 5 continues to rotate and wrap, the moving drive mechanism 3 starts to work. The drive motor 33 starts, and its output shaft drives the gear 34 to rotate. The gear 34 meshes with the rack 31 on the side of the frame 1. Since the rack 31 is fixed, the rotation of the gear 34 generates relative motion, which drives the entire moving seat 2 to move laterally along the guide rail 11 on the frame 1 to the unloading position. When the moving seat 2 moves to the unloading position and the bumper shell 5 is completely wrapped by the protective film, stop the rotation of drive motor 1 33 and drive motor 2 444, and cut the protective film with an external cutter. Next, the lifting plate 47 is moved downward by the handle 473 on the outside of the lifting plate 47, so that the elastic strip 481 is pushed outward by the lever 49. When the lifting plate 47 moves to the point where it is attracted to the magnet 462, the upper end of the elastic strip 481 contacts the lever 49, thereby avoiding interference of the elastic strip 481 with the bumper shell 5 during subsequent material feeding, and also facilitating the subsequent installation of the bumper shell 5 to be packaged. Finally, the piston rod of the drive cylinder 441 retracts, causing the moving plate 442 and the side limiting component 45 to retract backward. The positioning pin 454 is pulled out from the side hole of the bumper housing 5, and the limiting rod 453 releases its contact with the bumper housing 5. The operator then removes the bumper housing 5 from the equipment, thus completing the entire packaging process.

[0028] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, are all within the protection scope of the present invention.

Claims

1. A packaging device for a bumper shell, characterized in that: It includes a frame (1), a moving drive mechanism (3), and a wrapping mechanism (4). A movable seat (2) is slidably connected to the frame (1), and the movable drive mechanism (3) drives the movable seat (2) to move on the frame (1); The film wrapping mechanism (4) includes a film tube (41), a moving and rotating assembly (44), a limiting assembly (45), and a lifting plate (47). The two ends of the film tube (41) are rotatably connected to the fixed frame (42) on the top of the moving base (2). Fixed plates (43) are symmetrically arranged on both sides of the fixed frame (42). The moving and rotating assembly (44) is located inside one of the fixed plates (43). Two limiting assemblies (45) are provided and rotate on the moving and rotating assembly (44) and the other fixed plate (43) respectively. A connecting frame (46) is provided between the two fixed plates (43), and an installation groove is provided in the connecting frame (46). (461) The two sides of the lifting plate (47) are slidably connected to the guide rod (471) in the mounting groove (461). The bottom wall of the mounting groove (461) is provided with a magnet (462) for adsorbing the lifting plate (47). The guide rod (471) is fitted with a spring (472) located between the lifting plate (47) and the bottom wall of the mounting groove (461). The inner side of the lifting plate (47) is provided with a connecting plate (48). Several elastic strips (481) are evenly distributed on the connecting plate (48). The outer side of the elastic strips (481) is wrapped with a rubber sleeve. The connecting frame (46) is provided with a lever (49) below the elastic strips (481).

2. The packaging device for a bumper shell according to claim 1, characterized in that: The moving drive mechanism (3) includes a rack (31), a drive motor (33) and a gear (34). The two sides of the moving seat (2) are slidably connected to two guide rails (11) on the frame (1). The side of the frame (1) is provided with a rack (31). The drive motor (33) is installed on the side plate (32) on the side of the moving seat (2). The gear (34) is installed on the output shaft of the drive motor (33). The gear (34) meshes with the rack (31).

3. The packaging device for a bumper shell according to claim 1, characterized in that: The fixed frame (42) includes a support frame (421) and an upper frame (422). The support frame (421) is mounted on the movable seat (2), and the upper frame (422) is mounted on the support frame (421). The upper frame (422) has symmetrical brackets (423) on both sides. The two ends of the film tube (41) are rotatably connected to the two brackets (423).

4. The packaging device for a bumper shell according to claim 1, characterized in that: The limiting component (45) includes a turntable (451), a rotating shaft (452), a limiting rod (453), and a positioning pin (454). The turntable (451) is provided with a rotating shaft (452), and several limiting rods (453) are provided and located on the turntable (451). The positioning pin (454) is provided on the turntable (451) and inserted into the side hole on the bumper shell (5).

5. The packaging device for a bumper shell according to claim 4, characterized in that: The movable rotation assembly (44) comprises a driving cylinder (441) and a second driving motor (444), wherein the driving cylinder (441) is installed on the outer side of the fixed plate (43), the end of the piston rod of the driving cylinder (441) is provided with a moving plate (442), the moving plate (442) is provided with a sliding rod (443) in sliding connection with the fixed plate (43), the second driving motor (444) is installed on the moving plate (442) and a second gear (445) is arranged on the output shaft of the second driving motor (444), and the second gear (445) is engaged with a third gear (446) installed on a rotating shaft (452) rotatably connected to the moving plate (442).

6. The packaging device for a bumper shell according to claim 5, characterized in that: There are two sliding rods (443) which are diagonally arranged on the moving plate (442).

7. The packaging device for a bumper shell according to claim 1, characterized in that: A handle (473) is arranged on the outer side of the lifting plate (47).

8. The packaging device for a bumper shell according to claim 1, characterized in that: The connecting frame (46) is of a U-shaped structure and the opening of the connecting frame faces towards the fixed plate (43).

9. A packaging device for a bumper shell according to claim 3, characterized in that: The fixed plate (43) is connected to the side surface of the support frame (421) through a plurality of bolts.

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