A bubble bag folding mechanism

Abstract

The utility model relates to bubble bag processing technical field, concretely is a kind of bubble bag folding mechanism, including folding and pressing platform, pressing plate, folding and turning plate and turnover mechanism, and pre-pressing positioning assembly is equipped in folding and pressing platform feed end;Pre-pressing positioning assembly is connected with the pre-positioning plate and roller through spring, and pre-pressing and direction adjustment are carried out to bubble bag, and pressing plate lifts and presses bubble bag by screw nut mechanism, and folding and turning plate is turned to complete folding by turnover mechanism folding.The utility model solves the problem that bubble bag is easy to deviate in the existing folding mechanism, and folding precision is low, with the advantages of high degree of automation, high folding efficiency, and adapting to different thickness bubble bag.

Description

Technical Field

[0001] This utility model relates to the field of bubble bag processing technology, specifically a bubble bag folding mechanism. Background Technology

[0002] Bubble bags are mainly made of high-pressure polyethylene bubble film. After the bubble film is cut into the required bag size, it is then processed by a special bubble film bag making machine. When making bubble bags, the original relatively wide bubble bag bottom paper is usually folded in half at the front of the bag making machine, straightened and flattened, and then fed into the conveyor belt of the bubble bag making machine.

[0003] In this process, folding the bottom of the bubble wrap usually requires manual operation by specialized staff. However, for high-frequency bubble wrap production and processing, manual folding is far from meeting the needs of efficient processing. Therefore, some automated mechanical folding mechanisms have gradually emerged, which have greatly improved the efficiency of folding processing. When folding bubble wrap, the existing folding mechanism only performs final positioning by pressing once and then folding. Since the bubble wrap itself is lightweight, it is very easy to shift during the transfer process, especially when it is transported on a conveyor belt. External thrust or gas can easily cause the placement direction to change. Therefore, it is necessary to pre-position it before it enters the folding and pressing stage. In response, this application proposes a bubble wrap folding mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a bubble wrap folding mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A bubble wrap folding mechanism includes a folding pressing table, a pressing plate, and a folding flipping plate. The two ends of the folding flipping plate are oscillatingly connected to the ends of the folding pressing table via two sets of flipping mechanisms. The crease of the bubble wrap to be folded is located at the connection between the folding pressing table and the folding flipping plate. With the flipping power of the flipping mechanism, the folding flipping plate is controlled to flip upward toward the folding pressing table, thereby folding the bubble wrap in half. At the same time, the pressing plate is raised and lowered above the folding pressing table, and the end of the pressing plate near the folding flipping plate is aligned with the horizontal end of the folding pressing table, ensuring that the bubble wrap is pre-pressed by the pressing plate before folding. A set of pre-compression positioning components is installed on the top of the folding compression table, located on the side of the compression plate away from the folding flip plate. The feeding end of the folding compression table is connected to the bubble bag conveying device. The incoming bubble bag passes through the pre-compression positioning components beforehand, and its placement angle is adjusted to a suitable direction. The pre-compression positioning components include two moving slides on both sides of the top of the folding compression table, parallel to the direction of movement of the bubble bag. A bottom slide plate is movably installed inside each of the two moving slides. A connecting block is elastically connected to the top of the bottom slide plate by a spring. A roller is rotatably connected to the top of the connecting block. A pre-positioning plate is rotatably connected to the top of the rollers on both sides. At the same time, the connecting block is vertically positioned within the moving slide. With the elasticity of the spring, the pre-positioning plate can be controlled to move up and down within a certain distance, which is convenient for pre-compressing bubble bags of different thicknesses. At the same time, the rotation of the rollers on both sides is used to adjust and move the direction of the bubble bag, ensuring rapid direction adjustment. The upper and lower ends of the roller are respectively limited and rotated within the prepositioning plate and connecting block, which ensures that the roller can rotate freely and will not detach. Meanwhile, the bottom end of the bottom slide plate is connected to a fastening bolt. The bottom of the movable slide corresponding to the fastening bolt is provided with a slide rail parallel to the movable slide rail. The bottom end of the fastening bolt extends to the outside of the bottom of the slide rail and is threaded with a locking nut. The movement of the fastening bolt is controlled by rotating the locking nut, thereby limiting the horizontal position of the prepositioning plate in the movable slide rail.

[0006] It should be noted that the extension end of the moving slide towards the folding and flipping plate is placed on the outer side of the bottom of the pressing plate, which prevents the prepositioning plate from entering under the pressing plate. Meanwhile, once the spring's elasticity is set, the pressure of the prepositioning plate on the bubble bag will not affect the bubble bag's movement towards the pressing plate.

[0007] Compared with the prior art, the beneficial effects of this utility model are: by using the pre-compression positioning component, the bubble bag is pre-compressed and oriented before folding, which effectively prevents the bubble bag from shifting during transmission and improves folding accuracy and stability.

[0008] The clamping plate employs a screw and nut lifting mechanism, along with a lifting and sliding assembly, to ensure smooth and precise clamping action, adapting to bubble bags of different thicknesses.

[0009] The flipping mechanism uses a semi-circular flipping slide rail and a servo motor to achieve synchronous flipping of the folding plate. The folding process is smooth and interference-free, improving the degree of automation and efficiency. Attached Figure Description

[0010] Figure 1 This is a partial three-dimensional structural diagram of a bubble wrap folding mechanism.

[0011] Figure 2This is a partial front view schematic diagram of a bubble wrap folding mechanism.

[0012] Figure 3 This is a partial side view of a bubble wrap folding mechanism.

[0013] Figure 4 for Figure 2 A magnified structural diagram of A in the diagram.

[0014] The components include: a folding and pressing table 10, a pressing plate 11, a folding and flipping plate 12, a flipping mechanism 13, a pre-positioning plate 14, a moving slide 15, a roller 16, a spring 17, a bottom slide plate 18, a lifting slide rod 19, a sliding sleeve block 20, a lead screw 21, a nut 22, a fastening bolt 23, a locking nut 24, a servo motor 27, a flipping disc 28, a flipping slide rail 29, a swing rod 30, and a connecting column 31. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Please see Figures 1-4 A bubble bag folding mechanism includes a folding pressing table 10, a pressing plate 11, and a folding flipping plate 12. The two ends of the folding flipping plate 12 are oscillatingly connected to the ends of the folding pressing table 10 via two sets of flipping mechanisms 13. The crease of the bubble bag to be folded is located at the connection between the folding pressing table 10 and the folding flipping plate 12. With the flipping power of the flipping mechanism 13, the folding flipping plate 12 is controlled to flip upward toward the folding pressing table 10, thereby folding the bubble bag in half. At the same time, the pressing plate 11 is raised and lowered above the folding pressing table 10, and the end of the pressing plate 11 that is close to the folding flipping plate 12 is aligned with the horizontal end of the end of the folding pressing table 10, ensuring that the bubble bag is pre-pressed by the pressing plate 11 before folding. A set of pre-compression positioning components is provided on the top of the folding compression table 10 located on the side of the compression plate 11 away from the folding flip plate 12. The feeding end of the folding compression table 10 is connected to the bubble bag conveying device in contact. The incoming bubble bag passes through the pre-compression positioning components in advance, and its placement angle is adjusted to a suitable direction. The pre-compression positioning components include two moving slides 15 opened on both sides of the top of the folding compression table 10 parallel to the moving direction of the bubble bag. A bottom slide plate 18 is movably installed inside each of the two moving slides 15. A connecting block is elastically connected to the top of the bottom slide plate 18 through a spring 17. A roller 16 is rotatably connected to the top of the connecting block. A pre-positioning plate 14 is rotatably connected to the top of the rollers 16 on both sides. At the same time, the connecting block is set in the upper limit in the vertical direction within the moving slide 15. With the elastic action of the spring 17, the pre-positioning plate 14 can be controlled to move up and down within a certain distance, which is convenient for pre-compressing bubble bags of different thicknesses. At the same time, the direction of the bubble bag is adjusted and moved by the rotation of the rollers 16 on both sides, ensuring rapid direction adjustment. The upper and lower ends of the roller 16 are respectively limited and rotatedly connected to the prepositioning plate 14 and the connecting block, which ensures that the roller 16 can rotate freely and will not detach. Meanwhile, the bottom end of the bottom slide plate 18 is connected to a fastening bolt 23. The bottom of the movable slide groove 15 corresponding to the fastening bolt 23 is provided with a slide track parallel to the movable slide groove 15. The bottom end of the fastening bolt 23 extends to the outside of the bottom of the slide track (the outside of the bottom of the folding pressing table 10), and is threaded with a locking nut 24. The movement of the fastening bolt 23 is controlled by rotating the locking nut 24, thereby limiting the horizontal position of the prepositioning plate 14 in the movable slide groove 15.

[0020] It should be noted that the extended end of the movable slide 15 toward the folding and flipping plate 12 is placed on the outer side of the bottom of the pressing plate 11, which prevents the prepositioning plate 14 from entering under the pressing plate 11. Meanwhile, after the elasticity of the spring 17 is set, the pressure of the prepositioning plate 14 on the bubble bag will not affect the bubble bag's movement towards the pressure plate 11.

[0021] In this embodiment of the invention, the bubble bag conveying device is generally configured as a conveyor belt, conveyor plate, or other similar structure. Three sets of lifting and sliding components and one set of power lifting components are arranged on four sides of the pressure plate 11. The power lifting components actively control the pressure plate 11 to move up and down, and the lifting and sliding components maintain the stability of the pressure plate 11 during lifting. Specifically, the power lifting assembly includes a nut 22 mounted on the side wall of the pressure plate 11 via a connecting rod. A lead screw 21 is threaded into the nut 22, and a servo motor 21 is connected to the bottom end of the lead screw 21. A guide device is provided on the nut 22 to limit its rotation. By starting the servo motor 21, the lead screw 21 is rotated, thereby controlling the nut 22 to move up and down along the lead screw 21. The lifting and sliding assembly includes a sliding sleeve 20 mounted on the side wall of the pressure plate 11 via a connecting rod. A lifting slide rod 19 is vertically mounted inside the sliding sleeve 20. The lower side of the lifting slide rod 19 is fixed to the side wall of the folding pressure table 10 via the sliding sleeve 20, thereby ensuring that the pressure plate 11 can be smoothly lifted and lowered by the sliding of the upper sliding sleeve 20.

[0022] Among them, the design of the lead screw 21, nut 22 and the guide device thereon must meet the following conditions: (1) The rotation of nut 22 must be restricted to ensure that the nut moves linearly up and down when the lead screw 21 rotates, and cannot rotate with it; this is usually achieved by slide rail, guide rod or similar mechanism to maintain the stability and accuracy of the lifting and lowering of the pressure plate 11.

[0023] This involves a slide rail, guide rod, or similar mechanism, typically consisting of a hardened track and a slider. The slider contains balls or rollers that allow it to slide smoothly along the track, providing high-precision, low-friction linear motion. For example, in the guide device for nut 22, the slider can be fixed to the nut, and the track is mounted on a fixed structure, restricting the nut to move only in the vertical direction.

[0024] Guide rod (guide bar): It is a smooth round rod, often used in conjunction with linear bearings (such as sleeve bearings or ball bearings). The guide rod is fixed on the frame, and the bearing is mounted on nut 22, which allows the nut to move up and down along the rod axis, but prevents radial rotation. The lead screw 21 and nut 22 are conventional mechanical structures, and will not be described in detail here.

[0025] Thread matching: The thread design of the lead screw 21 and nut 22 must match to ensure smooth transmission without jamming and to withstand the load of the pressure plate 11 (including the pressure of the bubble bag).

[0026] Strength requirements: The component materials must have sufficient strength and wear resistance to withstand frequent lifting operations and avoid deformation or wear that could affect the service life.

[0027] Control precision: The servo motor 2 should be able to precisely control the rotation angle and speed of the lead screw 21 to achieve accurate positioning of the pressing plate 11 and ensure consistent pressing effect of the bubble bag.

[0028] In one embodiment of this utility model, the two flipping mechanisms 13 are symmetrically distributed and include a semi-circular flipping slide rail 29 fixed on the side wall of the folding pressing table 10. A connecting column 31 is slidably connected inside the flipping slide rail 29. A swing rod 30 is installed on the side of the connecting column 31 away from the folding flipping plate 12. A flipping disk 28 is installed at one end of the swing rod 30. A servo motor 27 is connected to the middle of the flipping disk 28 through a connecting shaft. The bottom of the servo motor 27 is fixed on the folding pressing table 10 through a support rod. The two servo motors 27 operate synchronously, controlling the flipping disk 28 to drive the swing rod 30 to control the connecting column 31 to slide along the inside of the flipping slide rail 29. At the same time, the other end of the connecting column 31 is fixed to the side wall of the folding flipping plate 12. That is, under the swing of the two connecting columns 31, the folding flipping plate 12 is controlled to flip along the pressing plate 11 pressed on the upper side of the bubble bag, thereby performing a folding operation on the crease of the bubble bag.

[0029] In order to ensure that the folding and flipping plate 12 does not obstruct rotation, the smoothness of the slide rail must be guaranteed. The sliding of the connecting column 31 within the flipping slide rail 29 must be smooth and without jamming. The surface of the slide rail must be smooth, with appropriate gaps, and lubrication may be required to reduce friction.

[0030] The servo motors 27 on both sides must run synchronously to ensure that the flip plate 28 and the swing arm 30 move in unison, and to prevent the folding flip plate 12 from twisting or shifting.

[0031] The rotation axis of the folding and flipping plate 12 (i.e. the connection point with the connecting column 31) should be aligned with the edge of the pressure plate 11 to ensure that it does not interfere with the pressure plate 11 or other components when flipping.

[0032] Gap management: An appropriate gap must be maintained between the folding and flipping plate 12 and the folding and pressing table 10 and pressing plate 11 to prevent collision.

[0033] Motion path: The semi-circular design of the flip slide rail 29 needs to be optimized to make the motion path of the connecting column 31 smooth and avoid dead points or sharp turns.

[0034] It should be understood that in this application, all rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each part is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. It should also be understood that all parts in this application are made of metal or plastic materials with suitable strength in the relevant field to ensure that their structural rigidity meets the actual requirements.

[0035] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A bubble wrap folding mechanism, characterized in that, It includes a folding pressing table (10), a pressing plate (11), and a folding flipping plate (12); the end of the folding flipping plate (12) is swung and connected to the end of the folding pressing table (10) through a flipping mechanism (13); the pressing plate (11) is lifted and positioned above the folding pressing table (10); the feeding end of the folding pressing table (10) is provided with a pre-pressing positioning component for pre-pressing and adjusting the direction of the bubble bag.

2. The bubble wrap folding mechanism according to claim 1, characterized in that, The pre-pressing positioning assembly includes movable slides (15) on both sides of the top of the folding pressing table (10). A bottom slide plate (18) is movable in the movable slide plate (15). A connecting block is elastically connected to the top of the bottom slide plate (18) by a spring (17). A roller (16) is rotatably connected to the top of the connecting block. A pre-positioning plate (14) is rotatably connected to the top of the rollers (16) on both sides.

3. The bubble wrap folding mechanism according to claim 2, characterized in that, The bottom plate (18) is connected to a fastening bolt (23) at its bottom end. The fastening bolt (23) passes through the slide rail at the bottom of the movable slide groove (15) and is threaded with a locking nut (24).

4. The bubble wrap folding mechanism according to claim 1, characterized in that, The clamping plate (11) is raised and lowered by a power lifting assembly and a lifting sliding assembly; The power lifting assembly includes a lead screw (21), a nut (22) and a second servo motor. The nut (22) is fixed to the side wall of the pressure plate (11). The lead screw (21) is threadedly connected to the nut (22) and driven by the second servo motor. The lifting and sliding assembly includes a sliding sleeve (20) and a lifting slide rod (19). The sliding sleeve (20) is fixed to the side wall of the pressure plate (11) and sleeved on the lifting slide rod (19).

5. The bubble wrap folding mechanism according to claim 1, characterized in that, The flipping mechanism (13) includes a flipping slide rail (29) fixed on the side wall of the folding pressing table (10). A connecting column (31) is slidably connected inside the flipping slide rail (29). The connecting column (31) is connected to the flipping disk (28) through the swing rod (30). The flipping disk (28) is driven by a servo motor (27).

6. The bubble wrap folding mechanism according to claim 5, characterized in that, The flip slide rail (29) has a semi-circular structure, and the two servo motors (27) on both sides operate synchronously.

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