Automatic folding forming device for flexible packaging container

Abstract

The utility model discloses an automatic folding forming device of a flexible packaging container, which comprises a frame body, a driving motor connected with the frame body, a piston frame connected with the driving motor, a piston rod inserted in the piston frame, an external negative pressure vacuum device connected with the piston rod, a piston head connected with the piston rod, and a suction hole formed in the piston head. An external negative pressure vacuum device is communicated with the piston head through a piston rod, so that the suction hole has an adsorption effect, and the frame body is connected with a mold which is connected with a forming cup body. The device has the beneficial effects that the production efficiency is greatly improved; stable product quality is guaranteed; the production cost is obviously reduced; operation is convenient, and adaptability is high.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically to an automatic folding and forming device for flexible packaging containers. Background Technology

[0002] In the packaging industry, with the increasing variety of products and the continuous growth of market demand, higher requirements are being placed on the production efficiency and quality of packaging containers. For the packaging of fluids, granules, and powders, flexible packaging containers made of paper film or aluminum foil are widely used due to their advantages such as low cost, light weight, and good barrier properties.

[0003] However, traditional flexible packaging container production mainly relies on manual folding of paper film or aluminum foil. Manual folding not only requires a large workforce but is also extremely inefficient. For example, folding a common rectangular flexible packaging container by hand can take several minutes, which is insufficient to meet the speed requirements of modern mass production. Furthermore, due to differences in the skill levels and operating habits of different operators, folding precision is difficult to guarantee, resulting in inconsistent product quality and a high scrap rate.

[0004] Furthermore, manual folding makes standardized production difficult, resulting in inconsistent dimensions and shapes of packaging containers. This not only affects the product's appearance but can also cause inconvenience in subsequent packaging, transportation, and use. With the rapid development of modern industry, manufacturers have an ever-increasing demand for packaging containers, and manual folding can no longer meet the industry's needs. Therefore, developing a device that can automatically fold and shape flexible packaging containers to achieve efficient, precise, and standardized production has become an urgent problem to be solved in the packaging equipment field. Utility Model Content

[0005] To address the aforementioned problems, and especially the shortcomings of existing technologies, this invention provides an automatic folding and forming device for flexible packaging containers that can solve these problems.

[0006] To achieve the above objectives, the present invention employs the following technical means:

[0007] An automatic folding and forming device for flexible packaging containers includes a frame, a drive motor connected to one side of the frame, a piston frame connected to the drive end of the drive motor, multiple sets of evenly distributed piston rods inserted into the piston frame, the piston rods connected to an external negative pressure vacuum device, a piston head connected to the insertion end of the piston rod, a suction hole opened at the bottom of the piston head, the external negative pressure vacuum device being connected through the piston rods and the piston head, so that the suction hole has an adsorption function, a mold connected to the frame is provided at the bottom of the piston head, and multiple sets of forming cups corresponding one-to-one with the multiple sets of piston heads are connected to the mold and the corresponding side of the piston head.

[0008] A further embodiment of this invention is that the bottom of the frame is provided with a shock-absorbing pad.

[0009] A further embodiment of this invention is that the drive motor is a servo motor with adjustable speed.

[0010] A further embodiment of this invention is that the piston frame is connected to the drive end of the drive motor via a thread.

[0011] A further aspect of this invention is that the piston head is made of a flexible material.

[0012] A further embodiment of this invention is that the bottom of the piston head has multiple sets of suction holes, which are arranged in an array.

[0013] A further embodiment of this invention is that the mold and the frame are connected by bolts.

[0014] A further embodiment of this invention is that the molded cup body has a guide cavity inside, which is used to fold the paper film or aluminum foil into a rectangular or triangular packaging container.

[0015] The beneficial effects of this utility model are:

[0016] 1. This invention significantly improves production efficiency. Through automated operation, this device eliminates the tedious process of traditional manual folding. Utilizing the coordinated operation of a drive motor, piston frame, piston rod, and piston head, it continuously and rapidly pushes paper film or aluminum foil into the cup shape, completing the folding and forming of the packaging container. Compared to the several minutes required for manual folding of each container, this device can produce a large number of packaging containers in a short time, greatly shortening the production cycle and meeting the needs of large-scale production.

[0017] 2. This utility model ensures stable product quality. The forming cup body inside the device is equipped with a guide cavity, which can strictly fold paper film or aluminum foil into rectangular or triangular packaging containers according to the preset shape, avoiding differences in folding precision caused by human factors. This not only reduces the scrap rate, but also ensures that the size and shape of each packaging container are highly consistent, significantly improving the stability of product quality and enhancing the product's competitiveness in the market.

[0018] 3. This utility model significantly reduces production costs. Automated production reduces reliance on manual labor, lowers labor costs, and reduces raw material waste due to the lower scrap rate, further saving production costs. In addition, the mold and frame are bolted together, facilitating the replacement of different types of molds and enabling a single set of equipment to produce packaging containers of various specifications, improving the equipment's versatility and avoiding the cost of repeatedly purchasing equipment.

[0019] 4. This utility model is easy to operate and highly adaptable. The piston frame is connected to the drive motor via a thread, allowing for fine-tuning of the piston frame's stroke to accommodate the folding requirements of different specifications of paper film or aluminum foil. This makes the device more adaptable to diverse production tasks, while the simple structural design reduces the difficulty of operation, making it easy for staff to learn and perform daily maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the finished packaging container of this utility model;

[0022] Figure label:

[0023] Frame 1, drive motor 2, piston frame 3, piston rod 4, piston head 5, mold 6, forming cup body 7. Detailed Implementation

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

[0025] Example 1

[0026] like Figure 1 As shown, an automatic folding and forming device for flexible packaging containers includes a frame 1. A drive motor 2 is connected to one side of the frame 1. A piston frame 3 is connected to the drive end of the drive motor 2. Multiple sets of evenly distributed piston rods 4 are inserted into the piston frame 3. The piston rods 4 are connected to an external negative pressure vacuum device. A piston head 5 is connected to the insertion end of the piston rod 4. A suction hole is opened at the bottom of the piston head 5. The external negative pressure vacuum device is connected through the piston rods 4 and the piston head 5, so that the suction hole has an adsorption effect. A mold 6 connected to the frame 1 is provided at the bottom of the piston head 5. Multiple sets of forming cups 7, which correspond one-to-one with the multiple sets of piston heads 5, are connected to the mold 6 and the corresponding side of the piston head 5.

[0027] Working principle

[0028] Material adsorption and fixation: When the equipment is started, the external negative pressure vacuum device operates, connecting the piston rod 4 with the suction hole at the bottom of the piston head 5, creating negative pressure in the suction hole. In this way, the piston head 5 can adsorb the cut single pieces of paper film or aluminum foil, completing the gripping and fixing of the packaging material.

[0029] Material Pushing and Folding: The piston head 5, which adsorbs paper film or aluminum foil, is aligned with the inlet of the forming cup body 7. The drive motor 2 is started, driving the piston frame 3 to move in a set direction. The piston frame 3 pushes the piston head 5 through the piston rod 4, pushing the adsorbed paper film or aluminum foil into the forming cup body 7. Under the constraint of the guide cavity inside the forming cup body 7, the paper film or aluminum foil is folded into a rectangular or triangular packaging container according to a predetermined shape, such as... Figure 2 As shown.

[0030] Container Transfer and Separation: As piston rod 4 and piston head 5 continue to advance, the formed packaging container is inserted into the external carrier mold. At this point, the external negative pressure vacuum device stops working, the negative pressure in the suction hole of piston head 5 disappears, and the packaging container separates from piston head 5, remaining inside the carrier mold.

[0031] Reset and prepare for the next operation: Drive motor 2 reverses, causing piston frame 3 to move in the opposite direction. Piston frame 3, through piston rod 4, pulls piston head 5 out of the supporting mold and formed cup body 7, returning it to its initial position, preparing for the next gripping and folding operation. Through this series of orderly and coherent actions, the device realizes the automated and continuous production of flexible packaging containers.

[0032] Example 2

[0033] like Figure 1 As shown, an automatic folding and forming device for flexible packaging containers includes a frame 1. A drive motor 2 is connected to one side of the frame 1. A piston frame 3 is connected to the drive end of the drive motor 2. Multiple sets of evenly distributed piston rods 4 are inserted into the piston frame 3. The piston rods 4 are connected to an external negative pressure vacuum device. A piston head 5 is connected to the insertion end of the piston rod 4. A suction hole is opened at the bottom of the piston head 5. The external negative pressure vacuum device is connected through the piston rods 4 and the piston head 5, so that the suction hole has an adsorption effect. A mold 6 connected to the frame 1 is provided at the bottom of the piston head 5. Multiple sets of forming cups 7, which correspond one-to-one with the multiple sets of piston heads 5, are connected to the mold 6 and the corresponding side of the piston head 5.

[0034] The bottom of frame 1 is equipped with shock-absorbing pads.

[0035] The advantages of the above settings are:

[0036] Reducing vibration and noise: During equipment operation, the movement and friction between components generate vibration and noise. Vibration damping pads can effectively buffer vibration, prevent it from being transmitted to the ground, reduce noise generation, create a quieter working environment, reduce interference with operators, and meet environmental protection and occupational health requirements.

[0037] Extending equipment lifespan: Continuous vibration can loosen the connections between equipment components and accelerate wear. Vibration damping pads can absorb and disperse vibration energy, reduce the stress on equipment components, extend the overall lifespan of the equipment and its components, reduce the frequency of equipment maintenance and replacement, and lower the company's operating costs.

[0038] Drive motor 2 is an adjustable speed servo motor.

[0039] The advantages of the above settings are:

[0040] Precise Positioning: Servo motors can precisely control the movement position and speed of the piston frame. During the folding and forming process of flexible packaging containers, different steps may require the piston frame to operate at specific speeds and positions. For example, when adsorbing flexible packaging materials, it is necessary to precisely control the descent speed and position of the piston head to ensure accurate adsorption. Servo motors can meet this high-precision positioning requirement.

[0041] Synchronized Operation: Adjustable-speed servo motors can achieve precise synchronization with other related equipment or processes. For example, synchronization with conveyor belts transporting flexible packaging materials ensures that the materials arrive at the folding and forming position at the appropriate time, improving production efficiency and product quality consistency.

[0042] The piston frame 3 is connected to the drive end of the drive motor 2 by a thread.

[0043] The advantages of the above settings are:

[0044] Simple structure and easy installation

[0045] Threaded connections are a common and mature mechanical connection method, characterized by their simple structure and ease of manufacturing and processing. In automated folding and forming devices for flexible packaging containers, threaded connections can reduce the manufacturing difficulty and cost of the equipment, while also facilitating installation and disassembly.

[0046] The piston frame 3 and the drive end of the drive motor 2 are connected by threads, eliminating the need for additional complex connecting parts such as couplings. This reduces the number of parts, making the overall structure of the equipment more compact and taking up less space.

[0047] High transmission precision

[0048] Threaded drives offer high transmission precision. During the movement of the piston frame 3 driven by the drive motor 2, the thread pitch remains constant. By controlling the rotation angle and number of revolutions of the drive motor 2, the movement distance and position of the piston frame 3 can be precisely controlled. This is crucial for the folding and forming process of flexible packaging containers, ensuring that the piston head 5 accurately reaches the designated position, achieving precise adsorption and folding of the flexible packaging material, thereby improving the forming accuracy and quality of the product.

[0049] Strong load-bearing capacity

[0050] Threaded connections can withstand significant axial forces. In the automatic folding and forming device for flexible packaging containers, the piston frame 3 needs to overcome certain resistances during movement, such as the friction and adhesion forces of the flexible packaging material. Threaded connections can effectively transmit the driving force of the drive motor 2 to the piston frame 3, ensuring stable movement of the piston frame 3 and preventing slippage or loosening under heavy loads, thus ensuring the normal operation of the equipment.

[0051] Good self-locking performance

[0052] Some types of threads have self-locking properties, such as triangular threads. When the drive motor 2 stops rotating, the threaded connection prevents the piston holder 3 from sliding or moving due to gravity or other external forces, allowing the piston holder 3 to remain in its current position and ensuring the stability and safety of the equipment when it is not running. This self-locking performance is crucial in the folding and forming process of flexible packaging containers, preventing equipment failure or product damage due to unexpected situations.

[0053] Easy to adjust and maintain

[0054] The position and height of the piston frame 3 can be easily adjusted by rotating the drive motor 2 or the piston frame 3. During equipment commissioning, operators can precisely adjust the initial position of the piston frame according to actual needs to adapt to different specifications of flexible packaging materials and folding requirements.

[0055] During equipment maintenance, if the piston frame 3 or the drive motor 2 malfunctions, the two can be easily separated by disassembling the threaded connection for individual repair or replacement, reducing maintenance costs and difficulty.

[0056] Example 3

[0057] like Figure 1 As shown, an automatic folding and forming device for flexible packaging containers includes a frame 1. A drive motor 2 is connected to one side of the frame 1. A piston frame 3 is connected to the drive end of the drive motor 2. Multiple sets of evenly distributed piston rods 4 are inserted into the piston frame 3. The piston rods 4 are connected to an external negative pressure vacuum device. A piston head 5 is connected to the insertion end of the piston rod 4. A suction hole is opened at the bottom of the piston head 5. The external negative pressure vacuum device is connected through the piston rods 4 and the piston head 5, so that the suction hole has an adsorption effect. A mold 6 connected to the frame 1 is provided at the bottom of the piston head 5. Multiple sets of forming cups 7, which correspond one-to-one with the multiple sets of piston heads 5, are connected to the mold 6 and the corresponding side of the piston head 5.

[0058] Piston head 5 is made of flexible material.

[0059] The advantages of the above settings are:

[0060] Adaptable to various shapes: Flexible packaging containers can come in a variety of shapes, and the flexible piston head 5 can adaptively adjust to the specific shape of the container, closely fitting its inner wall. Whether it is a regular cuboid, cylinder, or irregularly shaped packaging, it can ensure that the piston head 5 is in full contact with the inner surface of the container, thereby better completing the folding and shaping operation.

[0061] Avoid damaging the packaging: The flexible piston head can precisely fold the flexible packaging material without damaging it. Compared with the rigid piston head, it can distribute the force more evenly when pressure is applied, reducing the risk of packaging material breaking or scratching due to excessive local pressure, and helping to improve the appearance quality and pass rate of the product.

[0062] Protective Equipment: During the movement of the piston head 5, especially during high-speed operation or sudden stop, the flexible material can act as a buffer and shock absorber. It can absorb some of the impact force generated by the movement, reducing wear and impact on related components such as the piston frame 3 and drive motor 2, thereby extending the service life of the equipment and reducing maintenance costs.

[0063] Noise Reduction: The flexible piston head reduces noise generated by impacts and friction during contact and movement with flexible packaging materials. This not only helps create a quieter working environment, meeting occupational health and safety standards, but also reduces noise interference to operators and improves work efficiency.

[0064] The bottom of the piston head 5 has multiple sets of suction holes, which are arranged in an array.

[0065] The advantages of the above settings are:

[0066] Uniform force distribution: The array of suction holes ensures that the flexible packaging material is subjected to uniform suction when it is adsorbed. Each suction hole can generate suction independently, and the numerous suction holes act evenly on the flexible packaging material, avoiding situations where the local suction is too strong or too weak. This allows the flexible packaging material to be adsorbed flat on the piston head, which helps the subsequent folding process to proceed smoothly and ensures the accuracy and quality of folding.

[0067] Preventing Material Deformation: Due to uniform suction, flexible packaging materials will not experience stretching, twisting, or other deformations during the adsorption process. This uniform adsorption is particularly important for thin or easily deformable flexible packaging materials, effectively protecting the material's integrity and original shape, and improving product qualification rates.

[0068] Increased adsorption area: Multiple sets of suction holes expand the adsorption contact area between the piston head 5 and the flexible packaging material. Compared to a single or a few large suction holes, multiple small suction holes can more comprehensively cover the surface of the flexible packaging material, thereby generating greater adsorption force under the same pressure conditions, and adsorbing the flexible packaging material onto the piston head more quickly, thus improving production efficiency.

[0069] Rapid Vacuum Establishment: Multiple suction holes can operate simultaneously, accelerating the air expulsion rate between the piston head 5 and the flexible packaging material. This allows for a faster establishment of a vacuum environment and rapid adsorption. For high-speed automated flexible packaging container folding and forming production lines, this helps shorten the time of each production cycle and improve overall production efficiency.

[0070] The mold 6 is connected to the frame 1 by bolts.

[0071] The advantages of the above settings are:

[0072] The connection is stable and reliable: the bolted connection provides strong fastening force, firmly fixing the mold 6 to the frame 1. During the operation of the automatic folding and forming device for flexible packaging containers, it can withstand various forces, including pressure and impact, that the mold 6 experiences during operation, ensuring that the mold 6 will not shift or loosen, thereby guaranteeing the stability and accuracy of the folding and forming process and improving product quality.

[0073] Easy installation and disassembly: Using bolt connections, when installing mold 6, simply align mold 6 with the corresponding mounting hole on frame 1 and tighten the bolts to complete the installation; when disassembling, simply unscrew the bolts to remove mold 6 from frame 1. This method is simple to operate, requires no special tools or complex processes, facilitates the replacement, repair, and maintenance of mold 6, effectively shortens equipment downtime, and improves production efficiency.

[0074] The molded cup body 7 has a guide cavity inside, which is used to fold paper film or aluminum foil into rectangular or triangular packaging containers.

[0075] The advantages of the above settings are:

[0076] Ensuring shape accuracy: The shape and size of the guide cavity are precisely manufactured according to the design requirements of rectangular or triangular packaging containers. During the folding process, the paper film or aluminum foil is confined within the guide cavity and folded according to the preset shape, accurately forming the required rectangle or triangle. This ensures the shape accuracy and consistency of the packaging container, which helps improve the appearance quality and standardization of the product.

[0077] Controlling folding angles: For rectangular or triangular packaging containers, there are strict requirements for the angles of each corner. The guide cavity can precisely control the folding angle of the paper film or aluminum foil, ensuring that the angle of each packaging container meets the design standards, and avoiding packaging container deformation or malfunction due to inaccurate folding angles.

[0078] Simplified Operation: The presence of the guide cavity makes the folding process simpler and more direct. Operators only need to place the paper film or aluminum foil into the guide cavity of the formed cup body 7, and then use the corresponding mechanism to squeeze or fold it to complete the forming of the packaging container. Compared with manual folding or folding methods without a guide device, this greatly simplifies the operation process, reduces manual intervention, and improves production efficiency.

[0079] Rapid prototyping: The guide cavity enables rapid prototyping of paper film or aluminum foil, reducing trial and error and adjustment time during the folding process. A single insertion and operation completes the folding of a packaging container, eliminating the need for repeated adjustments and corrections, thus accelerating production speed and making it suitable for large-scale automated production.

[0080] The examples provided in this utility model are not intended to limit the implementation methods. Those skilled in the art will recognize that various variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementation methods here, and any obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. An automatic folding and forming device for flexible packaging containers, characterized in that, The device includes a frame (1), a drive motor (2) connected to one side of the frame (1), a piston frame (3) connected to the drive end of the drive motor (2), a piston rod (4) inserted into the piston frame (3), a piston rod (4) connected to an external negative pressure vacuum device, a piston head (5) connected to the insertion end of the piston rod (4), a suction hole opened at the bottom of the piston head (5), the external negative pressure vacuum device being connected through the piston rod (4) and the piston head (5) to make the suction hole have an adsorption effect, a mold (6) connected to the frame (1) is provided at the bottom of the piston head (5), and a mold (7) corresponding to the piston head (5) is connected to the corresponding side of the mold (6) and the piston head (5).

2. The automatic folding and forming device for a flexible packaging container according to claim 1, characterized in that, The bottom of the frame (1) is provided with shock-absorbing pads.

3. The automatic folding and forming device for a flexible packaging container according to claim 1, characterized in that, The drive motor (2) is a servo motor with adjustable speed.

4. The automatic folding and forming device for a flexible packaging container according to claim 1, characterized in that, The piston frame (3) is connected to the drive end of the drive motor (2) by a thread.

5. The automatic folding and forming device for a flexible packaging container according to claim 1, characterized in that, The piston head (5) is made of flexible material.

6. The automatic folding and forming device for a flexible packaging container according to claim 5, characterized in that, The bottom of the piston head (5) has multiple sets of suction holes, which are arranged in an array.

7. The automatic folding and forming device for a flexible packaging container according to claim 1, characterized in that, The mold (6) is connected to the frame (1) by bolts.

8. The automatic folding and forming device for a flexible packaging container according to claim 1, characterized in that, The molded cup body (7) has a guide cavity inside, which is used to fold paper film or aluminum foil into rectangular or triangular packaging containers.

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