A film winding forming mechanism and a film winding packaging machine
By introducing a movable baffle and a drive device into the film forming mechanism, the problem of packaging bag breakage caused by large drop in the forming cylinder was solved, achieving good sealing performance and extended shelf life of the packaging bag.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QIAQIA FOOD CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
AI Technical Summary
In the existing technology, the distance from the forming position to the outlet in the forming cylinder of the roll forming mechanism is relatively long and the drop is large. The sharp points of the nuts can puncture the packaging bag, which will damage the sealing of the packaging bag and affect the shelf life of the nuts inside the packaging bag.
Design a roll film forming mechanism, including a forming cylinder and a movable baffle. By setting a side partition and a driving device inside the forming cylinder, the movable baffle switches between different working positions, separating the inner cavity of the forming cylinder and reducing the drop difference of the packaging bag. A linear drive component and a transmission component are used to realize the movement of the movable baffle, ensuring that the packaging bag falls smoothly after sealing.
It effectively reduces the impact of the packaging bag falling, prevents the sharp points of nuts from puncturing the packaging bag, ensures the airtightness of the packaging bag, and extends the shelf life of the materials inside the packaging bag.
Smart Images
Figure CN224324187U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food packaging equipment technology, specifically to a roll film forming mechanism and a roll film packaging machine. Background Technology
[0002] In the food industry, food is typically packaged to protect it from dust, bacteria, and other contaminants from the external environment. Automation in the packaging machinery industry is transforming the way packaging processes are conducted and how packaging containers and materials are processed. Automated packaging systems can significantly improve production efficiency and product quality.
[0003] The utility model patent applied for by the applicant on July 28, 2020, with publication number CN213057678U, discloses a roll film forming device and a roll film packaging machine. It abandons the method of setting a nitrogen replenishment pipe separately in the forming cylinder, and divides the forming cylinder into two layers, including a first cylinder and a second cylinder nested in the first cylinder; and sets an exhaust pipe in the second cylinder, and fills the packaging roll film with nitrogen through multiple sets of exhaust pipe outlets, thereby reducing the instantaneous pressure when the gas is discharged from the outlet, reducing the impact force generated by nitrogen in the packaging roll film, avoiding damage to the packaging film caused by excessive instantaneous pressure at the outlet, and preventing powder from being discharged from the packaging bag, thus affecting the product loading capacity.
[0004] The packaging machines described in the aforementioned patent documents are primarily used for powder packaging. However, when packaging spiky nut products such as pecans, the roll film is formed into a bag shape within the forming cylinder to hold the nuts. After sealing, the bag-shaped roll film containing the nuts falls entirely from the outlet of the forming cylinder. Since the distance from the forming position to the outlet within the forming cylinder is relatively long, resulting in a significant drop, the sharp edges of the nuts can puncture the packaging bag, compromising its seal and affecting the shelf life of the nuts inside. Utility Model Content
[0005] The purpose of this invention is to provide a roll film forming mechanism and a roll film packaging machine, which solves the problem in the prior art that the distance from the forming position to the outlet in the forming cylinder of the roll film forming mechanism is long and the drop is large, which causes the sharp points of nuts to puncture the packaging bag and damage the sealing of the packaging bag.
[0006] To achieve the above objectives, this utility model provides a roll film forming mechanism, including a forming cylinder and a feeding hopper disposed at the top of the forming cylinder. A forming collar is disposed on the outer side of the forming cylinder near the feeding hopper. A movable baffle is disposed inside the forming cylinder, and the movable baffle is located between the forming collar and the square interface of the forming cylinder. A first working position and a second working position are disposed inside the forming cylinder. When the movable baffle is located in the first working position, it seals the inner cavity of the forming cylinder. When the movable baffle is located in the second working position, it opens the inner cavity of the forming cylinder.
[0007] Furthermore, the inside of the forming cylinder is provided with a side partition, which is arranged along the axial direction of the forming cylinder, and the length of the side partition is less than the axial length of the forming cylinder; one side of the movable baffle is rotatably connected to the end of the side partition through a transition shaft.
[0008] Furthermore, the side partition divides the inner cavity of the cylinder into a first inner cavity and a second inner cavity. The movable baffle is connected to the driving device through the second inner cavity. The driving device drives the movable baffle to rotate around the transition shaft. When the movable baffle rotates to the first working position, it seals the first inner cavity.
[0009] Furthermore, the driving device includes a linear drive assembly and a transmission assembly. The linear drive assembly is located outside the forming cylinder. One end of the transmission assembly is connected to the output end of the linear drive assembly, and the other end passes through the second inner cavity and is connected to the movable baffle.
[0010] Furthermore, the volume of the second inner cavity is smaller than the volume of the first inner cavity.
[0011] Furthermore, the linear drive assembly is a hydraulic cylinder, an electric push rod, or a pneumatic cylinder; the transmission assembly includes a first transmission rod, a second transmission rod, and a third transmission rod, the second transmission rod being arranged along the length of the entire second inner cavity, the first transmission rod being located outside the forming cylinder and having one end rotatably connected to the output end of the linear drive assembly, and the other end rotatably connected to one end of the second transmission rod; one end of the third transmission rod is connected to a movable baffle, and the other end is rotatably connected to the other end of the second transmission rod.
[0012] Furthermore, the square interface is a trumpet-shaped cylindrical structure that is wider at the top and narrower at the bottom.
[0013] Furthermore, a side plate is provided on each of the opposite sides of the lower end of the square interface, and the side plate is rotatably connected to the lower end of the square interface.
[0014] Furthermore, a transition connector is provided inside the forming cylinder near the square interface, and the transition connector is a through structure in the middle.
[0015] This utility model also provides a roll film packaging machine, including the above-mentioned roll film forming mechanism.
[0016] Compared with existing known technologies, the technical solution provided by this utility model has the following beneficial effects:
[0017] This utility model discloses a roll film forming mechanism. When the movable baffle is in the first working position, it seals the inner cavity of the forming cylinder. The position of the movable baffle divides a long section of the forming cylinder into two relatively short sections, and packaging bags containing materials such as pecans are intercepted at the movable baffle position. When sealing the packaging bag containing materials, the movable baffle simultaneously switches to the second working position, opening the inner cavity of the forming cylinder. The sealed packaging bag containing materials falls from the movable baffle position to the outlet to await collection or proceed to the next process. The presence of the movable baffle reduces the drop height of the packaging bag containing materials, reducing the impact on the packaging bag. Even materials such as pecans will not damage the packaging bag, ensuring a good seal and extending the shelf life of the materials inside.
[0018] It is obvious that the elements or features described in the above individual embodiments can be used alone or in combination in other embodiments. Attached Figure Description
[0019] The dimensions and scales in the accompanying drawings do not represent the actual dimensions and scales of the product. The drawings are for illustrative purposes only, and some non-essential elements or features have been omitted for clarity.
[0020] Figure 1 This is a schematic diagram of the structure of the film forming mechanism (with the movable baffle located at the first station) in an embodiment of this utility model;
[0021] Figure 2 This is a schematic diagram of the film forming mechanism (with the movable baffle located at the second station) in an embodiment of this utility model.
[0022] Figure 3 This is a schematic diagram of the transmission component in an embodiment of this utility model.
[0023] Explanation of reference numerals in the attached figures
[0024] 100. Forming cylinder; 110. First inner cavity; 120. Second inner cavity; 130. Side partition; 140. Square interface; 150. Transition connector; 200. Forming collar; 300. Movable baffle; 310. Adapter shaft; 400. Feed hopper; 500. Side plate; 600. Drive device; 610. Linear drive assembly; 620. Transmission assembly; 621. First transmission rod; 622. Second transmission rod; 623. Third transmission rod. Detailed Implementation
[0025] The present invention will now be described in detail with reference to the accompanying drawings. The embodiments described herein are merely preferred embodiments of the present invention. Those skilled in the art can conceive of other ways to implement the present invention based on the preferred embodiments, and such other ways also fall within the scope of the present invention.
[0026] Reference Figures 1-3 This application provides a film forming mechanism, mainly used for packaging pecans. It includes a forming cylinder 100 and a feeding hopper 400 located at the top of the forming cylinder 100. A forming collar 200 is provided on the outside of the forming cylinder 100 near the feeding hopper 400. The film is formed into a cylindrical packaging bag containing the material within the forming cylinder 100 through the forming collar 200. The forming collar 200 is relatively mature in the prior art and will not be described in detail here. Pecans enter the forming cylinder 100 through the feeding hopper 400 and fall into the cylindrical packaging bag formed by the film. A movable baffle 300 is provided inside the forming cylinder 100, located between the forming collar 200 and the square interface 140 of the forming cylinder 100. The forming cylinder 100 has a first working position and a second working position. When the movable baffle 300 is in the first working position, it seals the inner cavity of the forming cylinder 100; when the movable baffle 300 is in the second working position, it opens the inner cavity of the forming cylinder 100. When the movable baffle 300 is in the first working position, it seals the inner cavity of the forming cylinder 100. The position of the movable baffle 300 divides a relatively long section of the forming cylinder 100 into two relatively short sections, trapping packaging bags containing materials such as pecans at the movable baffle 300 position. When sealing the packaging bags containing materials, the movable baffle 300 simultaneously switches to the second working position, opening the inner cavity of the forming cylinder 100. The sealed packaging bags containing materials fall from the movable baffle 300 position to the outlet to await collection or proceed to the next process. The presence of the movable baffle 300 reduces the drop height of the packaging bags containing materials, reducing the impact on the packaging bags. Even materials such as pecans will not damage the packaging bags, ensuring a good seal and extending the shelf life of the materials inside.
[0027] It should be noted that in this embodiment, one movable baffle 300 is provided, located near the middle of the length of the forming cylinder 100. The number of movable baffles 300 is not limited, and one or more can be selected according to the specific length of the forming cylinder 100. The purpose is to reduce the drop difference of the sealed packaging bag.
[0028] The movable baffle 300 switches between the first and second workstations primarily based on its own mechanical connection structure, such as... Figure 1 As shown, in some embodiments, a side partition 130 is provided inside the forming cylinder 100. The side partition 130 is arranged along the axial direction of the forming cylinder 100, and one side of the movable baffle 300 is rotatably connected to the end of the side partition 130 via a transition shaft 310. The length of the side partition 130 is less than the axial length of the forming cylinder 100, which can ensure that the movable baffle 300 is in a reasonable position inside the cylinder, and can divide the cylinder into two shorter sections, so that the drop difference is reasonable.
[0029] Understandably, the position switching of the movable baffle 300 requires external force, such as... Figure 1 As shown, the side partition 130 divides the inner cavity of the cylinder into a first inner cavity 110 and a second inner cavity 120. A movable baffle 300 is connected to the drive device 600 through the second inner cavity 120. The drive device 600 drives the movable baffle 300 to rotate around the adapter shaft 310. When the movable baffle 300 rotates to the first working position, it seals the first inner cavity 110. The side partition 130 serves two purposes: firstly, it acts as a mounting carrier for the movable baffle 300; secondly, it partitions the inner cavity of the cylinder, separating the drive device 600 from the material packaging, thus preventing the drive device 600 from interfering with the inner cavity of the material packaging. The volume of the second inner cavity 120 is smaller than that of the first inner cavity 110, prioritizing the space available for material packaging and ensuring packaging efficiency.
[0030] There are many driver structures to choose from for the active baffle 300, specifically, such as... Figure 1 and Figure 3 As shown, in some embodiments, the drive device 600 includes a linear drive assembly 610 and a transmission assembly 620. The linear drive assembly 610 is located outside the forming cylinder 100. One end of the transmission assembly 620 is connected to the output end of the linear drive assembly 610, and the other end passes through the second inner cavity 120 and is connected to the movable baffle 300. The linear drive assembly 610 is a hydraulic cylinder, an electric actuator, or a pneumatic cylinder. The transmission assembly 620 includes a first transmission rod 621, a second transmission rod 622, and a third transmission rod 623. The second transmission rod 622 is arranged along the length of the entire second inner cavity 120. The first transmission rod 621 is located outside the forming cylinder 100, with one end rotatably connected to the output end of the linear drive assembly 610 and the other end rotatably connected to one end of the second transmission rod 622. One end of the third transmission rod 623 is connected to the movable baffle 300, and the other end is rotatably connected to the other end of the second transmission rod 622. When the linear drive assembly 610 retracts, it drives the second transmission rod 622 downward, causing the end of the third transmission rod 623 connected to the movable baffle 300 to tilt upward, thus moving the movable baffle 300 towards the first station and ultimately sealing the inner cavity of the cylinder. Similarly, when the linear drive assembly 610 extends, the movable baffle 300 moves towards the second station, opening the inner cavity of the cylinder.
[0031] Furthermore, in some embodiments, such as Figure 1As shown, the square interface 140 is a funnel-shaped cylindrical structure, wider at the top and narrower at the bottom. The square interface 140 is used to shape the cylindrical bag formed by the rolled film into a rectangular bag. Side plates 500 are provided on opposite sides of the lower end of the square interface 140. The side plates 500 are rotatably connected to the lower end of the square interface 140, and can move closer together under external force. The side plates 150 can further transform the packaging bag from a circle to a rectangle. When the two side plates 150 move closer together, they create a certain slope, which can partially cushion the material, reduce the impact of falling material, and further protect the sealing of the packaging bag. A transition connector 150 is provided inside the forming cylinder 100 near the square interface 140. The transition connector 150 has a through-type structure in the middle. The upper end of the transition connector 150 is connected and communicates with the forming cylinder 100, and the lower end is connected and communicates with the square interface 140. The upper port diameter of the transition connector 150 is small, allowing it to extend into the interior of the forming cylinder 100.
[0032] This application also provides a roll film packaging machine, including the above-mentioned roll film forming mechanism.
[0033] In the description of this utility model, it should be noted that the terms "front," "rear," "left," "right," "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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 on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0034] 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.
[0035] The scope of protection of this utility model is defined only by the claims. Thanks to the teachings of this utility model, those skilled in the art will readily recognize that alternative structures to the disclosed structure can be used as feasible alternative implementations, and that the disclosed implementations can be combined to produce new implementations, which also fall within the scope of the appended claims.
Claims
1. A roll film forming mechanism, comprising a forming cylinder (100) and a feed hopper (400) disposed at the top of the forming cylinder (100), wherein a forming collar (200) is provided on the outer side of the forming cylinder (100) near the feed hopper (400); characterized in that, The molding cylinder (100) is provided with a movable baffle (300) inside, which is located between the molding collar (200) and the square interface (140) of the molding cylinder (100). The molding cylinder (100) is provided with a first working position and a second working position. When the movable baffle (300) is in the first working position, it blocks the inner cavity of the molding cylinder (100). When the movable baffle (300) is in the second working position, it opens the inner cavity of the molding cylinder (100).
2. The film forming mechanism according to claim 1, characterized in that, The molding cylinder (100) is provided with a side partition (130) inside. The side partition (130) is arranged along the axial direction of the molding cylinder (100), and the length of the side partition (130) is less than the axial length of the molding cylinder (100). One side of the movable baffle (300) is rotatably connected to the end of the side partition (130) through a transition shaft (310).
3. The film forming mechanism according to claim 2, characterized in that, The side partition (130) divides the inner cavity of the cylinder into a first inner cavity (110) and a second inner cavity (120). The movable baffle (300) is connected to the drive device (600) through the second inner cavity (120). The drive device (600) drives the movable baffle (300) to rotate around the adapter shaft (310). When the movable baffle (300) rotates to the first working position, it blocks the first inner cavity (110).
4. The film forming mechanism according to claim 3, characterized in that, The drive device (600) includes a linear drive assembly (610) and a transmission assembly (620). The linear drive assembly (610) is located outside the forming cylinder (100). One end of the transmission assembly (620) is connected to the output end of the linear drive assembly (610), and the other end passes through the second inner cavity (120) and is connected to the movable baffle (300).
5. A film forming mechanism according to claim 4, characterized in that, The volume of the second inner cavity (120) is smaller than the volume of the first inner cavity (110).
6. A film forming mechanism according to claim 4, characterized in that, The linear drive assembly (610) is a hydraulic cylinder, an electric push rod, or a pneumatic cylinder; the transmission assembly (620) includes a first transmission rod (621), a second transmission rod (622), and a third transmission rod (623). The second transmission rod (622) is arranged along the length of the entire second inner cavity (120). The first transmission rod (621) is located outside the forming cylinder (100) and one end is rotatably connected to the output end of the linear drive assembly (610), and the other end is rotatably connected to one end of the second transmission rod (622). One end of the third transmission rod (623) is connected to the movable baffle (300), and the other end is rotatably connected to the other end of the second transmission rod (622).
7. A film forming mechanism according to claim 1, characterized in that, The square interface (140) is a trumpet-shaped cylindrical structure that is larger at the top and smaller at the bottom.
8. A film forming mechanism according to claim 7, characterized in that, The square interface (140) has side plates (500) on each of its opposite sides at the lower end, and the side plates (500) are rotatably connected to the lower end of the square interface (140).
9. A film forming mechanism according to claim 7, characterized in that, A transition connector (150) is provided inside the forming cylinder (100) near the square interface (140), and the transition connector (150) has a through structure in the middle.
10. A roll film packaging machine, characterized in that, Includes the film forming mechanism according to any one of claims 1-9.