A packaging bag flattening device

Abstract

This utility model discloses a packaging bag flattening device, relating to the field of packaging bag technology. It includes a base plate with multiple vertical rods fixed to its top, a mounting plate fixed to the top of each vertical rod, a power assembly mounted on the mounting plate, and multiple pressure plates slidably connected to the vertical rods. The power assembly is fixedly connected to the topmost pressure plate. The device also includes: several limiting components that slide sequentially through the mounting plate and the multiple pressure plates from top to bottom, and are inserted into the front end of the base plate; and several positioning components that slide through the multiple pressure plates and are fixedly connected to the base plate, corresponding to the left, right, and rear ends of the base plate. This utility model, through the limiting and positioning components located between the base plate and the pressure plates, can constrain and position stacked packaging bags in multiple directions (such as front, back, left, and right) during placement and flattening, effectively preventing misalignment between adjacent packaging bags.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, and in particular to a packaging bag flattening device. Background Technology

[0002] In the manufacturing process of packaging bags, in order to reduce the space occupied during transportation and storage and improve the flatness of the packaging bags, they usually need to be flattened or pressed after production. Patent application CN210680863U discloses a pressing device for stacking packaging bags. This device can not only flatten or press the packaging bags, but also has a transportation function, thus meeting production needs to a certain extent.

[0003] However, the inventors of this application have discovered a significant drawback in the prior art: due to the lack of an effective positioning mechanism, misalignment (e.g., front-to-back, left-to-right, or angular displacement) easily occurs between adjacent bags during the pressing process, when stacking multiple layers of packaging bags onto the base plate or pressure plate and performing the flattening operation. This misalignment prevents the edges or localized areas of the misaligned bags from fully contacting other bags or the pressure plate during the pressing process, making it difficult to effectively flatten the misaligned areas. When the stack of bags is removed after pressing, these unflattened misaligned areas result in poor flatness of the entire packaging bag, affecting not only the product's appearance but also potentially impacting subsequent packaging, transportation, and user experience, thus reducing the product's market competitiveness.

[0004] Therefore, there is an urgent need to develop a packaging bag flattening device that can effectively prevent misalignment of packaging bags during the flattening process and ensure the flattening effect. Utility Model Content

[0005] This invention addresses the problem of poor flatness after flattening caused by the lack of an effective positioning mechanism in existing packaging bag flattening equipment by providing a packaging bag flattening device. This device, through limiting and positioning components set between the base plate and the pressure plate, can constrain and position stacked packaging bags in multiple directions (such as front, back, left, and right) during placement and flattening, effectively preventing misalignment between adjacent packaging bags and ensuring that all edges and areas of the packaging bags receive uniform and effective flattening treatment, thereby significantly improving the overall flatness of the flattened packaging bags.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This utility model discloses a packaging bag flattening device, comprising a base plate, a plurality of vertical rods fixed to the top of the base plate, an mounting plate fixed to the top of the vertical rods, a power assembly mounted on the mounting plate, a plurality of pressure plates slidably connected to the vertical rods, and the power assembly being fixedly connected to the topmost pressure plate. It also includes: A plurality of limiting components are provided, which slide through the mounting plate and the plurality of pressure plates from top to bottom, and the plurality of limiting components are inserted into the front end of the base plate; The positioning component slides through multiple pressure plates and is fixedly connected to the base plate. Multiple positioning components are provided, each corresponding to the left, right and rear ends of the base plate.

[0007] Optionally, the limiting component includes a limiting part that slides through the mounting plate and multiple pressure plates from top to bottom; the top surface of the front end of the base plate has a slot corresponding to each limiting part, and the slot is inserted into the limiting part.

[0008] Optionally, the limiting component is a rod-column structure or a plate structure.

[0009] Optionally, the positioning assembly includes a positioning component that slides through multiple pressure plates and is fixedly connected to the base plate; bolts are threaded onto the pressure plates, and the bolts abut against the vertical rod.

[0010] Optionally, the positioning component is a rod-column structure or a plate structure.

[0011] Optionally, the positioning component includes multiple positioning plates, and each positioning plate of the positioning component is configured to correspond one-to-one with the pressure plate. The positioning plate slides through the corresponding pressure plate; adjacent positioning plates slide together. The top of the topmost positioning plate is fixedly connected to a first limiting post for receiving the top surface of the topmost pressure plate; The bottom end of the lowest positioning plate is fixedly connected to the base plate, and the other positioning plates are fixedly connected to the top surface of the pressure plate located below them; The positioning plate has folded edges on both sides, and the folded edges of adjacent positioning plates slide together; the vertical end faces of the folded edges in the same positioning component are on the same vertical plane.

[0012] Optionally, the inner side of the folded edge of the positioning plate is provided with a vertical sliding groove, and a second limiting post is slidably connected to the sliding groove. The second limiting post is fixed to the top of the outer side of the adjacent slidingly fitted folded edge, and the second limiting post is used to support the pressure plate below it; the first limiting post is fixedly connected to the folded edge of the topmost positioning plate.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are as follows: Effectively prevents misalignment: Limiting components at the front and positioning components at the left, right, and rear effectively constrain the packaging bag in four directions. During the placement of the packaging bag and the lowering and pressing of the pressure plate, these components position the edges of each layer of packaging bag, preventing horizontal misalignment or displacement.

[0014] Improved flattening effect: Because the packaging bag is positioned and there is no misalignment, the entire surface of the packaging bag, especially the edge area, can withstand pressure during the pressing process, ensuring that each layer of packaging bag can be fully and effectively flattened.

[0015] Ensuring flatness: After flattening, the overall flatness of the packaging bag is significantly improved, with neat edges and no warping or local bulging, greatly enhancing the appearance quality and consistency of the product. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the main structure of Embodiment 1 of this utility model; Figure 2 This is a schematic diagram of the main structure of Embodiment 2 of this utility model; Figure 3 This is a schematic diagram of the left side of Embodiment 2 of the present invention; Figure 4 This is a half-sectional view of Embodiment 2 of the present invention. Figure 5 This is a top view of the positioning component of Embodiment 2 of the present invention; Figure 6 This is a side view of the positioning component in Embodiment 2 of the present invention. Figure 7 This is a schematic diagram of the working state structure of Embodiment 2 of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 100, base plate; 200, vertical rod; 300, pressure plate; 400, limiting component; 500, positioning component; 600, positioning plate; 610, folded edge; 620, first limiting post; 621, sliding groove; 622, second limiting post; 700, electric telescopic rod; 800, lifting plate; 900, packaging bag. Detailed Implementation

[0019] The core of this utility model is to provide a packaging bag flattening device. This device, through the limiting component and positioning component set between the base plate and the pressure plate, can constrain and position the stacked packaging bags in multiple directions (such as front, back, left and right) during the placement and flattening process, effectively preventing misalignment between adjacent packaging bags, ensuring that each edge and area of ​​the packaging bag can be flattened evenly and effectively, thereby significantly improving the overall flatness of the flattened packaging bag.

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "setting", "installing", "connecting", "joining", "fixing", "sleeving", 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 connection of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0022] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this utility model.

[0023] Example 1 In this specific embodiment, a base plate 100 is included. Multiple vertical rods 200 are fixed to the top of the base plate 100, and a mounting plate is fixed to the top of each vertical rod 200. A power assembly is mounted on the mounting plate, and multiple pressure plates 300 are slidably connected to the vertical rods 200. The power assembly includes an electric telescopic rod 700 and a lifting plate 800. The electric telescopic rod 700 is fixedly connected to the mounting plate, and the lifting plate 800 is fixedly connected to the telescopic end of the electric telescopic rod 700. The lifting plate 800 is fixedly connected to the topmost pressure plate 300 by bolts. Furthermore, referring to the applicant's patent publication number CN210680863U, a battery and controller can be mounted on the mounting plate. The battery supplies power to the controller and the electric telescopic rod 700, and the controller controls the extension and retraction of the electric telescopic rod 700, thereby achieving the raising and lowering of the lifting plate 800.

[0024] Also includes: The limiting components are provided in several parts, which slide through the mounting plate and multiple pressure plates 300 from top to bottom, and the limiting components are connected to the front end of the base plate 100. Figure 1 (Interlocking on the observer side); After placing the packaging bag 900, install the upper limit component to constrain the position of the packaging bag 900 in the front direction and prevent the packaging bag 900 from being misaligned during the flattening or tightening process.

[0025] The positioning component slides through multiple pressure plates 300 and is fixedly connected to the base plate 100. Multiple components are provided and are set one by one with the left, right and rear ends of the base plate 100. During the placement of the packaging bag 900, it is used to constrain the position of the packaging bag 900 in the left, right and rear end directions, thereby positioning the packaging bag 900 and preventing misalignment during placement.

[0026] In this specific embodiment, the limiting component includes a limiting part 400, which slides through the mounting plate and multiple pressure plates 300 from top to bottom; the top surface of the front end of the base plate 100 is provided with slots corresponding to the limiting parts 400, and the slots are inserted into the limiting parts 400.

[0027] In this specific embodiment, the limiting component 400 is a rod-column structure or a plate structure.

[0028] In this specific embodiment, the positioning component includes a positioning part 500, which slides through multiple pressure plates 300 and is fixedly connected to the base plate 100 (e.g., by welding or bolting). Bolts are threaded onto the pressure plates 300, and the bolts abut against the vertical rod 200 to fix the height of the pressure plates 300. These bolts are mainly used to fix the position of the pressure plates 300 in a non-compressed state. For example, when placing the packaging bag 900, there should be a certain gap between adjacent pressure plates 300 and between the lowest pressure plate 300 and the base plate 100. After placing the packaging bag 900, the bolts are loosened.

[0029] Work process: 1. Lift the limiting component 400 upwards to disengage it from the base plate 100, pressure plate 300, and mounting plate.

[0030] 2. The packaging bags 900 to be flattened are stacked layer by layer from the front end onto the base plate 100 and the pressure plate 300. During the placement of the packaging bags 900, the positioning component 500 is used to constrain the position of the packaging bags 900 in the left, right and rear directions respectively, thereby positioning the packaging bags 900 and avoiding misalignment during placement.

[0031] 3. Slide the limiting component 400 from top to bottom through the pre-drilled hole in the mounting plate and the through hole at the corresponding position of the front end of the pressure plate 300, and insert it into the slot of the base plate 100. At this time, the front end of the stack of packaging bags is constrained by the limiting component 400, and the left, right and rear ends are constrained by the corresponding positioning components 500, to prevent misalignment during the flattening or tightening process.

[0032] 4. Loosen the bolts that abut against the vertical rod 200.

[0033] 5. Start the electric telescopic rod 700, the lifting plate 800 and the top pressure plate 300 fixedly connected to it move downwards. The pressure will be transmitted downwards layer by layer through the pressure plate 300, and finally all the packaging bags 900 will be pressed tightly and kept for a certain period of time, such as 20 minutes. The appropriate time can be determined through multiple tests according to the specific properties of the materials.

[0034] 6. After flattening, the electric telescopic rod 700 retracts, driving the top pressure plate 300 to rise, lifting the other pressure plates 300 and abutting their bolts against the vertical rod 200; then the limiting component 400 is lifted upward again, so that it is separated from the base plate 100, pressure plate 300 and mounting plate.

[0035] 7. Remove the packaging bag 900.

[0036] In this specific embodiment, the positioning component 500 is a rod-column structure or a plate structure.

[0037] Example 2 The main difference between this embodiment and Embodiment 1 is the positioning component.

[0038] In this specific embodiment, the positioning component includes multiple positioning plates 600. Each positioning plate 600 of the positioning component is correspondingly set with a pressure plate 300. The positioning plate 600 slides through the corresponding pressure plate 300; adjacent positioning plates 600 slide together. The top of the top positioning plate 600 is fixedly connected to a first limiting post 620 for receiving the top surface of the top pressure plate 300. The bottom of the bottom positioning plate 600 is fixedly connected to the bottom plate 100, and the other positioning plates 600 except the bottom positioning plate 600 are fixedly connected to the top surface of the pressure plate 300 located below them. The positioning plate 600 has folded edges 610 on both sides (forming a U-shaped cross section), and the folded edges 610 of adjacent positioning plates 600 are slidably engaged; the vertical end faces of the folded edges 610 of all positioning plates 600 in the same positioning component (i.e. located on the same side, such as the left, right or rear side) are on the same vertical plane (i.e. the outer surfaces of the folded edges 610 are coplanar).

[0039] In this specific embodiment, except for the bottommost positioning plate 600, the inner side of the folded edge 610 of the other positioning plates 600 is provided with a vertical sliding groove 621. Obviously, it is not necessary to provide a sliding groove 621 for the bottommost positioning plate 600. A second limiting post 622 is slidably connected to the sliding groove 621. The second limiting post 622 is fixed to the top of the outer side of the adjacent slidingly fitted folded edge 610. The second limiting post 622 is used to support the pressure plate 300 below it. That is, since "the other positioning plates 600 are fixedly connected to the top surface of the pressure plate 300 below them" and the pressure plate 300 does not have a sliding groove 621, after flattening, when the telescopic end of the electric telescopic rod 700 retracts, the second limiting post 622 can support the top surface of the pressure plate 300. The first limiting post 620 is fixedly connected to the folded edge 610 of the topmost positioning plate 600.

[0040] Work process: 1. Before placing the packaging bag 900, each pressure plate 300 and positioning plate 600 is in the raised state, that is, the electric telescopic rod 700 is in the retracted state, the first limiting post 620 is supported on the topmost pressure plate 300, and the second limiting post 622 is supported on the corresponding pressure plate 300; at this time, the limiting component 400 is not installed.

[0041] 2. The packaging bags 900 to be flattened are stacked layer by layer from the front end onto the base plate 100 and the pressure plate 300. During the placement of the packaging bags 900, the positioning component 500 is used to constrain the position of the packaging bags 900 in the left, right and rear directions respectively, thereby positioning the packaging bags 900 and avoiding misalignment during placement.

[0042] 3. Slide the limiting component 400 from top to bottom through the pre-drilled hole in the mounting plate and the through hole at the corresponding position of the front end of the pressure plate 300, and insert it into the slot of the base plate 100. At this time, the front end of the stack of packaging bags is constrained by the limiting component 400, and the left, right, and rear ends are constrained by the vertical end faces of the folded edges 610 of the corresponding positioning components 500, preventing misalignment during the flattening or tightening process.

[0043] 4. Start the electric telescopic rod 700. The lifting plate 800 and the top pressure plate 300 and other pressure plates 300 fixedly connected to it move downwards. When the bottom pressure plate 300 rests on the packaging bag 900 on the base plate 100, it stops moving downwards. When the pressure plate 300 above the bottom pressure plate 300 rests on the packaging bag 900 on the bottom pressure plate 300, the pressure plate 300 above the bottom pressure plate 300 stops moving downwards. Similarly, when the top pressure plate 300 rests on the packaging bag below it, the telescopic end of the electric telescopic rod 700 continues to extend. The pressure will be transmitted downwards layer by layer through the pressure plates 300, eventually pressing all the packaging bags 900 tightly and maintaining this position for a certain period of time, such as 20 minutes. The appropriate time can be determined through multiple tests based on the specific properties of the materials.

[0044] 5. After flattening, the telescopic end of the electric telescopic rod 700 retracts, causing the topmost pressure plate 300 to rise. When the topmost pressure plate 300 abuts against the first limiting post 620, the topmost pressure plate 300, through the first limiting post 620, causes the topmost positioning plate 600 and the pressure plate 300 below the topmost pressure plate 300 to rise. Similarly, the electric telescopic rod 700 stops when the bottommost second limiting post 622 contacts the top surface of the bottommost pressure plate 300. The limiting component 400 is then lifted upwards to separate it from the base plate 100, the pressure plate 300, and the mounting plate.

[0045] 6. Remove the packaging bag 900.

[0046] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0047] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A packaging bag flattening device, comprising a base plate (100), wherein a plurality of vertical rods (200) are fixed to the top of the base plate (100), a mounting plate is fixed to the top of the vertical rods (200), a power assembly is mounted on the mounting plate, and a plurality of pressure plates (300) are slidably connected to the vertical rods (200), characterized in that, The power assembly is fixedly connected to the topmost pressure plate (300), and also includes: A limiting component is provided, which slides through the mounting plate and multiple pressure plates (300) from top to bottom, and the limiting components are inserted into the front end of the base plate (100); The positioning component slides through multiple pressure plates (300) and is fixedly connected to the base plate (100). Multiple positioning components are provided and are provided one-to-one with the left end, right end and rear end of the base plate (100).

2. The packaging bag flattening device according to claim 1, characterized in that: The limiting component includes a limiting part (400), which slides through the mounting plate and multiple pressure plates (300) from top to bottom; the front top surface of the base plate (100) is provided with a slot corresponding to the limiting part (400), and the slot is inserted into the limiting part (400).

3. The packaging bag flattening device according to claim 2, characterized in that: The limiting component (400) is a rod-column structure or a plate structure.

4. The packaging bag flattening device according to claim 1, characterized in that: The positioning assembly includes a positioning component (500), which slides through multiple pressure plates (300) and is fixedly connected to the base plate (100); the pressure plates (300) are threaded with bolts, which abut against the vertical rod (200).

5. The packaging bag flattening device according to claim 4, characterized in that: The positioning component (500) is a rod-column structure or a plate structure.

6. The packaging bag flattening device according to claim 1, characterized in that: The positioning component includes multiple positioning plates (600), and each positioning plate (600) of the positioning component is correspondingly arranged with the pressure plate (300). The positioning plate (600) slides through the corresponding pressure plate (300); adjacent positioning plates (600) slide together. The top of the topmost positioning plate (600) is fixedly connected to a first limiting post (620) for receiving the top surface of the topmost pressure plate (300). The bottom end of the positioning plate (600) at the bottommost end is fixedly connected to the bottom plate (100), and the other positioning plates (600) are fixedly connected to the top surface of the pressure plate (300) located below them; The positioning plate (600) has folded edges (610) on both sides, and the folded edges (610) of adjacent positioning plates (600) are slidably engaged; the vertical end faces of the folded edges (610) in the same positioning component are on the same vertical plane.

7. The packaging bag flattening device according to claim 6, characterized in that: The inner side of the folded edge (610) of the positioning plate (600) is provided with a vertical sliding groove (621). A second limiting post (622) is slidably connected to the sliding groove (621). The second limiting post (622) is fixed to the top of the outer side of the adjacent slidingly fitted folded edge (610). The second limiting post (622) is used to support the pressure plate (300) below it. The first limiting post (620) is fixedly connected to the folded edge (610) of the topmost positioning plate (600).

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