Packaging bag opening folding device

Abstract

The utility model belongs to the technical field of packaging bag opening folding equipment, and particularly relates to a packaging bag opening folding device which comprises an L-shaped placing plate and a folding plate rotationally connected through a hinge, the inner side wall of the L-shaped placing plate is rotationally connected with a rotating rod through a bearing, the periphery of the rotating rod is sleeved with a guide roller which is used for guiding and rolling a packaging bag, and the folding plate is arranged on the L-shaped placing plate. A reset mechanism is connected between the L-shaped placing plate and the turnover plate; the end of the rotating rod is connected with an anti-disengaging assembly used for limiting disengaging of the guide roller. The reset mechanism comprises a U-shaped block fixedly connected to the surface of the turnover plate and a strip-shaped groove formed in the surface of the upper end of the L-shaped placing plate, and through the ingenious design of the L-shaped placing plate and the turnover plate and the assistance of the guide roller, the device can achieve preliminary folding preparation of a packaging bag opening; and meanwhile, the bent guide plate and the limiting ring piece are additionally arranged, so that the packaging bag can keep a stable advancing path in the folding process.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag mouth folding equipment, in particular to a packaging bag mouth folding device. Background Art

[0002] In the packaging manufacturing industry, folding the bag opening is a critical step in ensuring a neat product appearance and improving packaging efficiency. Traditionally, this step relies heavily on manual labor, which is not only time-consuming and labor-intensive, but also limited by the operator's skill level and physical condition, making it difficult to ensure consistent and precise folding. Furthermore, with market demands for packaging efficiency and quality continuously increasing, manual folding methods are no longer able to meet the needs of large-scale, high-efficiency production.

[0003] To address this challenge, a range of automated or semi-automated bag opening folding equipment has emerged in the market in recent years. These devices have improved folding efficiency and reduced labor costs to a certain extent. However, in practical application, these devices still have many shortcomings. For example, some devices cannot effectively maintain the stable movement of the bag during the folding process, causing the bag to shift or twist in the folding area, seriously affecting the folding effect and product quality. Furthermore, some devices have defects in the reset mechanism and anti-slip design, which are prone to failure during use. For example, the guide roller may fall off or the reset is inaccurate. This not only affects the normal operation of the equipment but also poses a safety hazard to the operator. To this end, we have developed a bag opening folding device. Utility Model Content

[0004] In order to solve the above problems, the present invention proposes a packaging bag bag opening folding device to more accurately solve the problems raised in the above background technology.

[0005] The utility model is achieved through the following technical solutions:

[0006] The utility model provides a bag opening folding device for packaging bags, comprising an L-shaped placement plate and a folding plate rotatably connected by a hinge. The inner side wall of the L-shaped placement plate is rotatably connected to a rotating rod via a bearing. The outer periphery of the rotating rod is provided with a guide roller for guiding the packaging bag. A reset mechanism is connected between the L-shaped placement plate and the folding plate. The end of the rotating rod is connected to an anti-slip component for preventing the guide roller from detaching.

[0007] The reset mechanism includes a U-shaped block fixedly connected to the surface of the folding plate and a strip groove opened on the upper surface of the L-shaped placement plate. A movable sleeve block is slidably connected to the inner wall of the strip groove. A groove opening is opened at the upper end of the movable sleeve block. The groove opening is rotatably connected to a rotating connecting rod through a rotating shaft, and the other end of the rotating connecting rod is rotatably connected to the U-shaped block through a rotating shaft.

[0008] Furthermore, the reset mechanism also includes a fixed rod fixedly connected between the two end walls of the strip groove, a spring is sleeved on the periphery of the fixed rod, and the movable sleeve block is slidably sleeved on the periphery of the fixed rod.

[0009] Furthermore, the anti-slip assembly includes a threaded groove opened on the periphery of the end of the rotating rod, a limiting sleeve is provided on the periphery of the end of the rotating rod, and the rotating rod is threadedly sleeved with a nut through the threaded groove.

[0010] Furthermore, a bending guide plate is fixedly installed on the inner bottom wall of the L-shaped placement plate, and the bending guide plate is arranged at the periphery of the guide roller to guide the bending of the end of the packaging bag.

[0011] Furthermore, a limiting ring is fixedly installed on the periphery of the rotating rod to limit the lateral deviation of the packaging bag.

[0012] Furthermore, one end of the spring is fixedly connected to the end wall of the strip-shaped groove, and the other end of the spring is fixedly connected to one end surface of the moving sleeve block.

[0013] Beneficial effects of the utility model:

[0014] The utility model uses the ingenious design of the L-shaped placement plate and the folding plate, and the assistance of the guide roller, so that the device can achieve preliminary folding preparation for the bag mouth of the packaging bag; at the same time, the addition of the curved guide plate and the limiting ring piece enables the packaging bag to maintain a stable travel path during the folding process, avoiding problems such as uneven folding or damage caused by lateral deviation; these designs together improve the efficiency and accuracy of folding the bag mouth of the packaging bag, making the folded packaging bag more beautiful and practical.

[0015] The utility model adopts the design of a reset mechanism and an anti-slip assembly; the reset mechanism realizes the automatic reset of the folding plate through the cooperation of a spring and a movable sleeve, so that it can quickly and stably return to the initial position after each use; and the anti-slip assembly effectively prevents the guide roller from falling off due to external force during use through the combination of a threaded groove, a limit sleeve and a nut; these designs not only enhance the stability and durability of the device, but also improve the safety and reliability during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure disassembly of the guide roller and the rotating rod in one embodiment of the utility model;

[0018] Figure 3 This is an embodiment of the utility model Figure 1 A magnified view of the structure at point A;

[0019] Figure 4 This is an embodiment of the utility model Figure 2 A magnified view of the structure at point B.

[0020] In the figure: 1. L-shaped placement plate; 2. folding plate; 3. rotating rod; 4. guide roller; 5. bending guide plate; 6. limiting ring; 7. U-shaped block; 8. strip groove; 9. fixing rod; 10. spring; 11. movable sleeve; 12. groove mouth; 13. rotating connecting rod; 14. threaded groove; 15. limiting sleeve; 16. nut. DETAILED DESCRIPTION

[0021] In order to more clearly and completely illustrate the technical solution of the present invention, the present invention will be further described below with reference to the accompanying drawings.

[0022] Example

[0023] like Figures 1-4 As shown, a packaging bag mouth folding device proposed in one embodiment of the utility model is mainly composed of an L-shaped placement plate 1 and a folding plate 2, which are rotatably connected by a hinge. A rotating rod 3 is installed on the inner wall of the L-shaped placement plate 1 through a bearing, and a guide roller 4 is provided on the rotating rod 3, which assists the smooth movement of the packaging bag on the device. A reset mechanism is designed between the L-shaped placement plate 1 and the folding plate 2 to ensure that the folding plate 2 can return to the initial position stably and flexibly. In addition, an anti-slip component is specially designed at the end of the rotating rod 3 to prevent the guide roller 4 from accidentally falling off during use.

[0024] The device achieves preliminary folding preparation of the bag opening through the cooperation of the L-shaped placement plate 1 and the folding plate 2, with the assistance of the guide roller 4. The design of the reset mechanism and anti-slip component further enhances the stability and practicality of the device.

[0025] Furthermore, the reset mechanism includes a fixed rod 9 fixedly connected between the two end walls of the strip groove 8, and a spring 10 sleeved around the outer periphery of the fixed rod 9. The movable sleeve 11 is slidably sleeved on the fixed rod 9 and, at the same time, is acted upon by the elastic force of the spring 10, so that the folding plate 2 can automatically reset after rotation.

[0026] The addition of the spring 10 makes the reset mechanism more sensitive and reliable, ensuring that the folding plate 2 can quickly and stably return to the initial position after each use.

[0027] Furthermore, the design of the anti-slip assembly includes a threaded groove 14 formed on the periphery of the end of the rotating rod 3 and a sleeved limit block 15. Then, a nut 16 is threadedly sleeved through the threaded groove 14 to fix the position of the limit block 15 and the guide roller 4.

[0028] Among them, this design effectively prevents the guide roller 4 from falling off due to external force during use, thereby ensuring the safety and stability of the device.

[0029] Furthermore, a bending guide plate 5 is fixedly installed on the inner bottom wall of the L-shaped placement plate 1. The bending guide plate 5 is located on the periphery of the guide roller 4 and is used to bend and guide the end of the packaging bag.

[0030] The design of the curved guide plate 5 enables the packaging bag to bend and fold the bag opening more smoothly when passing through the guide roller 4, thereby improving the folding effect and efficiency.

[0031] Furthermore, a limiting ring piece 6 is fixedly installed on the periphery of the rotating rod 3. The function of the limiting ring piece 6 is to limit the lateral deviation of the packaging bag, ensuring that the packaging bag can maintain a stable travel path when passing through the guide roller 4.

[0032] The addition of the limiting ring piece 6 makes the packaging bag more stable during the folding process, thus avoiding problems such as uneven folding or damage caused by lateral deviation.

[0033] Furthermore, in the reset mechanism, one end of the spring 10 is fixedly connected to the end wall of the strip groove 8, and the other end is fixedly connected to one end surface of the movable sleeve 11. This design enables the spring 10 to more effectively exert elastic force on the movable sleeve 11, thereby achieving automatic reset of the folding plate 2.

[0034] Among them, this connection method makes the structure of the reset mechanism more compact and stable, and also improves the accuracy and sensitivity of the reset of the folding plate 2.

[0035] Finally, it should be noted that while the basic concepts have been described above, it should be apparent to those skilled in the art that the detailed disclosure is provided merely as an example and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and revisions to this specification. Such modifications, improvements, and revisions are suggested throughout this specification and remain within the spirit and scope of the exemplary embodiments of this specification. Furthermore, this specification uses specific terms to describe the embodiments of this specification. For example, terms such as "one embodiment," "an embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "one embodiment," "an embodiment," or "an alternative embodiment" two or more times in different places in this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics of one or more embodiments of this specification may be appropriately combined. Furthermore, unless expressly provided in the claims, the order of the processing elements and sequences, the use of alphanumeric characters, or other designations described in this specification are not intended to limit the order of the processes and methods of this specification.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A packaging bag opening folding device, comprising an L-shaped placement plate (1) and a folding plate (2) connected by a hinge, characterized in that: The inner side wall of the L-shaped placement plate (1) is rotatably connected to a rotating rod (3) via a bearing; a guide roller (4) is provided on the outer periphery of the rotating rod (3) for guiding the rolling of packaging bags; a reset mechanism is connected between the L-shaped placement plate (1) and the folding plate (2); and an anti-detachment component for limiting the detachment of the guide roller (4) is connected to the end of the rotating rod (3); The reset mechanism comprises a U-shaped block (7) fixedly connected to the surface of the folding plate (2) and a strip groove (8) provided on the upper end surface of the L-shaped placement plate (1); a movable sleeve block (11) is slidably connected to the inner wall of the strip groove (8); a groove opening (12) is provided at the upper end of the movable sleeve block (11); the groove opening (12) is rotatably connected to a rotating link (13) via a rotating shaft, and the other end of the rotating link (13) is rotatably connected to the U-shaped block (7) via the rotating shaft.

2. A packaging bag opening folding device according to claim 1, characterized in that: The reset mechanism also includes a fixed rod (9) fixedly connected between the two end walls of the strip groove (8), a spring (10) is sleeved on the periphery of the fixed rod (9), and the movable sleeve block (11) is slidably sleeved on the periphery of the fixed rod (9).

3. The packaging bag opening folding device according to claim 1, characterized in that: The anti-slip assembly comprises a threaded groove (14) provided on the periphery of the end of the rotating rod (3); a limiting sleeve (15) is sleeved on the periphery of the end of the rotating rod (3); and a nut (16) is threadedly sleeved on the rotating rod (3) through the threaded groove (14).

4. The packaging bag opening folding device according to claim 1, characterized in that: A bending guide plate (5) is fixedly mounted on the inner bottom wall of the L-shaped placement plate (1), and the bending guide plate (5) is arranged at the periphery of the guide roller (4) and is used for bending and guiding the end of the packaging bag.

5. The packaging bag opening folding device according to claim 1, characterized in that: A limiting ring piece (6) is fixedly mounted on the periphery of the rotating rod (3) to limit the lateral deviation of the packaging bag.

6. The packaging bag opening folding device according to claim 2, characterized in that: One end of the spring (10) is fixedly connected to the end wall of the strip groove (8), and the other end of the spring (10) is fixedly connected to one end surface of the moving sleeve block (11).

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