Automatic cutting device for processing soft packaging bag

Abstract

This utility model relates to the field of packaging bag cutting technology, and discloses an automatic cutting device for processing flexible packaging bags. It includes a platform with photoelectric sensing components, and further includes: a cutting structure disposed on the platform, with a bearing surface formed at the top of the platform and a buffer channel adapted to the cutting structure on the bearing surface; the axis L of the output end of the cutting structure is perpendicular to the bearing surface; and a limiting structure disposed on the platform, with a limiting component on the limiting structure, a limiting space formed at the bottom of the limiting component, and an expansion component disposed within the limiting space. This utility model can effectively fix the flexible packaging bag, preventing inaccurate cutting due to movement or shaking of the packaging bag during the cutting process.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag cutting technology, specifically an automatic cutting device for processing flexible packaging bags. Background Technology

[0002] Currently, packaging bags are being used more and more widely in our production and daily life due to their good storage and portability. In the production process of flexible packaging bags, multiple flexible packaging bags are usually connected together and then cut using a packaging bag cutting machine.

[0003] In the prior art, when the cutting machine is running, as the packaging bag is conveyed, the cutting blade on the cutting mechanism cuts the predetermined part of the entire packaging bag. In order to improve the cutting accuracy, photoelectric sensors are used to assist the cutting mechanism in cutting. Especially during continuous production, the photoelectric sensors are easily affected by ambient light, which can cause the packaging bag to shift and result in uneven cutting of the packaging bag. Therefore, we propose an automatic cutting device for processing flexible packaging bags. Utility Model Content

[0004] This utility model provides an automatic cutting device for processing flexible packaging bags. By using a limiting structure, a cutting structure and an expansion component in combination, the flexible packaging bag to be cut is fixed, which solves the problem mentioned in the background art that the packaging bag is prone to displacement, resulting in uneven cutting of the packaging bag.

[0005] This utility model provides the following technical solution:

[0006] An automatic cutting device for processing flexible packaging bags includes a platform with photoelectric sensing components, and further includes: a cutting structure disposed on the platform, wherein the top of the platform forms a bearing surface, and a buffer channel adapted to the cutting structure is formed on the bearing surface, and the axis L of the output end of the cutting structure is perpendicular to the bearing surface; and a limiting structure disposed on the platform, wherein a limiting component is provided on the limiting structure, the bottom of the limiting component forms a limiting space, and an expansion component is disposed within the limiting space.

[0007] As a preferred technical solution of this utility model, the limiting structure includes a guide plate fixedly connected to the platform, wherein an extension plate is fixedly connected to the side wall of the guide plate, a movable cylinder is slidably connected to the extension plate, a movable rod is slidably connected to the movable cylinder, one end of the movable rod extends into the movable cylinder and a piston is provided therein, the top of the piston is connected to the inner wall of the movable cylinder by a limiting spring, and the limiting member is provided at the other end of the movable rod.

[0008] As a preferred embodiment of this utility model, the limiting member includes a limiting plate disposed on the movable rod.

[0009] As a preferred embodiment of the present invention, the expansion component includes a groove formed at the bottom of the limiting plate, the limiting space is formed in the groove, an expansion airbag is provided in the groove, and the expansion airbag is connected to the cavity above the piston in the movable cylinder through a pipe.

[0010] As a preferred technical solution of this utility model, the cutting structure includes a support frame fixedly connected to the platform, wherein a crossbeam is provided on the support frame, a telescopic member is provided on the crossbeam, a cutting blade is provided at the output end of the telescopic member, and the top of the movable cylinder is fixedly connected to the cutting blade through a connecting plate.

[0011] As a preferred technical solution of this utility model, a limiting groove is provided on the platform, the buffer channel is formed in the limiting groove, and the limiting groove is adapted to the cutting blade.

[0012] Compared with the prior art, this utility model provides an automatic cutting device for processing flexible packaging bags, which has the following beneficial effects:

[0013] In this automatic cutting device for processing flexible packaging bags, an inflatable airbag rapidly expands within the groove, filling the entire limiting space. It also allows the inflatable airbag to quickly adhere to the top surface of the flexible plastic bag, effectively securing the bag and preventing inaccurate cutting due to bag movement or shaking during the cutting process. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 This is a schematic diagram from a first-person perspective of the present invention;

[0017] Figure 2 This is a schematic diagram of the present invention from a second perspective;

[0018] Figure 3 This is a partial schematic diagram of the present invention;

[0019] Figure 4 This utility model Figure 3 A schematic diagram of part A.

[0020] In the diagram: 1. Platform; 101. Limiting groove; 102. Control console; 2. Guide plate; 201. Conveying roller; 202. Limiting shaft; 203. Limiting disc; 3. Support frame; 301. Crossbeam; 302. Telescopic component; 4. Cutting blade; 5. Extension plate; 6. Movable cylinder; 601. Movable rod; 602. Piston; 603. Limiting spring; 7. Connecting plate; 8. Limiting plate; 9. Groove; 10. Inflatable airbag. Detailed Implementation

[0021] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0022] In the description of this utility model, it should be understood that the terms "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 of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] This utility model proposes an automatic cutting device for processing flexible packaging bags, which mainly consists of a base platform 1 and a cutting blade 4. Flexible packaging bags are becoming increasingly widely used in our production and daily life due to their good storage and portability. In the production process of flexible packaging bags, multiple flexible packaging bags are usually connected together and then cut by a packaging bag cutting machine. When the cutting machine is running, as the packaging bags are conveyed, the cutting blade 4 on the cutting mechanism cuts the predetermined part of the entire packaging bag. In order to improve the cutting accuracy, photoelectric sensing components are used to assist the cutting mechanism in cutting.

[0025] Reference Figures 1-4 Two sets of guide plates 2 are symmetrically arranged on platform 1, forming a bearing surface on the top of platform 1. Conveying rollers 201 are arranged on the side walls of the guide plates 2 for conveying the rolled and unrolled soft packaging bags. Two sets of limiting shafts 202 are also provided, and movable limiting discs 203 are sleeved on the limiting shafts 202. The limiting discs 203 are used to adjust the position of the soft packaging bags during the conveying process. One end of the limiting shaft 202 is connected to the driving device. The rotation of the driving device drives the conveying rollers 201 to rotate, thereby adjusting the position of the soft packaging bags. Photoelectric sensing components are arranged on the crossbeam 301 for electrical connection with the driving device to control the rotation speed of the conveying rollers 201. The photoelectric sensing components can detect the position and moving speed of the soft packaging bags and transmit these data to the driving device. The driving device adjusts the rotation speed of the conveying rollers 201 and the cutting timing of the cutting blade 4 based on these data to ensure the cutting accuracy.

[0026] Specifically, an extension plate 5 is fixedly connected to the side wall of the guide plate 2, a movable cylinder 6 is slidably connected to the extension plate 5, a movable rod 601 is slidably connected to the movable cylinder 6, one end of the movable rod 601 extends into the movable cylinder 6 and a piston 602 is provided therein, the piston 602 is in contact with the inner wall of the movable cylinder 6, and the top of the piston 602 is connected to the inner wall of the movable cylinder 6 by a limiting spring 603, a limiting plate 8 is provided at the other end of the movable rod 601, an arc-shaped groove 9 is provided at the bottom of the limiting plate 8, a limiting space is formed in the groove 9, an expansion airbag 10 is provided in the groove 9, the expansion airbag 10 is connected to the cavity above the piston 602 in the movable cylinder 6 through a pipe, and the top of the movable cylinder 6 is fixedly connected to the cutting blade 4 by a connecting plate 7.

[0027] Furthermore, a support frame 3 is installed on platform 1, and a crossbeam 301 is installed on the support frame 3. A telescopic component 302 is installed on the crossbeam 301. The telescopic component 302 can be powered by a cylinder or a hydraulic system. A cutting blade 4 is installed at the output end of the telescopic component 302. During the cutting process, the cylinder or hydraulic system applies high pressure, typically ≥20MPa, causing the cutting blade 4 to instantly penetrate the flexible packaging bag. Its tip extends into the buffer channel of the limiting groove 101. The sharp edge of the cutting blade 4 completes the cutting action quickly and accurately under high pressure. This design not only ensures the efficiency of cutting but also greatly improves the accuracy of cutting and reduces damage to the flexible packaging bag during the cutting process. At the same time, the penetration depth of the cutting blade 4 can be finely controlled by adjusting the output pressure of the telescopic component 302 to adapt to flexible packaging bags of different thicknesses and materials. After cutting, the telescopic component 302 quickly retracts, causing the cutting blade 4 to move away from the cutting position, preparing for the next round of cutting or conveying operations.

[0028] In the above scheme, the bottom of the limiting plate 8 is lower than the tip of the cutting blade 4. When the cutting blade 4 descends, the bottom of the limiting plate 8 can abut against the surface of the soft packaging bag in advance. At the same time, during this process, as the cutting blade 4 descends, it will simultaneously drive the movable cylinder 6 on the extension plate 5 and move downward. At this time, the bottom of the limiting plate 8 can abut against the surface of the soft packaging bag in advance. Meanwhile, the movable rod 601 will drive the piston 602 to move inside the movable cylinder 6, so that the piston 602 will pressurize the cavity inside the movable cylinder 6 instantly and transport it to the expansion airbag 10 through the pipe, so that it will quickly expand in the groove 9 and fill the entire limiting space. It can also make the expansion airbag 10 quickly adhere to the top surface of the soft plastic bag, thereby effectively fixing the soft packaging bag and preventing inaccurate cutting due to the movement or shaking of the packaging bag during the cutting process.

[0029] Furthermore, the rapid expansion and sealing of the inflatable airbag 10 effectively reduces lateral pressure on the flexible packaging bag during cutting, lowering the risk of damage during the cutting process. Simultaneously, after cutting is complete, as the telescopic component 302 retracts, the cutting blade 4 moves away from the cutting position. At this time, the pressure of the limiting spring 603 inside the movable cylinder 6 gradually releases, and the inflatable airbag 10 also contracts, facilitating the next round of cutting or conveying operations.

[0030] Specifically, a control console 102 is also installed on platform 1. The control console 102 integrates control buttons and a display screen, allowing operators to conveniently control the entire cutting device. The display screen shows key information such as cutting progress and cutting dimensions in real time, enabling operators to intuitively understand the cutting status. Through the intelligent control of the control console 102, the cutting process is automated and precise, greatly improving the processing efficiency and cutting quality of flexible packaging bags.

[0031] It should be noted that components not described in detail in this article are existing technologies.

[0032] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A soft packaging bag processing automatic cutting device, comprising a platform (1) with photoelectric sensing components, characterized in that, Also include: Cutting structure, arranged on the platform (1), Wherein, the top of the platform (1) forms a bearing surface, the bearing surface is provided with a buffer channel matched with the cutting structure, the axis L of the output end of the cutting structure is perpendicular to the bearing surface; Limiting structure, arranged on the platform (1), Wherein, the limiting structure is provided with a limiting piece, the bottom of the limiting piece forms a limiting space, and the limiting space is provided with an expansion component.

2. The automatic cutting device for processing soft packaging bags according to claim 1, characterized in that, The limiting structure includes a guide plate (2) fixedly connected to the platform (1), Wherein, the side wall of the guide plate (2) is fixedly connected with an extension plate (5), the extension plate (5) is slidably connected with a movable cylinder (6), the movable cylinder (6) is slidably connected with a movable rod (601), one end of the movable rod (601) extends into the movable cylinder (6) and is provided with a piston (602), the top of the piston (602) is connected to the inner wall of the movable cylinder (6) through a limiting spring (603), and the limiting piece is arranged at the other end of the movable rod (601).

3. The automatic cutting device for processing soft packaging bags according to claim 2, characterized in that, The limiting piece includes a limiting plate (8) arranged on the movable rod (601).

4. The automatic cutting device for processing soft packaging bags according to claim 3, characterized in that, The expansion component includes a groove (9) formed in the bottom of the limiting plate (8), the limiting space is formed in the groove (9), the expansion air bag (10) is arranged in the groove (9), and the expansion air bag (10) is connected with the cavity above the piston (602) in the movable cylinder (6) through a pipeline.

5. The automatic cutting device for processing soft packaging bags according to claim 2, characterized in that, The cutting structure includes a support frame (3) fixedly connected to the platform (1), Wherein, the support frame (3) is provided with a cross beam (301), the cross beam (301) is provided with a telescopic piece (302), the output end of the telescopic piece (302) is provided with a cutting knife (4), and the top of the movable cylinder (6) is fixedly connected to the cutting knife (4) through a connecting plate (7).

6. The automatic cutting device for processing soft packaging bags according to claim 5, characterized in that, The platform (1) is provided with a limiting groove (101), the buffer channel is formed in the limiting groove (101), and the limiting groove (101) is matched with the cutting knife (4).

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