A device for embossing a garbage bag

Abstract

The utility model discloses a kind of embossing device of garbage bag, including the rack being set in garbage bag production line, the embossing assembly being set on the rack, the embossing assembly includes the embossing roller being rotatably connected with the rack, and the embossing unit and the gap for garbage bag transmission are provided between the upper and lower two embossing rollers, and the embossing unit includes the embossing protrusion and the embossing groove matched. The above-mentioned embossing device of garbage bag is reasonable in structure, the surface of garbage bag can be embossed, the toughness of garbage bag is enhanced, and part of accommodating space is provided for the edge and corner of garbage, and the load bearing of garbage bag is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of garbage bag manufacturing, and in particular to a garbage bag embossing device. Background Technology

[0002] Garbage bags, as the name suggests, are bags for holding garbage. These small bags bring great convenience to thousands of households and provide important protection for the environment.

[0003] Existing garbage bags are mainly made of plastic film. The manufacturing process of garbage bags does not involve any structural treatment on their surface. They can only rely on the strength of the material itself. Therefore, during use, their load-bearing capacity is poor and they are prone to damage, thus affecting normal use.

[0004] Therefore, it is necessary to improve the existing garbage bag production line technology. Utility Model Content

[0005] The purpose of this invention is to overcome the defects in the existing technology and provide a garbage bag embossing device that can emboss the surface of garbage bags, enhance the toughness of garbage bags, and provide some space for the corners and edges of garbage.

[0006] To achieve the above technical effects, the technical solution of this utility model is as follows: a garbage bag embossing device, including a frame set in a garbage bag production line and an embossing component set on the frame. The embossing component includes an embossing roller rotatably connected to the frame. A plurality of embossing units and a gap for garbage bag transmission are provided between the upper and lower embossing rollers. The embossing unit includes a matching embossing protrusion and an embossing groove.

[0007] According to one embodiment of the present invention, the embossed protrusions include a plurality of transverse protrusions, longitudinal protrusions, or oblique protrusions. The present invention also provides one, two, or three types of such protrusions.

[0008] According to one embodiment of the present invention, the lengths of the embossed protrusions are not the same.

[0009] According to one embodiment of the present invention, a base plate is further included around the embossing roller, the base plate being detachably fixedly connected to the embossing roller, and the embossing unit being disposed on the base plate.

[0010] According to one embodiment of the present invention, the embossing roller is a magnetic roller, and the substrate is a magnetic suction plate that magnetically cooperates with the magnetic roller.

[0011] According to one embodiment of the present invention, the embossing roller is provided with a positioning mark to facilitate positioning of the substrate.

[0012] According to one embodiment of the present invention, a first adjusting component for adjusting the roller spacing between the two embossing rollers is provided between the embossing roller and the frame.

[0013] According to one embodiment of the present invention, the first adjusting component includes a slider that is vertically connected to the frame, the embossing roller includes an upper pressure roller and a lower pressure roller, the upper pressure roller is rotatably connected to the slider, and a cylinder for adjusting the height of the slider is provided between the frame and the slider.

[0014] According to one embodiment of the present invention, it further includes an anti-warping component disposed on the feeding side of the embossing component.

[0015] According to one embodiment of the present invention, the anti-warping component includes a pressing roller, and the frame is provided with a second adjusting component for adjusting the height of the pressing roller.

[0016] According to one embodiment of the present invention, the second drive assembly includes a motor, the pressing roller is provided with a pressing shaft and a rotating shaft connected to each other, the center lines of the pressing shaft and the rotating shaft are not coincident, and the output shaft of the motor is fixedly connected to the rotating shaft.

[0017] According to one embodiment of the present invention, the anti-curling edge assembly further includes a conveyor belt assembly disposed between the pressing roller and the embossing assembly, the conveyor belt assembly including upper and lower conveyor belts, and the side of the garbage bag is sandwiched between the two conveyor belts.

[0018] The advantages and beneficial effects of this utility model are as follows: The garbage bag embossing device of this utility model has a reasonable structure. The embossing component embosses the surface of the garbage bag, enhancing the toughness and tear resistance of the garbage bag. The wrinkled structure formed by the embossing can disperse stress and improve the tear resistance of the garbage bag under load, especially providing significant protection against puncture by sharp objects. It also reduces adhesion and static electricity: The surface texture reduces the frictional resistance when garbage bags are stacked, preventing the bags from sticking together and making them difficult to separate, while also inhibiting the generation of static electricity. The wrinkled structure can provide a certain amount of space. Compared with a flat garbage bag, the edges and corners of the garbage bag can be accommodated by the wrinkles to a certain extent and with a certain probability, reducing the probability of puncture. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of the garbage bag embossing device of this utility model;

[0020] Figure 2 This is a structural diagram of the embossed component;

[0021] Figure 3 This is a structural diagram of the anti-warping component;

[0022] Figure 4 This is a schematic diagram of the embossing roller structure;

[0023] Figure 5 yes Figure 4 An explosion diagram;

[0024] Figure 6 This is a schematic diagram of the embossed raised pattern;

[0025] Figure 7 This is a schematic diagram of the embossed protrusions in another specific embodiment;

[0026] In the diagram: 100, frame; 200, embossing assembly; 210, embossing roller; 211, positioning mark; 220, embossing protrusion; 221, transverse protrusion; 222, longitudinal protrusion; 223, oblique protrusion; 230, substrate; 240, slider; 250, cylinder; 300, anti-warping assembly; 310, edge pressing roller; 320, motor; 330, conveyor belt. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0028] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "horizontal," "vertical," "top," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for 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 of 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. Example

[0029] like Figure 1-2 As shown, the garbage bag embossing device of the embodiment includes a frame 100 disposed in the garbage bag production line and an embossing component 200 disposed on the frame 100. The embossing component 200 includes an embossing roller 210 rotatably connected to the frame 100. A plurality of embossing units and a gap for conveying garbage bags are disposed between the upper and lower embossing rollers 210. The embossing unit includes a matching embossing protrusion 220 and an embossing groove.

[0030] During the production of garbage bags, the garbage bags undergo embossing treatment via the embossing component 200. The combination of embossing protrusions and embossing grooves creates pleats on the surface of the garbage bag. These pleats disperse stress, thereby increasing the toughness and tear resistance of the garbage bag. The pleats also provide some space, and compared to flat garbage bags, the edges and corners of the garbage can be accommodated to a certain extent by the space created by the pleats, reducing the probability of the garbage bag being punctured. The pleats also reduce the frictional resistance when garbage bags are stacked, preventing the bags from sticking together and becoming difficult to separate.

[0031] like Figure 6 As shown, according to one embodiment of the present invention, the embossed protrusion 220 includes a plurality of transverse protrusions 221. The plurality of transverse protrusions 221 are arranged longitudinally to form protrusion units, and the plurality of protrusion units are arranged in rows and columns.

[0032] The transverse protrusions 221 form transverse indentations and pleats on the surface of the garbage bag. When the garbage bag is subjected to transverse tension, these pleated structures can disperse the stress and prevent the stress from concentrating at a single point, thereby improving the toughness and tear resistance of the garbage bag in the transverse direction, making it less likely to be torn by transverse forces.

[0033] like Figure 7 As shown, in another specific embodiment, the embossed protrusions 220 include a plurality of transverse protrusions 221, longitudinal protrusions 222, and oblique protrusions 223.

[0034] This design allows for omnidirectional stress dispersion, enhancing tear resistance: the lateral protrusions 221 disperse lateral tensile forces, the longitudinal protrusions 222 handle longitudinal stress, and the diagonal protrusions 223 resist diagonal or multi-angle tensile forces. The combination of these three features ensures that when the garbage bag is subjected to external forces from any direction, the stress is evenly distributed through the multi-directional pleated structure, preventing localized concentrated ruptures. This design is particularly suitable for loading irregularly shaped garbage (such as sharp edges), significantly improving tear resistance.

[0035] like Figure 6-7 As shown, according to one embodiment of the present invention, the lengths of the embossed protrusions 220 are not the same.

[0036] Non-uniform pleats disperse multi-directional stress: Embossed protrusions 220 of varying lengths form an irregular pleated structure on the surface of the garbage bag. When the garbage bag is subjected to external forces (such as load-bearing or pulling), the different lengths of the protrusions create pleats of varying depths and spacing, which disperses stress in multiple directions and different areas, preventing stress concentration at a fixed location (e.g., protrusions of equal length may form a weak stress line due to their regular arrangement). This improves the overall tear resistance of the garbage bag, making it especially suitable for loading heavy objects with sharp edges.

[0037] like Figure 4-5As shown, according to one embodiment of the present invention, a base plate 230 is further included around the embossing roller 210. The base plate 230 is detachably fixedly connected to the embossing roller 210, and the embossing unit is disposed on the base plate 230.

[0038] Modular replacement reduces maintenance costs: The embossing unit is integrated on the substrate 230. When the embossing unit wears down due to long-term use (such as dulling of protrusions or deformation of grooves), it is not necessary to replace the entire embossing roller 210. Only the corresponding substrate 230 needs to be disassembled and replaced. This "modular" design can significantly reduce maintenance costs (only the substrate needs to be replaced, rather than the expensive roller), while shortening equipment downtime and improving production efficiency.

[0039] Quick switching to adapt to different embossing needs: If you need to change the embossing texture (such as switching from horizontal protrusions 221 to diagonal protrusions 223, or adjusting the protrusion density), you only need to replace the substrate 230 with different embossing units, without having to reprocess the embossing roller 210.

[0040] According to one embodiment of the present invention, the embossing roller 210 is a magnetic roller, and the substrate 230 is a magnetic suction plate that magnetically cooperates with the magnetic roller.

[0041] With this design, the substrate 230 can be quickly and magnetically attached to the surface of the embossing roller without the need for additional screws or clips, making the installation process simple and precise. At the same time, the magnetic connection ensures stable fixation of the substrate during high-speed rotation, preventing uneven embossing due to loosening.

[0042] like Figure 5 As shown, according to one embodiment of the present invention, the embossing roller 210 is provided with a positioning mark 211 to facilitate positioning of the substrate 230. The positioning mark 211 includes a starting point placement mark and a side alignment mark.

[0043] like Figure 2 As shown, according to one embodiment of the present invention, a first adjusting component for adjusting the roller spacing between the two embossing rollers 210 is provided between the embossing roller 210 and the frame 100.

[0044] With this design, when the substrate 230 needs to be replaced, the distance between the two embossing rollers 210 is increased, making the operation easier.

[0045] According to one embodiment of the present invention, the first adjustment component includes a slider 240 that is vertically connected to the frame 100, the embossing roller 210 includes an upper pressure roller and a lower pressure roller, the upper pressure roller is rotatably connected to the slider 240, and a cylinder 250 for adjusting the height of the slider 240 is provided between the frame 100 and the slider 240.

[0046] The cylinder 250 can precisely control the lifting and lowering of the slider 240 through air pressure, thereby adjusting the gap between the two embossing rollers 210. When embossing is required on plastic films of different thicknesses (e.g., thicker films require greater pressure, thinner films require less pressure), the embossing force can be controlled by adjusting the roller gap: a smaller gap increases the embossing depth, while a larger gap makes the embossing shallower, thus avoiding the film being punctured due to excessive pressure or the embossing being unclear due to insufficient pressure.

[0047] like Figure 1 , 3 As shown, according to one embodiment of the present invention, it further includes an anti-warping component 300 disposed on the feeding side of the embossing component 200.

[0048] This design prevents the edges of the garbage bag from curling up and affecting the embossing effect:

[0049] 1. Ensure the film is transported smoothly.

[0050] During transport, garbage bag film may experience edge curling (such as a "ruffled edge") due to uneven tension, material characteristics, or the influence of previous processes. The anti-curling edge component 300 applies pressure to the film edge via the pressure roller 310 or the conveyor belt 330, keeping it flat as it enters the embossing component 200. This prevents wrinkles, misalignment, or unclear embossing caused by edge curling, ensuring the accuracy of the embossing process.

[0051] 2. Prevent edge jamming or offset

[0052] The raised edges of the film can easily get stuck in the gaps between the embossing rollers or in the conveying mechanism, causing obstruction or even tearing of the film. Anti-warping components can reduce conveying failures and improve the continuity and reliability of the production line by stabilizing the edge position.

[0053] According to one embodiment of the present invention, the anti-warping component 300 includes a pressing roller 310, and the frame 100 is provided with a second adjusting component for adjusting the height of the pressing roller 310.

[0054] Edge pressing adaptable to films of different thicknesses: Plastic films of different thicknesses exhibit varying degrees of edge warping during transport (e.g., thin films are prone to warping, while thick films are relatively flat). By adjusting the height of the edge pressing roller 310 using the second adjustment component, the pressure exerted by the edge pressing roller on the film edge can be precisely controlled: thicker films require increased pressure (lower edge pressing roller height) to suppress edge warping, while thinner films require reduced pressure (higher edge pressing roller height) to avoid tearing the film, ensuring that the edges of films of different materials remain flat as they enter the embossing assembly 200.

[0055] Dynamic compensation for film tension fluctuations: During the transmission process, the film may experience edge undulations due to tension changes. The second adjustment component can finely adjust the height of the pressure roller in real time to dynamically adapt to the height fluctuations of the film edge, continuously maintain stable pressure on the edge, and avoid edge lifting caused by unstable tension.

[0056] According to one embodiment of the present invention, the second drive assembly includes a motor 320, the pressing roller 310 is provided with a pressing shaft and a rotating shaft connected to each other, the center lines of the pressing shaft and the rotating shaft are not coincident, and the output shaft of the motor 320 is fixedly connected to the rotating shaft.

[0057] The centerlines of the pressure roller and the rotating shaft do not coincide (eccentric design). When the motor 320 drives the rotating shaft to rotate, the pressure roller will make a circular motion with the eccentricity as the radius, thereby driving the pressure roller 310 to move. This motion can adjust the pressure of the pressure roller on the edge of the film in real time.

[0058] According to one embodiment of the present invention, the anti-curling edge assembly 300 further includes a conveyor belt 330 assembly disposed between the pressing roller 310 and the embossing assembly 200. The conveyor belt 330 assembly includes two upper and lower conveyor belts 330, and the side of the garbage bag is sandwiched between the two conveyor belts 330.

[0059] Mechanical clamping ensures that the film edges are absolutely flat, eliminating the risk of edge curling.

[0060] 1. Physical constraints eliminate edge freedom: The upper and lower conveyor belts 330 clamp the sides of the garbage bag, forming a "clamping channel" that completely fixes the film edge before it enters the embossing assembly 200. This physical constraint can completely eliminate the upward or wavy deformation of the edge caused by uneven tension. Especially for films made of soft materials (such as low-density polyethylene), the clamping force can keep the edge 100% flat, avoiding edge wrinkles or misalignment during embossing.

[0061] 2. Precise positioning of the edge conveyor path: The side of the garbage bag is clamped between the conveyor belts, and its conveyor trajectory is strictly limited by the spacing and tension of the upper and lower conveyor belts. Even if there is film misalignment in the previous process, the conveyor belt assembly can forcefully correct the edge to the correct position through clamping force, ensuring that the relative position of the edge and the embossing roller 210 is accurate during embossing, and avoiding embossing deviation due to edge misalignment (such as asymmetrical edge embossing patterns).

[0062] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A garbage bag embossing device, characterized in that, The system includes a frame (100) installed in the garbage bag production line and an embossing assembly (200) installed on the frame (100). The embossing assembly (200) includes an embossing roller (210) rotatably connected to the frame (100). A plurality of embossing units and a gap for transporting garbage bags are provided between the upper and lower embossing rollers (210). The embossing unit includes a matching embossing protrusion (220) and an embossing groove.

2. The garbage bag embossing device according to claim 1, characterized in that, The embossed protrusions (220) include one, two, or three of the following: transverse protrusions (221), longitudinal protrusions (222), or oblique protrusions (223).

3. The garbage bag embossing device according to claim 1 or 2, characterized in that, The lengths of some of the embossed protrusions (220) are not the same.

4. The garbage bag embossing device according to claim 1, characterized in that, It also includes a base plate (230) surrounding the embossing roller (210), the base plate (230) being detachably fixedly connected to the embossing roller (210), and the embossing unit being disposed on the base plate (230).

5. The garbage bag embossing device according to claim 4, characterized in that, The embossing roller (210) is a magnetic roller, and the substrate (230) is a magnetic suction plate that magnetically cooperates with the magnetic roller.

6. The garbage bag embossing device according to claim 5, characterized in that, The embossing roller (210) is provided with a positioning mark (211) to facilitate positioning of the substrate (230).

7. The garbage bag embossing device according to claim 4, characterized in that, A first adjustment component for adjusting the roller spacing between the two embossing rollers (210) is provided between the embossing roller (210) and the frame (100).

8. The garbage bag embossing device according to claim 1, characterized in that, It also includes an anti-warping component (300) disposed on the feed side of the embossing component (200).

9. The garbage bag embossing device according to claim 8, characterized in that, The anti-warping assembly (300) includes a pressing roller (310), and the frame (100) is provided with a second adjustment assembly for adjusting the height of the pressing roller (310).

10. The garbage bag embossing device according to claim 9, characterized in that, The anti-curling component (300) also includes a conveyor belt (330) component disposed between the pressing roller (310) and the embossing component (200). The conveyor belt (330) component includes two upper and lower conveyor belts (330), and the side of the garbage bag is sandwiched between the two conveyor belts (330).

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