Garbage bag embossing device

Abstract

The invention discloses a garbage bag embossing device. The garbage bag embossing device comprises a rack; the knurling assembly comprises a knurling roller and a rubber roller matched with the knurling roller for knurling, and the garbage bag is clamped between the knurling roller and the rubber roller; the knurling roller comprises a roller body and knurling units rotationally connected with the roller body, the axis direction of a rotating shaft of each knurling unit is perpendicular to the axis direction of the knurling roller, the knurling units are arranged in the axis direction of the knurling roller, and the knurling units are arranged in the circumferential direction of the roller body; the embossing unit is provided with an arc surface which is matched with the roller surface of the roller body to form a circle; and the rotation driving assembly is used for driving the embossing unit to rotate. The garbage bag embossing device is reasonable in structure, multi-direction and disordered embossing treatment can be conducted on the surface of a garbage bag, and therefore the toughness of the garbage bag is further enhanced.

Description

Technical Field

[0001] This invention 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] Garbage bags are mainly made of plastic film. The manufacturing process of garbage bags does not involve any structural treatment on their surface, so 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, which affects normal use.

[0004] To enhance the toughness of garbage bags, existing technologies involve embossing the surface of the garbage bags. However, since the embossing is orderly and the embossing direction is always consistent, it only enhances the toughness in one direction, resulting in a limited overall increase in the toughness of the garbage bag.

[0005] Therefore, it is necessary to improve the existing garbage bag embossing devices. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects in the prior art and provide a garbage bag embossing device that can perform multi-directional and disordered embossing on the surface of garbage bags, thereby further enhancing the toughness of garbage bags.

[0007] To achieve the above technical effects, the technical solution of the present invention is as follows: a garbage bag embossing device, comprising a frame; an embossing assembly, comprising an embossing roller and a rubber roller that cooperates with the embossing roller for embossing, wherein the garbage bag is sandwiched between the embossing roller and the rubber roller; the embossing roller comprises a roller body and embossing units rotatably connected to the roller body, the rotation axis of the embossing unit being perpendicular to the axis of the embossing roller, a plurality of embossing units being arranged along the axis of the embossing roller, and a plurality of embossing units being arranged along the circumference of the roller body; the embossing unit being provided with an arc surface that cooperates with the roller surface of the roller body to form a circle; and a rotation drive assembly for driving the rotation of the embossing units.

[0008] According to one embodiment of the present invention, the rotation drive assembly includes a fan, the roller body is provided with a ventilation cavity, and the fan is used to blow air into the ventilation cavity; the embossing unit includes a rotating rod disposed in the ventilation cavity, and the rotating rod is fixedly provided with fan blades.

[0009] According to one embodiment of the present invention, an air passage is provided in the roller body, the embossing unit is rotatably connected to the air passage, the embossing unit is provided with a ventilation cavity, the ventilation cavity is connected to the air passage, and the arc surface of the embossing unit is provided with a plurality of air outlet grooves that communicate with the ventilation cavity.

[0010] According to one embodiment of the present invention, the frame is provided with a first vent, and the fan is connected to the first vent; it also includes a first air guide pipe disposed between the first vent and the roller.

[0011] According to one embodiment of the present invention, the air inlet end of the first air guide pipe is slidably disposed in the first air vent, the air outlet end of the first air guide pipe is arc-shaped, and the air outlet end of the first air guide pipe is inserted and engaged with the end of the ventilation cavity; a compression spring is sandwiched between the first air guide pipe and the frame.

[0012] According to one embodiment of the present invention, the end face of the roller body is provided with an air inlet communicating with the air passage, the frame is provided with a second air vent, and further includes a second air guide pipe disposed between the second air vent and the air inlet.

[0013] According to one embodiment of the present invention, the second air guide pipe includes two working positions. In the first working position, the embossing unit performs embossing operation, and the second air guide pipe is disposed in the air passage. In the second working position, the roller rotates, and the second air guide pipe is separated from the air inlet.

[0014] According to one embodiment of the present invention, the frame is provided with a sliding groove, and the second air guide pipe is provided with a slider that is slidably connected to the sliding groove; it also includes a cylinder for driving the second air guide pipe to slide, the cylinder body of the cylinder being fixedly connected to the frame, and the piston rod of the cylinder being fixedly connected to the second air guide pipe.

[0015] According to one embodiment of the present invention, a heating roller rotatably connected to the frame is further included, the heating roller being disposed on the feed side of the embossing assembly.

[0016] According to one embodiment of the present invention, the device further includes a swing assembly movably connected to the frame, the swing assembly reciprocating linearly along the garbage bag conveying direction; the swing assembly includes two spaced-apart and relatively fixed guide rollers; the swing assembly cooperates with the conveying of the garbage bag to keep the embossed section of the garbage bag relatively stationary with respect to the embossing assembly in the first working position.

[0017] According to one embodiment of the present invention, the guide roller includes a feed roller and a discharge roller disposed on both sides of the embossing assembly and moving synchronously thereon, and a first drive assembly for driving the feed roller and the discharge roller to perform reciprocating linear motion is provided between the frame and the feed roller and the discharge roller.

[0018] According to one embodiment of the present invention, the feed roller and the discharge roller have two working positions. In the third working position, the feed roller is arranged adjacent to the embossing assembly, and the discharge roller is arranged away from the embossing assembly. In the fourth working position, the feed roller is arranged away from the embossing assembly, and the discharge roller is arranged adjacent to the embossing assembly. When switching from the third working position to the fourth working position, the embossing assembly performs embossing operations.

[0019] According to one embodiment of the present invention, it further includes a first pair of rollers and a second pair of rollers, wherein the projections of the first pair of rollers and the second pair of rollers on the horizontal plane are located between the projections of the feed roller and the discharge roller on the horizontal plane; the garbage bag is sequentially wound around the first pair of rollers, the feed roller, the discharge roller, and the second pair of rollers.

[0020] The advantages and beneficial effects of the present invention are as follows: The garbage bag embossing device of the present invention has a reasonable structure. By rotating and setting embossing units on the roller body of the embossing roller, the embossing marks of each embossing unit during the embossing operation are irregular, so that the embossing of the garbage bag is irregular and the extensibility of the garbage bag is not uniform, thereby further improving the toughness of the garbage bag. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the garbage bag embossing device of the present invention; Figure 2 yes Figure 1 An explosion diagram; Figure 3 This is a schematic diagram of the structure of an embodiment of the garbage bag embossing device of the present invention (from another perspective); Figure 4 yes Figure 3 An explosion diagram; Figure 5 This is a schematic diagram showing the coordination between the first air guide pipe, the second air guide pipe, and the embossing roller; Figure 6 This is a schematic diagram of the embossing roller structure; Figure 7 yes Figure 6 An explosion diagram; Figure 8 yes Figure 6 A sectional view; Figure 9 yes Figure 6 A sectional view (another sectional view); Figure 10yes Figure 7 A sectional view; Figure 11 yes Figure 7 A sectional view (another sectional view); Figure 12 This is a structural diagram of the rack; Figure 13 This is a schematic diagram of the first air duct; Figure 14 This is a schematic diagram of the second air duct; Figure 15 This is a structural diagram of an embossed unit; Figure 16 This is a structural diagram of the swing assembly; Figure 17 This is a schematic diagram of the swing component in the third working position; Figure 18 This is a schematic diagram of the swing component in its fourth working position; Figure 19 This is a schematic diagram of another embodiment of the embossing unit; In the diagram: 1. Frame; 11. First vent; 12. Second vent; 13. Slide groove; 14. Heating roller; 2. Embossing roller; 21. Roller body; 211. Ventilation chamber; 212. Air passage; 213. Air inlet; 22. Embossing unit; 221. Arc surface; 222. Rotating rod; 223. Fan blade; 224. Ventilation chamber; 225. Air outlet groove; 3. Rubber roller; 4. Fan; 5. First air guide pipe; 51. Air inlet end; 52. Air outlet end; 53. Compression spring; 6. Second air guide pipe; 61. Slider; 62. Cylinder; 71. Feed roller; 72. Discharge roller; 81. First pair of rollers; 82. Second pair of rollers; 91. Slide rod; 92. Sprocket; 93. Chain; 94. Motor. Detailed Implementation

[0022] The specific embodiments of the present invention 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 solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0023] In the description of this invention, 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 only for the convenience of describing the invention 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example

[0024] like Figure 1-18 As shown, the garbage bag embossing device of this embodiment includes a frame 1; an embossing assembly including an embossing roller 2 and a rubber roller 3 that cooperates with the embossing roller 2 for embossing, with the garbage bag sandwiched between the embossing roller 2 and the rubber roller 3; the embossing roller 2 includes a roller body 21 and embossing units 22 rotatably connected to the roller body 21, the rotation axis of the embossing unit 22 being perpendicular to the axis of the embossing roller 2, and a plurality of embossing units 22 being arranged along the axis of the embossing roller 2 and along the circumference of the roller body 21; the embossing unit 22 is provided with an arc surface 221 that cooperates with the roller surface of the embossing roller 2 to form a circle; and a rotation drive assembly for driving the rotation of the embossing unit 22.

[0025] This design achieves multi-directional, disordered embossing: the rotation axis of the embossing unit is perpendicular to the axis of the embossing roller, and several units are arranged along both the axis of the embossing roller and the circumference of the roller body. Driven by the rotation drive assembly, each embossing unit can rotate independently, so that before embossing the garbage bag, the direction of the indentations is not fixed and exhibits irregularity, thus achieving multi-directional, disordered embossing treatment on the surface of the garbage bag.

[0026] Enhanced garbage bag toughness: Due to the multi-directional and disordered nature of embossing, the extensibility of garbage bags can be improved in different directions, avoiding the problem of insufficient overall toughness caused by the orderly embossing that only enhances toughness in one direction in the existing technology, thus further enhancing the toughness of garbage bags.

[0027] According to one embodiment of the present invention, the rotation drive assembly includes a fan 4, the roller body 21 is provided with a ventilation cavity 211, and the fan 4 is used to blow air into the ventilation cavity 211; the embossing unit 22 includes a rotating rod 222 disposed in the ventilation cavity 211, and the rotating rod 222 is fixedly provided with a fan blade 223.

[0028] With this design, the driving method is simple and efficient: the fan blows air into the ventilation cavity of the roller, and the airflow drives the fan blades on the rotating rod in the embossing unit, thereby driving the embossing unit to rotate. The embossing unit can perform a disordered reversal before the embossing operation.

[0029] Achieving disordered rotation of embossing units: The flow of air has a certain degree of randomness. When acting on the fan blades, it can cause the rotation angle and speed of each embossing unit to exhibit irregularity. The disordered rotation of the embossing units can achieve multi-directional and disordered embossing of the garbage bag, which helps to form indentations of various directions on the surface of the garbage bag, thereby enhancing its toughness.

[0030] According to one embodiment of the present invention, an air passage 212 is provided inside the roller body 21, the embossing unit 22 is rotatably connected to the air passage 212, the embossing unit 22 is provided with a ventilation cavity 224, the ventilation cavity 224 is connected to the air passage 212, and the arc surface 221 of the embossing unit 22 is provided with a plurality of air outlet grooves 225 that communicate with the ventilation cavity 224.

[0031] This design uses high-pressure jetting to create indentations on the surface of the garbage bag. The air duct 212 communicates with the ventilation chamber 224 of the embossing unit, and the air outlet groove 225 of the curved surface 221 is connected to the ventilation chamber 224, allowing high-pressure gas to be ejected from the air outlet groove 225 through this passage. Compared to traditional embossing where the raised bumps directly contact the surface of the garbage bag, the high-pressure jetting method achieves the embossing purpose while avoiding bump contact, reducing the risk of damage to the garbage bag during manufacturing.

[0032] According to one embodiment of the present invention, the frame 1 is provided with a first vent 11, and the fan 4 is configured to communicate with the first vent 11; it also includes a first air guide pipe 5 disposed between the first vent 11 and the roller body 21.

[0033] Ensuring stable airflow transmission: The first air duct 5 connects the first air inlet 11 of the frame 1 to the roller 21, forming an airflow channel from the fan 4 to the roller 21. This channel ensures that the airflow generated by the fan 4 is stably and efficiently delivered to the ventilation cavity 211 of the roller 21, providing power for the rotation of the embossing unit 22.

[0034] According to one embodiment of the present invention, the air inlet end 51 of the first air guide pipe 5 is slidably disposed in the first air vent 11, the air outlet end 52 of the first air guide pipe 5 is arranged in an arc, and the air outlet end 52 of the first air guide pipe 5 is inserted and engaged with the end of the ventilation cavity 211; a compression spring 53 is sandwiched between the first air guide pipe 5 and the frame 1.

[0035] With this design, under the action of the compression spring 53, the air inlet end 51 of the first air guide pipe 5 is pressed tightly into the ventilation cavity 211. When the embossing roller rotates, the arc design of the air outlet end 52 can squeeze the first air guide pipe 5 out of the ventilation cavity 211. When the embossing roller continues to rotate, the air inlet end 51 of the first air guide pipe 5 is inserted into the next ventilation cavity.

[0036] According to one embodiment of the present invention, the end face of the roller body 21 is provided with an air inlet 213 communicating with the air passage 212, the frame 1 is provided with a second air vent 12, and further includes a second air guide pipe 6 disposed between the second air vent 12 and the air inlet 213.

[0037] Constructing an independent airflow channel: The second air guide pipe 6 connects the second air inlet 12 of the frame 1 with the air inlet 213 of the roller 21, providing an airflow transmission path specifically for the air passage 212 inside the roller 21, ensuring that the airflow can stably enter the air passage 212, thereby providing an air source for the air passage 224 and the air outlet 225 of the embossing unit 22, and ensuring the discharge of high-pressure gas from the air outlet 225.

[0038] According to one embodiment of the present invention, the second air guide pipe 6 includes two working positions. In the first working position, the embossing unit 22 performs embossing operation, and the second air guide pipe 6 is disposed in the air passage 212. In the second working position, the roller body 21 rotates, and the second air guide pipe 6 is separated from the air inlet 213.

[0039] With this design, when the embossing operation is performed, the outlet end of the second air guide pipe 6 is driven into the air channel 212, and the baffle of the second air guide pipe 6 abuts against the end face of the roller to form a seal, preventing the overflow of high-pressure gas; then high-pressure gas is injected into the second air guide pipe 6, and the high-pressure gas is discharged from the air outlet groove 225, acting on the surface of the garbage bag to realize the embossing operation; when the embossing operation is completed, the high-pressure gas supply is stopped, and the second air guide pipe 6 is driven to separate from the air channel 212 to avoid interference with the rotation of the roller.

[0040] According to one embodiment of the present invention, the frame 1 is provided with a sliding groove 13, and the second air guide pipe 6 is provided with a slider 61 that is slidably connected to the sliding groove 13; it also includes a cylinder 62 for driving the second air guide pipe 6 to slide, the cylinder body of the cylinder 62 is fixedly connected to the frame 1, and the piston rod of the cylinder 62 is fixedly connected to the second air guide pipe 6.

[0041] Achieving stable sliding switching of the second air guide tube: The sliding groove of the frame and the slider of the second air guide tube slide together, providing precise guidance for the movement of the second air guide tube, ensuring that it can slide smoothly along a fixed trajectory and switch smoothly between the first working position and the second working position, ensuring reliable conversion between the two working states.

[0042] According to one embodiment of the present invention, a heating roller 14 rotatably connected to the frame 1 is further included, the heating roller 14 being disposed on the feed side of the embossing assembly.

[0043] Optimized embossing conditions: The heated roller preheats the garbage bag before it enters the embossing assembly, making the plastic film material of the garbage bag softer and more elastic at an appropriate temperature. In this state, the garbage bag can be subjected to more even force during the subsequent embossing process, resulting in clearer and more stable indentations left by the embossing unit. This avoids insufficient embossing or damage caused by excessively hard material, thus improving the embossing quality.

[0044] Enhanced embossing durability: After embossing, the molecular structure of the preheated plastic film becomes more stable, and the embossed pattern is less likely to recover due to subsequent cooling or stress, thus making the embossing effect more durable and ensuring the long-term effectiveness of embossing in enhancing the toughness of garbage bags.

[0045] According to one embodiment of the present invention, the device further includes a swing assembly movably connected to the frame 1, the swing assembly reciprocating linearly along the garbage bag conveying direction; the swing assembly includes two spaced-apart and relatively fixed guide rollers; the swing assembly cooperates with the conveying of the garbage bag to keep the embossed section of the garbage bag relatively stationary with the embossing assembly in the first working position.

[0046] This design improves embossing accuracy and effect: the oscillating component reciprocates linearly along the direction of garbage bag transport, coordinating with the transport of the garbage bag to keep the embossing section of the garbage bag relatively stationary with the embossing component in the first working position. This relatively stationary state ensures that the embossing unit can perform stable and sufficient embossing work in specific areas of the garbage bag, avoiding misalignment, blurring, or incomplete embossing caused by displacement during garbage bag transport.

[0047] Coordinated transport and embossing rhythm: The reciprocating motion of the swing component works in harmony with the transport of the garbage bag, which not only does not affect the overall transport process, but also meets the stability requirements of the embossing operation by maintaining a relatively static state during embossing, thereby extending the embossing time of the high-pressure air jet and improving the embossing effect.

[0048] According to one embodiment of the present invention, the guide roller includes a feed roller 71 and a discharge roller 72 disposed on both sides of the embossing assembly and moving synchronously. A first drive assembly for driving the feed roller 71 and the discharge roller 72 to perform reciprocating linear motion is provided between the frame 1 and the feed roller 71 and the discharge roller 72.

[0049] This design allows the feed roller 71 and the discharge roller 72 to oscillate back and forth.

[0050] According to one embodiment of the present invention, the feed roller 71 and the discharge roller 72 have two working positions. In the third working position, the feed roller 71 is arranged adjacent to the embossing assembly, and the discharge roller 72 is arranged away from the embossing assembly. In the fourth working position, the feed roller 71 is arranged away from the embossing assembly, and the discharge roller 72 is arranged adjacent to the embossing assembly. When switching from the third working position to the fourth working position, the embossing assembly performs embossing operations.

[0051] In the third working position, the distance between the discharge roller 72 and the embossing assembly is large, and the garbage bag has a long winding allowance. At this time, the embossing roller can stop rotating, and the high-pressure gas continues to emboss the garbage bag. The feed roller 71 and the discharge roller 72 move to the fourth working position. The garbage bag wound up at the winding end is the winding allowance between the discharge roller 72 and the embossing assembly. When the embossing operation is completed, the embossing roller can rotate, and the feed roller 71 and the discharge roller 72 switch from the fourth working position to the third working position.

[0052] According to one embodiment of the present invention, it further includes a first pair of rollers 81 and a second pair of rollers 82, the projections of the first pair of rollers 81 and the second pair of rollers 82 on the horizontal plane being located between the projections of the feed roller 71 and the discharge roller 72 on the horizontal plane; the garbage bag is sequentially wound around the first pair of rollers 81, the feed roller 71, the discharge roller 72 and the second pair of rollers 82.

[0053] Stable garbage bag transport path: The garbage bag is sequentially wound around the first pair of rollers 81, the feed roller 71, the discharge roller 72, and the second pair of rollers 82. This winding method can provide multi-segment support and guidance for the garbage bag, ensuring that it maintains stable tension and direction during transport, while also providing a longer winding allowance and unwinding allowance.

[0054] According to one embodiment of the present invention, the first driving assembly includes a sliding rod 91, a feed roller 71 and a discharge roller 72, all of which are rotatably connected to the sliding rod 91; the driving assembly also includes a sprocket 92 and a chain 93 that are meshed together, and a motor 94 for driving the sprocket 92 to rotate forward or backward, and the chain 93 is fixedly connected to the slider 61.

[0055] This design enables synchronous reciprocating motion of the feed roller and the discharge roller: both the feed roller 71 and the discharge roller 72 are rotatably connected to the slide rod 91. When the slide rod 91 slides, it can drive the two to move synchronously, ensuring the consistency of the actions of the feed roller and the discharge roller.

[0056] The drive method is stable and controllable: the motor 94 drives the sprocket 92 to rotate forward or backward, and the meshing transmission between the sprocket 92 and the chain 93 drives the slide bar to move. This mechanical transmission method has stable power transmission and high precision, and can accurately control the movement speed, displacement and switching frequency of the feed roller and the discharge roller.

[0057] High structural reliability: The meshing transmission between the sprocket and the chain has high load-bearing capacity and wear resistance, which is suitable for the long-term operation of the device and reduces the probability of failure of the drive components.

[0058] According to one embodiment of the present invention, the embossing roller 2 is provided with a plurality of units along the conveying direction, and the embossing units are positioned in a staggered manner on the garbage bag. This can reduce the gap of the garbage bag indentation and improve the toughness of the garbage bag.

[0059] like Figure 19 As shown, in another specific embodiment, each of the embossing units 22 is provided with several sets of air outlet grooves 225, and each set of air outlet grooves 225 is staggered and extends in different directions.

[0060] This design reduces the size of the indentation while airflow is blown out from the air outlets in different directions, which can generate a slight, multi-directional airflow force on the surface of the garbage bag, further enhancing the disorder of the indentation and helping to improve the toughness of the garbage bag.

[0061] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A garbage bag embossing device, characterized in that, include: Rack (1); The embossing assembly includes an embossing roller (2) and a rubber roller (3) that cooperates with the embossing roller (2) for embossing, with the garbage bag sandwiched between the embossing roller (2) and the rubber roller (3); The embossing roller (2) includes a roller body (21) and an embossing unit (22) rotatably connected to the roller body (21). The rotation axis of the embossing unit (22) is perpendicular to the axis of the embossing roller (2). Several embossing units (22) are arranged along the axis of the embossing roller (2), and several embossing units (22) are arranged along the circumference of the roller body (21). The embossing unit (22) is provided with an arc surface (221) that matches the roller surface of the roller body (21) to form a circle. A rotation drive assembly is used to drive the rotation of the embossing unit (22).

2. The garbage bag embossing device according to claim 1, characterized in that, The rotation drive assembly includes a fan (4), the roller (21) is provided with a ventilation cavity (211), and the fan (4) is used to blow air into the ventilation cavity (211); the embossing unit (22) includes a rotating rod (222) provided in the ventilation cavity (211), and the rotating rod (222) is fixedly provided with a fan blade (223).

3. The garbage bag embossing device according to claim 2, characterized in that, An air passage (212) is provided inside the roller body (21). The embossing unit (22) is rotatably connected to the air passage (212). The embossing unit (22) is provided with a ventilation cavity (224). The ventilation cavity (224) is connected to the air passage (212). The arc surface (221) of the embossing unit (22) is provided with a plurality of air outlet grooves (225) that are connected to the ventilation cavity (224).

4. The garbage bag embossing device according to claim 3, characterized in that, The frame (1) is provided with a first vent (11), and the fan (4) is connected to the first vent (11); it also includes a first air guide pipe (5) disposed between the first vent (11) and the roller (21).

5. The garbage bag embossing device according to claim 4, characterized in that, The air inlet (51) of the first air duct (5) is slidably disposed in the first air vent (11), the air outlet (52) of the first air duct (5) is arranged in an arc, and the air outlet (52) of the first air duct (5) is inserted and engaged with the end of the ventilation cavity (211); a compression spring (53) is sandwiched between the first air duct (5) and the frame (1).

6. The garbage bag embossing device according to claim 3, characterized in that, The end face of the roller (21) is provided with an air inlet (213) communicating with the air passage (212), the frame (1) is provided with a second air inlet (12), and also includes a second air guide pipe (6) provided between the second air inlet (12) and the air inlet (213).

7. The garbage bag embossing device according to claim 6, characterized in that, The second air guide pipe (6) includes two working positions. In the first working position, the embossing unit (22) performs embossing operation, and the second air guide pipe (6) is located in the air passage (212). In the second working position, the roller (21) rotates, and the second air guide pipe (6) is separated from the air inlet (213).

8. The garbage bag embossing device according to claim 7, characterized in that, The frame (1) is provided with a slide groove (13), and the second air guide pipe (6) is provided with a slider (61) that is slidably connected to the slide groove (13); it also includes a cylinder (62) for driving the second air guide pipe (6) to slide, the cylinder body of the cylinder (62) is fixedly connected to the frame (1), and the piston rod of the cylinder (62) is fixedly connected to the second air guide pipe (6).

9. The garbage bag embossing device according to claim 1, characterized in that, It also includes a heating roller (14) rotatably connected to the frame (1), the heating roller (14) being disposed on the feed side of the embossing assembly.

10. The garbage bag embossing device according to claim 7, characterized in that, It also includes a swing assembly that is movably connected to the frame (1), the swing assembly reciprocating linearly along the garbage bag conveying direction; the swing assembly includes two spaced-apart and relatively fixed guide rollers; the swing assembly cooperates with the conveying of the garbage bag to keep the embossed section of the garbage bag relatively stationary with the embossing assembly in the first working position.

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