Garbage bag pull rope opening cutting device
By designing a garbage bag draw rope cutting device including a shell and a rotating draw rope cutting knife, the problem of difficulty in pulling out the draw rope during use of draw rope garbage bags is solved, and automatic cutting of the draw rope opening is realized, improving the convenience of use.
Patent Information
- Application Number
- CN202421585000.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In the prior art, the drawstring garbage bag needs to be pulled out when used, and the lack of effective cutting devices leads to inconvenience in use.
A garbage bag draw rope cutting device is designed, including a fixed shell and a rotary draw rope cutting knife. By cooperating with the conveying of the plastic film, the draw rope opening is cut on the plastic film.
It realizes that during the production process of rope pulling garbage bags, the rope pulling port is automatically cut, which is convenient to pull out when used, improving the convenience of use.
Smart Images
Figure CN222959353U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of garbage bag manufacturing, in particular to a cutting device for the drawstring opening of a garbage bag. Background Art
[0002] For a drawstring garbage bag, the drawstring provided inside the garbage bag can be pulled to tighten the bag opening, which is easy to seal. The drawstring can be directly used for lifting, making it convenient to move.
[0003] The characteristic of a drawstring garbage bag is that a drawstring is provided at the bag opening of an ordinary thin-film garbage bag. When manufacturing a drawstring garbage bag, the drawstring needs to be introduced into the plastic film and the drawstring and the plastic film need to be limited in position to make a drawstring garbage bag.
[0004] When a drawstring garbage bag is actually used, a notch is required to pull out the drawstring before the drawstring can be used. Therefore, a cutting device is now needed to form a drawstring opening in advance before threading the drawstring. Summary of the Utility Model
[0005] The purpose of the utility model is to overcome the defects existing in the prior art and provide a cutting device for the drawstring opening of a garbage bag, which can cut a drawstring opening at a corresponding position of the plastic film to facilitate the use of the drawstring garbage bag.
[0006] To achieve the above technical effects, the technical solution of the utility model is: a cutting device for the drawstring opening of a garbage bag, including a fixedly arranged housing, the axial direction of the housing is parallel to the conveying direction of the plastic film, a drawstring opening cutting knife is rotatably arranged inside the housing, the axial direction of the rotation axis of the drawstring opening cutting knife is parallel to the axial direction of the housing, the housing is provided with a threading groove for the plastic film to pass through, the extending direction of the threading groove is parallel to the axial direction of the housing, and the rotation path of the drawstring opening cutting knife and the threading groove have an overlapping part; the cross-section of the drawstring opening cutting knife is U-shaped.
[0007] Preferably, a support plate for supporting the plastic film is fixedly arranged in the threading groove, and the support plate is provided with a groove for the drawstring opening cutting knife to pass through.
[0008] Preferably, an exhaust cutting knife is rotatably arranged inside the housing, and the exhaust cutting knife is arranged in a staggered manner with the drawstring opening cutting knife.
[0009] Preferably, the exhaust cutting knife and the drawstring opening cutting knife are arranged in a back-to-back manner.
[0010] Preferably, a rotating shaft is rotatably arranged inside the housing, the axial line direction of the rotating shaft is parallel to the axial line direction of the housing, and a motor for driving the rotating shaft to rotate is further included; both the drawstring cutting knife and the exhaust cutting knife are detachably and fixedly connected to the rotating shaft.
[0011] Preferably, a cover plate detachably and fixedly connected to the housing is further included, and the cover plate is provided with a support groove for plugging and cooperating with the support plate.
[0012] Preferably, the cover plate is provided with a proximity switch, and the detection end of the proximity switch is arranged adjacent to the rotation path of the drawstring cutting knife.
[0013] Preferably, the housing is provided with a blowing pipeline communicated with its inner cavity, the blowing pipeline is arranged above the groove, the axial line direction of the blowing pipeline is perpendicular to the axial line direction of the housing, and the drawstring cutting knife is provided with an opening for air flow to pass through.
[0014] Preferably, the housing is provided with a suction pipeline communicated with its inner cavity, the suction pipeline is arranged below the groove, and the diameter of the suction pipeline is larger than the diameter of the blowing pipeline.
[0015] Preferably, the cover plate is a glass cover plate.
[0016] The advantages and beneficial effects of the present utility model are as follows: The drawstring cutting device for garbage bags of the present utility model has a reasonable structure. By rotatably arranging the drawstring cutting knife and cooperating with the conveying of the plastic film, a drawstring opening is cut out on the plastic film, which is convenient for pulling out the drawstring when using the drawstring garbage bag. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of an embodiment of the drawstring cutting device for garbage bags of the present utility model;
[0018] Figure 2 is Figure 1 an exploded schematic diagram of
[0019] Figure 3 is a schematic diagram of the internal state of the housing when the exhaust cutting knife cuts;
[0020] Figure 4 is a schematic structural diagram of the housing;
[0021] Figure 5 is a schematic structural diagram of the cover plate;
[0022] In the figure: 1. housing; 11. through slot; 12. blowing pipeline; 13. suction pipeline; 2. drawstring opening cutter; 21. opening; 3. support plate; 31. groove; 4. exhaust cutter; 5. rotating shaft; 6. motor; 7. cover plate; 71. support groove; 8. proximity switch. Detailed implementation manners
[0023] The following combines the accompanying drawings and embodiments to further describe the detailed implementation manners of the present utility model. The following embodiments are only used to more clearly illustrate the technical solutions of the present utility model and cannot be used to limit the protection scope of the present utility model.
[0024] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings. These are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Embodiment
[0025] As Figures 1-5 shown, the drawstring opening cutting device for garbage bags in the embodiment includes a fixedly arranged housing 1. The axial line direction of the housing 1 is parallel to the conveying direction of the plastic film. A drawstring opening cutter 2 is rotatably arranged in the housing 1. The axial line direction of the rotation axis of the drawstring opening cutter 2 is parallel to the axial line direction of the housing 1. The housing 1 is provided with a through slot 11 for the plastic film to pass through. The extending direction of the through slot 11 is parallel to the axial line direction of the housing 1. The rotation path of the drawstring opening cutter 2 and the through slot 11 have an overlapping part; the cross-section of the drawstring opening cutter 2 is U-shaped.
[0026] Through such a design, the U-shaped drawstring opening cutter 2 cuts out a U-shaped drawstring opening. The rotation of the drawstring opening cutter 2 cooperates with the transmission of the plastic film to cut out drawstring openings at intervals on the plastic film, which is convenient for pulling out the drawstring when using a drawstring garbage bag.
[0027] Furthermore, a support plate 3 for supporting the plastic film is fixedly arranged in the through slot 11. The support plate 3 is provided with a groove 31 for the drawstring opening cutter 2 to pass through.
[0028] Through such a design, when the drawstring opening cutter 2 cuts the plastic film, the plastic film can be supported by the support plate 3, ensuring the cutting and forming of the drawstring opening.
[0029] Further, an exhaust cutting knife 4 is rotatably arranged in the housing 1, and the exhaust cutting knife 4 is arranged in a dislocation manner with the drawstring port cutting knife 2.
[0030] Through such a design, more exhaust ports can be formed. When the garbage bag is wound and formed, the air in the plastic film limiting the drawstring can be discharged from the exhaust ports and the drawstring ports.
[0031] Further, the exhaust cutting knife 4 and the drawstring port cutting knife 2 are arranged back to back.
[0032] Through such a design, the distance between the exhaust port and the drawstring port can be maximized, ensuring the smoothness of exhaust.
[0033] Specifically, a rotating shaft 5 is rotatably arranged in the housing 1. The axis direction of the rotating shaft 5 is parallel to the axis direction of the housing 1. It further includes a motor 6 for driving the rotating shaft 5 to rotate; both the drawstring port cutting knife 2 and the exhaust cutting knife 4 are detachably and fixedly connected to the rotating shaft 5.
[0034] Through such a design, the rotation of the drawstring port cutting knife 2 and the exhaust cutting knife 4 is realized, and the replaceability of the drawstring port cutting knife 2 and the exhaust cutting knife 4 is also ensured.
[0035] Specifically, it further includes a cover plate 7 detachably and fixedly connected to the housing 1. The cover plate 7 is provided with a support groove 71 in plug-in fit with the support plate 3.
[0036] Through such a design, the suspended end of the support plate 3 can be supported, ensuring the stability of the support plate 3.
[0037] Specifically, the cover plate 7 is provided with a proximity switch 8. The detection end of the proximity switch 8 is arranged adjacent to the rotation path of the drawstring port cutting knife 2.
[0038] Through such a design, the drawstring port cutting knife 2 can be positioned to judge how much the plastic film has traveled after one revolution, ensuring the production accuracy; the proximity switch 8 is preferably the Yangming proximity switch PL-05N.
[0039] Further, the housing 1 is provided with a blowing pipeline 12 communicated with its inner cavity. The blowing pipeline 12 is arranged above the groove 31. The axis direction of the blowing pipeline 12 is perpendicular to the axis direction of the housing 1. The drawstring port cutting knife 2 is provided with an opening 21 for the air flow to pass through.
[0040] Through such a design, the cut waste can be blown away from the plastic film transmission line, avoiding the influence of the waste on the formation of the garbage bag.
[0041] Further, the housing 1 is provided with an air suction pipe 13 communicating with its inner cavity. The air suction pipe 13 is arranged below the groove 31, and the diameter of the air suction pipe 13 is larger than that of the air blowing pipe 12.
[0042] Through such a design, the cut waste can be sucked and collected under negative pressure, avoiding the accumulation of waste in the housing 1.
[0043] Specifically, the cover plate 7 is a glass cover plate.
[0044] Through such a design, it is convenient to timely observe the situation inside the housing 1, whether it is necessary to clean the waste inside the housing 1 or replace the pull cord cutting knife 2 and the exhaust cutting knife 4.
[0045] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.
Claims
1. A garbage bag drawstring cutting device, characterized in that: The invention comprises a fixed shell (1), wherein the axis direction of the shell (1) is parallel to the conveying direction of the plastic film, a drawstring opening cutting knife (2) is rotatably arranged in the shell (1), the axis direction of the rotation axis of the drawstring opening cutting knife (2) is parallel to the axis direction of the shell (1), the shell (1) is provided with a through groove (11) for the plastic film to pass through, the extension direction of the through groove (11) is parallel to the axis direction of the shell (1), and the rotation path of the drawstring opening cutting knife (2) and the through groove (11) have an overlapping portion; the cross section of the drawstring opening cutting knife (2) is arranged in a U-shape.
2. The garbage bag drawstring cutting device according to claim 1, characterized in that: The penetration groove (11) is fixedly provided with a support plate (3) for supporting the plastic film, and the support plate (3) is provided with a groove (31) for the rope-drawing opening cutting knife (2) to pass through.
3. The garbage bag drawstring cutting device according to claim 1, characterized in that: An exhaust cutting knife (4) is rotatably arranged in the housing (1), and the exhaust cutting knife (4) is staggered with the rope-drawing opening cutting knife (2).
4. The garbage bag drawstring cutting device according to claim 3, characterized in that: The exhaust cutting knife (4) and the rope opening cutting knife (2) are arranged opposite to each other.
5. The garbage bag drawstring cutting device according to claim 4, characterized in that: A rotating shaft (5) is rotatably arranged in the shell (1), the axis direction of the rotating shaft (5) being parallel to the axis direction of the shell (1), and also comprising a motor (6) for driving the rotating shaft (5) to rotate; the rope-drawing cutter (2) and the exhaust cutter (4) are both detachably fixedly connected to the rotating shaft (5).
6. The garbage bag drawstring cutting device according to claim 2, characterized in that: It also comprises a cover plate (7) which is detachably fixedly connected to the housing (1), and the cover plate (7) is provided with a support groove (71) which is plug-fitted with the support plate (3).
7. The garbage bag drawstring cutting device according to claim 6, characterized in that: The cover plate (7) is provided with a proximity switch (8), and the detection end of the proximity switch (8) is arranged adjacent to the rotation path of the rope-drawing opening cutting knife (2).
8. The garbage bag drawstring cutting device according to claim 2, characterized in that: The shell (1) is provided with an air blowing pipe (12) communicating with its inner cavity, the air blowing pipe (12) is arranged above the groove (31), the axis direction of the air blowing pipe (12) is perpendicular to the axis direction of the shell (1), and the rope cutter (2) is provided with an opening (21) for air flow to pass through.
9. The garbage bag drawstring cutting device according to claim 8, characterized in that: The housing (1) is provided with an air suction pipe (13) communicating with its inner cavity; the air suction pipe (13) is arranged below the groove (31); and the diameter of the air suction pipe (13) is greater than the diameter of the air blowing pipe (12).
10. The garbage bag drawstring cutting device according to claim 6, characterized in that: The cover plate (7) is a glass cover plate.