Garbage bag heat sealing structure

Abstract

The utility model belongs to the technical field of intelligent garbage cans, and particularly relates to a garbage bag heat-sealing structure which is characterized in that when a garbage bag is heat-sealed, a driving motor drives an intermediate gear, a first driving gear and a second driving gear of a first transmission component; the first driving gear drives the first synchronous belt mechanism and the third synchronous belt mechanism, the first synchronous belt mechanism drives the second synchronous belt mechanism, and the third synchronous belt mechanism drives the fourth synchronous belt mechanism; and the second driving gear of the first transmission assembly drives the fifth synchronizing mechanism. And meanwhile, the second clamping plate moves towards the first clamping plate, the folded garbage bag is pressed on the first clamping plate, and the garbage bag is heat-sealed and cut off through the electric heating element. The driving motor is adopted, and synchronous operation of the two folding clamping plates and the second clamping plate is achieved through the first transmission assembly, the second transmission assembly and the five sets of synchronous belt mechanisms. And smooth and stable movement of the two folding clamping plates and the second clamping plate can be ensured.

Description

Technical Field

[0001] This utility model belongs to the field of intelligent trash can technology, and in particular relates to a heat-sealing structure for trash bags. Background Technology

[0002] Currently, smart home products are continuously improving people's quality of life, and smart trash cans are one such example. Trash cans are a common household product used in daily life. As people pursue a higher quality home environment, trash cans have gradually evolved from simple, basic models to modern smart trash cans.

[0003] Chinese utility model patent document CN212557737U discloses a trash can and its trash bag sealing device, including a base plate, a trash bag gathering component and a trash bag sealing component disposed on the base plate, with a trash inlet formed in the center of the base plate; the trash bag sealing component includes a hot-pressing crossbar and an electric heating crossbar mounted on the base plate, and a first driving component for driving the hot-pressing crossbar and the electric heating crossbar to move closer or further apart; the trash bag gathering component includes two bag gathering crossbars slidably disposed on the base plate and located on opposite sides of the base plate, and a second driving component for driving the two bag gathering crossbars to move together and move closer or further apart, the movement direction of the hot-pressing crossbar and the electric heating crossbar intersects with the movement direction of the two bag gathering crossbars, and the trash bag can be gathered when the two bag gathering crossbars move closer together. When the trash can is packing the trash bag, the second driving component drives the two bag gathering crossbars to move closer together, thereby gathering the plastic film of the trash bag to the middle position of the trash can opening and making the plastic film folded and evenly distributed, and finally the trash bag is packed by the trash bag sealing component.

[0004] The first drive assembly includes two first rotating shafts, two second rotating wheels fixedly mounted at both ends of the two first rotating shafts, and a first motor for driving the second rotating wheels to rotate. The second rotating wheels on the same side of the two first rotating shafts are connected by a chain or a synchronous belt. An electric heating crossbar is fixed on one side of the substrate, and a hot pressing crossbar is provided on the other side of the substrate. The two ends of the hot pressing crossbar are fixedly connected to a chain or a synchronous belt. When the first motor drives the chain or synchronous belt to move, it drives the hot pressing crossbar to move closer to or away from the electric heating crossbar. The first motor rotates the second rotating wheel and the first rotating shaft. The second rotating wheel drives the chain or synchronous belt to rotate. The chain or synchronous belt drives the hot-pressing crossbar to move closer to or away from the electric heating crossbar. Finally, the hot-pressing crossbar and the electric heating crossbar cooperate to achieve the heat sealing of the garbage bag. In this case, the garbage bag sealing assembly and the garbage bag gathering assembly are two independent structures. In actual operation, the second motor can be started first to move the two bag gathering crossbars towards each other, gathering the plastic film of the garbage bag to the middle position of the garbage can opening. Then, the first motor can be started to move the hot-pressing crossbar towards the electric heating crossbar and press it together. After the electric heating wire is energized, the plastic film of the garbage bag can be heat-melted and sealed and cut.

[0005] The second drive assembly includes at least one first rotating shaft. A left-handed lead screw is fitted onto one end of the first rotating shaft, and a right-handed lead screw is fitted onto the other end. The left-handed and right-handed lead screws are rotatable relative to the first rotating shaft, and their ends, close to each other, are fixedly connected. The assembly also includes a second motor for driving the left-handed and right-handed lead screws to rotate. One end of each of the two bag-gathering crossbars is threaded onto the left-handed and right-handed lead screws, respectively, and the other ends of the crossbars are slidably connected to a base plate. The rotation of the second motor drives the left-handed and right-handed lead screws to rotate, which in turn drives the two bag-gathering crossbars to move together, moving closer to or further away from each other. When the garbage bag is being sealed, the second motor drives the left-handed and right-handed lead screws to rotate relative to the first rotating shaft. The left-handed and right-handed lead screws drive the two bag-gathering crossbars to move closer to each other and gather the plastic film of the garbage bag to the middle of the garbage can opening. Finally, the garbage bag is sealed by a garbage bag sealing assembly.

[0006] In the technical solution disclosed in the aforementioned patent documents, two drive mechanisms are used to drive the hot-pressing crossbar and the two bag-gathering crossbars to move. The two drive mechanisms require high precision coordination to achieve synchronous operation; if there is a time difference between the two drive mechanisms during operation, it will lead to jamming. In addition, as the operating time increases, the drive mechanisms will wear and form gaps. Due to the existence of gaps, the gaps between the two drive mechanisms will be inconsistent, thus causing jamming during operation. Utility Model Content

[0007] The purpose of this utility model is to provide a garbage bag heat-sealing structure to solve the problem of jamming that occurs in existing garbage bag heat-sealing mechanisms that are driven by two drive mechanisms.

[0008] To achieve the above objectives, this utility model provides a garbage bag heat-sealing structure, including a frame, a first guide rod, a second guide rod, a closing clamping plate, a first clamping plate, a second clamping plate, a first transmission assembly, a second transmission assembly, a drive motor, a first synchronous belt mechanism, a second synchronous belt mechanism, a third synchronous belt mechanism, a fourth synchronous belt mechanism, and a fifth synchronous belt mechanism.

[0009] Two first guide rods are arranged parallel to each other on both sides of the frame, and two second guide rods are arranged parallel to each other at both ends of the frame; the two ends of the two closing clamps are slidably connected to the two second guide rods, and the closing clamps are provided with guide grooves along their length; the two ends of the first clamps and the second clamps pass through the guide grooves of the two closing clamps, and the two ends of the first clamps or / and the second clamps are slidably connected to the two first guide rods; an electric heating element is provided on the side of the first clamp near the second clamp;

[0010] The frame has a first mounting position, a second mounting position, a third mounting position, and a fourth mounting position at its four corners, respectively; the first transmission component is located at the first mounting position, and the second transmission component is located at the second mounting position; the first transmission component and the second transmission component are gear components with the same structure, including an intermediate gear, and a first drive gear and a second drive gear meshing on both sides of the intermediate gear; the drive motor is connected to the intermediate gear of the first transmission component;

[0011] The first synchronous belt mechanism connects the first drive gear of the first transmission assembly and the first drive gear of the second transmission assembly; the second synchronous belt mechanism connects the second drive gear of the second transmission assembly and the third mounting position; the third synchronous belt mechanism connects the first drive gear of the first transmission assembly and the fourth mounting position, and the fourth synchronous belt mechanism connects the third mounting position and the third synchronous belt mechanism; the fifth synchronous belt mechanism connects the second drive gear of the first transmission assembly and the fourth mounting position; the synchronous belts of the first synchronous belt mechanism and the third synchronous belt mechanism are respectively connected to both ends of the second clamping plate; the synchronous belt of the second synchronous belt mechanism is connected to the same end of the two closing clamping plates, and the synchronous belts of the fifth synchronous belt mechanism are all connected to the other ends of the two closing clamping plates.

[0012] Furthermore, both ends of the first clamping plate are fixedly connected to the two second guide rods.

[0013] Furthermore, the heating element includes two heat-sealed heating wires and a cutting heating wire, wherein the cutting heating wire is located between the two heat-sealed heating wires.

[0014] Furthermore, one or both ends of the cutting heating wire are provided with tension springs to tighten the cutting heating wire.

[0015] Furthermore, the two closing clamps have an inwardly extending extension at one end near the second clamp, and the guide groove extends to the extension; an arc-shaped guide surface is provided between the extension and the closing clamp.

[0016] Furthermore, the inner side of the second clamping plate is also provided with a rubber pad.

[0017] Furthermore, the effective heating length of the heating element is greater than the minimum distance between the two closing clamps after they are closed.

[0018] The above-mentioned technical solutions in the heat-sealing structure of the garbage bag provided in this embodiment of the utility model have at least the following technical effects:

[0019] This utility model's garbage bag heat-sealing structure, during the heat-sealing process, utilizes a drive motor to drive the intermediate gear, first drive gear, and second drive gear of the first transmission assembly. The first drive gear drives the first and third synchronous belt mechanisms, which in turn drive the second synchronous belt mechanism, which in turn drives the fourth synchronous belt mechanism. Furthermore, the second drive gear of the first transmission assembly drives the fifth synchronous mechanism. This drives the two closing clamps to move towards each other, closing the garbage bag. Simultaneously, the second clamp moves towards the first clamp, pressing the closed garbage bag firmly onto the first clamp. The garbage bag is then heat-sealed and cut using an electric heating element. Because a single drive motor, along with the first and second transmission assemblies and five sets of synchronous belt mechanisms, ensures the synchronous operation of the two closing clamps and the second clamp, guaranteeing smooth and stable movement and preventing jamming. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.

[0021] Figure 1 This is a structural diagram of the heat-sealing structure of the garbage bag provided in an embodiment of the present utility model.

[0022] Figure 2 This is a front view of the heat-sealing structure of the garbage bag provided in an embodiment of the present utility model.

[0023] Figure 3 This is a structural diagram of the other side of the bin for the heat-sealing structure of the garbage bag provided in an embodiment of this utility model. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0025] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0028] In one embodiment of the heat-sealing structure for garbage bags of this utility model, please refer to... Figures 1 to 3 The garbage bag heat-sealing structure is used on automatic garbage bins to achieve automatic packaging and cutting of garbage bags. Specifically, the garbage bag heat-sealing structure includes a frame 100, a first guide rod 200, a second guide rod 300, a closing clamping plate 400, a first clamping plate 500, a second clamping plate 600, a first transmission assembly 700, a second transmission assembly 800, a drive motor 900, a first synchronous belt mechanism 110, a second synchronous belt mechanism 120, a third synchronous belt mechanism 130, a fourth synchronous belt mechanism 140, and a fifth synchronous belt mechanism 150.

[0029] Two first guide rods 200 are arranged parallel to each other on both sides of the frame 100, and two second guide rods 300 are arranged parallel to each other at both ends of the frame 100. The two ends of two closing clamping plates 400 are slidably connected to the two second guide rods 300, and the closing clamping plates 400 are provided with guide grooves 401 along their length. The two ends of the first clamping plate 500 and the second clamping plate 600 pass through the guide grooves 401 of the two closing clamping plates 400, and the two ends of the first clamping plate 500 and / or the second clamping plate 600 are slidably connected to the two first guide rods 200. A heating element 160 is provided on the side of the first clamping plate 500 near the second clamping plate 600. Preferably, to facilitate the connection of the heating element 160 to electricity, the two ends of the first clamping plate 500 are fixedly installed at one end of the second guide rod 300.

[0030] The frame 100 has four corner positions with a first mounting position 101, a second mounting position 102, a third mounting position 103, and a fourth mounting position 104, respectively. A first transmission assembly 700 is located at the first mounting position 101, and a second transmission assembly 800 is located at the second mounting position 102. Both the first and second transmission assemblies 700 are identical gear assemblies, including an intermediate gear and a first and second drive gear meshing on both sides of the intermediate gear. A drive motor 900 is connected to the intermediate gear 701 of the first transmission assembly 700.

[0031] The first synchronous belt mechanism 110 connects the first drive gear 701 of the first transmission assembly 700 and the first drive gear 801 of the second transmission assembly 800. The second synchronous belt mechanism 120 connects the second drive gear 802 of the second transmission assembly 800 and the third mounting position 103; the third synchronous belt mechanism 130 connects the first drive gear 701 of the first transmission assembly 700 and the fourth mounting position 104; the fourth synchronous belt mechanism 140 connects the third mounting position 103 and the third synchronous belt mechanism 130. The fifth synchronous belt mechanism 150 connects the second drive gear 702 of the first transmission assembly 700 and the fourth mounting position 104. The synchronous belts of the first synchronous belt mechanism 110 and the third synchronous belt mechanism 130 are respectively connected to both ends of the second clamping plate 600. The synchronous belt of the second synchronous belt mechanism 120 connects to the same end of the two closing clamping plates 400, and the synchronous belts of the fifth synchronous belt mechanism 150 are all connected to the other ends of the two closing clamping plates 400.

[0032] Further, please refer to Figures 1 to 3 The ratio of the number of meshing teeth between the intermediate gear and the first drive gear and the second drive gear is determined based on the moving stroke of the closing clamping plate 400 and the second clamping plate 600.

[0033] Specifically, in this embodiment, the garbage bag heat-sealing structure, during the heat-sealing of the garbage bag, is driven by a drive motor 900, which drives the intermediate gear 703, the first drive gear 701, and the second drive gear 702 of the first transmission assembly 700. The first drive gear 701 drives the first synchronous belt mechanism 110 and the third synchronous belt mechanism 130. The first synchronous belt mechanism 110 then drives the second synchronous belt mechanism 120, and the third synchronous belt mechanism 130 drives the fourth synchronous belt mechanism 140. The second drive gear 702 of the first transmission assembly 700 drives the fifth synchronous mechanism 150. This drives the two closing clamps 400 to move towards each other, closing the garbage bag. Simultaneously, the second clamp 600 moves towards the first clamp 500, pressing the closed garbage bag onto the first clamp 500. The garbage bag is then heat-sealed and cut by the heating element 160. Because a single drive motor 900 is used, and the first transmission assembly 110, the second transmission assembly 120, and five sets of synchronous belt mechanisms enable the two closing clamps 400 and the second clamp 600 to operate synchronously. It can ensure that the two closing clamps 400 and the second clamp 600 can move smoothly and stably, avoiding the problem of jamming.

[0034] For further details, please refer to... Figures 1 to 3 The heating element 160 includes two heat-sealed heating wires 161 and a cutting heating wire 162, with the cutting heating wire 162 located between the two heat-sealed heating wires 161. In this embodiment, the two heat-sealed heating wires 161 complete the sealing of the garbage bag and the sealing of the bottom of the next garbage bag, and the cutting heating wire 162 cuts the garbage bag between the two seals.

[0035] For further details, please refer to... Figures 1 to 3 One or both ends of the cutting heating wire 161 are provided with tension springs 163 to tighten the cutting heating wire 161. Specifically, this prevents the cutting heating wire 161 from bending due to thermal expansion after it is energized and heated.

[0036] For further details, please refer to... Figures 1 to 3 Each of the two closing clamping plates 400 has an inwardly extending portion 410 at one end near the second clamping plate 600, and a guide groove 401 extends to the extension portion 410; an arc-shaped guide surface 411 is provided between the extension portion 410 and the closing clamping plate 400. In this embodiment, when the two closing clamping plates 400 close the garbage bag, they can effectively guide the garbage bag, making it easier for the edges of the garbage bag to roll inward, ensuring a heat-sealing effect.

[0037] For further details, please refer to... Figures 1 to 3 The inner side of the second clamping plate 600 is also provided with a rubber pad 601. The rubber pad 601 presses the garbage bag tightly onto the first clamping plate 500, thereby ensuring that the heating element 160 can effectively and stably heat-seal and cut the garbage bag.

[0038] For further details, please refer to... Figures 1 to 3The effective heating length of the heating element 160 is greater than the minimum distance between the two closing clamps 400 after they are closed. Therefore, after the closing clamps 400 close the garbage bag, it can ensure that the garbage bag is completely within the effective heating range of the heating element 160, avoiding any leakage.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-sealing structure for garbage bags, characterized in that, It includes a frame, a first guide rod, a second guide rod, a closing clamping plate, a first clamping plate, a second clamping plate, a first transmission assembly, a second transmission assembly, a drive motor, a first synchronous belt mechanism, a second synchronous belt mechanism, a third synchronous belt mechanism, a fourth synchronous belt mechanism, and a fifth synchronous belt mechanism; Two first guide rods are arranged parallel to each other on both sides of the frame, and two second guide rods are arranged parallel to each other at both ends of the frame; the two ends of the two closing clamps are slidably connected to the two second guide rods, and the closing clamps are provided with guide grooves along their length; the two ends of the first clamps and the second clamps pass through the guide grooves of the two closing clamps, and the two ends of the first clamps or / and the second clamps are slidably connected to the two first guide rods; an electric heating element is provided on the side of the first clamp near the second clamp; The frame has a first mounting position, a second mounting position, a third mounting position, and a fourth mounting position at its four corners, respectively; the first transmission component is located at the first mounting position, and the second transmission component is located at the second mounting position; the first transmission component and the second transmission component are gear components with the same structure, including an intermediate gear, and a first drive gear and a second drive gear meshing on both sides of the intermediate gear; the drive motor is connected to the intermediate gear of the first transmission component; The first synchronous belt mechanism connects the first drive gear of the first transmission assembly and the first drive gear of the second transmission assembly; the second synchronous belt mechanism connects the second drive gear of the second transmission assembly and the third mounting position; the third synchronous belt mechanism connects the first drive gear of the first transmission assembly and the fourth mounting position, and the fourth synchronous belt mechanism connects the third mounting position and the third synchronous belt mechanism; the fifth synchronous belt mechanism connects the second drive gear of the first transmission assembly and the fourth mounting position; the synchronous belts of the first synchronous belt mechanism and the third synchronous belt mechanism are respectively connected to both ends of the second clamping plate; the synchronous belt of the second synchronous belt mechanism is connected to the same end of the two closing clamping plates, and the synchronous belts of the fifth synchronous belt mechanism are all connected to the other ends of the two closing clamping plates.

2. The heat-sealing structure for garbage bags according to claim 1, characterized in that: The two ends of the first clamping plate are fixedly connected to the two second guide rods.

3. The heat-sealing structure for garbage bags according to claim 1, characterized in that: The heating element includes two heat-sealed heating wires and a cutting heating wire, with the cutting heating wire located between the two heat-sealed heating wires.

4. The heat-sealing structure for garbage bags according to claim 3, characterized in that: One or both ends of the cutting heating wire are provided with tension springs to tighten the cutting heating wire.

5. The garbage bag heat-sealing structure according to any one of claims 1 to 4, characterized in that: The two clamping plates have an inwardly extending portion at one end near the second clamping plate, and the guide groove extends to the extension portion; an arc-shaped guide surface is provided between the extension portion and the clamping plate.

6. The garbage bag heat-sealing structure according to any one of claims 1 to 4, characterized in that: The inner side of the second clamping plate is also provided with a rubber pad.

7. The garbage bag heat-sealing structure according to any one of claims 1 to 4, characterized in that: The effective heating length of the heating element is greater than the minimum distance between the two closing clamps after they are closed.

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