Chopstick bagging device and method

Abstract

The invention relates to the technical field of bagging, in particular to a chopstick bagging device and method.The chopstick bagging device comprises a conveying assembly with an annular conveying chain / belt, the annular conveying chain / belt is provided with a feeding side and a discharging side, and a plurality of material grooves are formed in the outer annular face of the annular conveying chain / belt; a bag opening structure located on the discharging side and a lifting assembly driving the discharging side of the annular conveying chain / belt to move in the bag opening structure in the Z-axis direction are arranged on the conveying assembly, and a counterweight assembly movably connected with the conveying assembly in the Z-axis direction and moving with the feeding side of the annular conveying chain / belt is further arranged on the conveying assembly. And the movement direction of the lifting assembly is opposite to that of the counterweight assembly, so that the annular conveying chain / belt does telescopic movement. According to the automatic chopstick bagging machine, ordered bagging of chopsticks is achieved, the requirement for manual intervention is reduced, the whole bagging process is carried out according to an automatic process, the production efficiency is improved, and the production process is more efficient and stable.

Description

Technical Field

[0001] The present invention relates to the technical field of bagging, and more particularly, to a chopstick bagging device and method. Background Art

[0002] In the existing chopstick bagging technology, chopsticks are often only moved to the bag opening through a conveyor belt, and the chopsticks fall from the bag opening to the bottom of the bag.

[0003] During this process, it is necessary for workers to fully unfold the bag, and the chopsticks will be randomly stacked at the bottom of the bag. The random stacking of chopsticks may lead to uneven spatial distribution in the packaging bag, reducing the actual accommodating space in the bag. To reach the standard quantity, it may be necessary to increase the size of the packaging bag, increasing the material cost; or manual intervention is required to adjust the position of the chopsticks, reducing the automation efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a chopstick bagging device and method, aiming to solve the problems existing in the current technology.

[0005] In one aspect, the present invention provides a chopstick bagging device, including a conveying assembly with a ring conveyor chain / belt. The ring conveyor chain / belt has a loading side and an unloading side, and a plurality of material grooves are provided on the outer circumferential surface of the ring conveyor chain / belt. A bag supporting structure is provided on the conveying assembly at the unloading side, and a lifting assembly is provided to drive the unloading side of the ring conveyor chain / belt to move along the Z-axis direction within the bag supporting structure. A counterweight assembly is also provided on the conveying assembly, which is movably connected to the conveying assembly in the Z-axis direction and is movable with the loading side of the ring conveyor chain / belt. The movement directions of the lifting assembly and the counterweight assembly are opposite, so as to make the ring conveyor chain / belt perform telescopic movement.

[0006] In some embodiments of the present application, the lifting assembly includes two first lifting plates respectively slidably connected to the conveying assembly in the Z-axis direction. The two first lifting plates are connected to a synchronous lifting drive mechanism, and the unloading side of the ring conveyor chain / belt is located within the space between the two first lifting plates, and the movement of the first lifting plates drives the unloading side of the ring conveyor chain / belt to move within the bag supporting structure.

[0007] In some embodiments of the present application, a first shaft body is provided between the lower ends of the two first lifting plates, and a first rotating member meshing with the ring conveyor chain / belt is provided on the first shaft body.

[0008] In some embodiments of the present application, the synchronous lifting drive structure is any one of a gear-rack drive mechanism and a linear drive structure, and a guiding structure is provided between the first lifting plate and the conveying assembly.

[0009] In some embodiments of the present application, the synchronous lifting drive mechanism includes a rack fixedly provided on the first lifting plate, a drive gear meshing with the corresponding rack is provided on the conveying assembly, the two drive gears rotate synchronously through a synchronous transmission structure, and one of the drive gears is connected to a first drive motor.

[0010] In some embodiments of the present application, the movement stroke of the counterweight assembly in the Z-axis direction is greater than the movement stroke of the discharge side of the annular conveyor chain / belt in the Z-axis direction.

[0011] In some embodiments of the present application, the counterweight assembly includes two counterweight plates respectively slidably connected to the conveying assembly in the Z-axis direction. At least a part of the loading side of the annular conveyor chain / belt is located in the space formed between the two counterweight plates. A second shaft body is provided between the two counterweight plates, and a second rotating member meshing with the annular conveyor chain / belt is provided on the second shaft body.

[0012] In some embodiments of the present application, the bag supporting structure includes two cantilever bag supporting rods with one end fixed to the conveying assembly.

[0013] In some embodiments of the present application, the loading side of the annular conveyor chain / belt is inclined, the discharge side of the annular conveyor chain / belt is vertical, the conveying assembly includes bottom feet, two side baffles are provided on the bottom feet, the two side baffles are connected by a strengthening member, and a second drive motor for the annular conveyor chain / belt to move is formed between the two side baffles.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention realizes the conveyance of materials by arranging a plurality of material slots on the annular conveying chain / belt of the conveying assembly, and realizes the movement of the discharge side of the annular conveying chain / belt along the Z-axis direction within the bag-supporting structure through the lifting assembly, thereby realizing the orderly stacking of materials during the bagging process. At the beginning of bagging, the lifting assembly drives the discharge side of the annular conveying chain / belt to extend into the bottom of the bag of the bag-supporting structure and reserves a height difference for stacking materials. When bagging starts, the lifting assembly drives the discharge side of the annular conveying chain / belt to gradually move upward along the Z-axis direction, and the moving speed matches the material stacking speed, avoiding the contact between the materials in the bag and the annular conveying chain / belt and affecting the stacking of materials, thereby realizing the orderly stacking of materials during bagging. At the same time, when the lifting assembly moves along the Z-axis direction, the counterweight assembly moves in the opposite direction of the movement of the lifting assembly, so that the discharge side of the annular conveying chain / belt can still maintain a tightened state under the condition of expansion and contraction, realizing the sustainable operation of the material bagging operation. Compared with the prior art, the present invention realizes the orderly bagging of chopsticks, reduces the need for manual intervention, and the entire bagging process can be carried out more smoothly according to the automated process, greatly improving the production efficiency and making the production process more efficient and stable.

[0015] On the other hand, the present application also provides a method for bagging chopsticks, and the method for bagging chopsticks includes the following steps: S1. Expand and fix the bag to the bag-supporting structure, and the lifting assembly causes the discharge side of the annular conveying chain / belt to extend downward along the Z-axis direction into the bag, and the counterweight assembly is forced to move upward, and a height difference is reserved between the discharge side of the annular conveying chain / belt and the inner bottom of the bag; S2. Start the annular conveying chain / belt, and put the materials to be bagged into the material slots on the feeding side of the annular conveying chain / belt one by one. The annular conveying chain / belt conveys the materials from the feeding side to the discharge side and drops them into the bag in S1 one by one. As the material level in the bag gradually rises during bagging, the lifting assembly drives the discharge side of the annular conveying chain / belt to move upward in the Z-axis direction, and the counterweight assembly is forced to move downward, so as to fill the entire bag, that is, the bagging is completed.

[0016] It can be understood that a method for bagging chopsticks proposed by the present application has the same beneficial effects as the above-mentioned chopstick bagging device, and will not be repeated here. Description of the Drawings

[0017] By reading the detailed description of the preferred embodiments below, various other advantages and benefits will become clear to those of ordinary skill in the art. The drawings are only for the purpose of showing the preferred embodiments and are not considered to be a limitation of the present invention. Moreover, throughout the drawings, the same reference numerals are used to represent the same components. In the drawings: Figure 1Schematic perspective view of a chopstick bagging device provided by an embodiment of the present invention; Figure 2 Schematic perspective view of a chopstick bagging device provided by an embodiment of the present invention with the bag removed; Figure 3 Left view of a chopstick bagging device provided by an embodiment of the present invention with the bag removed; Figure 4 Right view of a chopstick bagging device provided by an embodiment of the present invention with the bag removed; Figure 5 Top view of a chopstick bagging device provided by an embodiment of the present invention.

[0018] In the figure: 11, annular conveyor chain / belt; 12, bottom support feet; 13, lateral baffle; 14, strengthening member; 15, second drive motor; 21, first lifting plate; 22, first drive motor; 23, first shaft body; 24, first rotating member; 25, rack; 26, drive gear; 27, synchronous transmission structure; 31, counterweight plate; 32, second shaft body; 33, second rotating member; 41, cantilever bag support rod; 5, controller; 6, bag; 71, guide rail; 72, slider. Detailed implementation manners

[0019] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure can be more thoroughly understood and the scope of the present disclosure can be fully conveyed to those skilled in the art. It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0020] Combined with Figures 1-5, this embodiment provides a chopstick bagging device, which includes a conveying assembly with an annular conveyor chain / belt 11. The annular conveyor chain / belt 11 is, for example, an annular conveyor chain or an annular synchronous conveyor belt. There are multiple annular conveyor chains / belts 11 in parallel in this embodiment and they move synchronously. The annular conveyor chain / belt 11 has a loading side and an unloading side. And there are several material grooves (not shown in the figure) provided on the outer annular surface of the annular conveyor chain / belt 11. For example, stoppers distributed at an acute angle to the chain links are added to the chain links of the annular conveyor chain, and adjacent two stoppers form a material groove. A bag supporting structure located at the unloading side and a lifting assembly for driving the unloading side of the annular conveyor chain / belt 11 to move along the Z-axis direction within the bag supporting structure are provided on the conveying assembly. And a counterweight assembly that is movably connected to the conveying assembly in the Z-axis direction and is movably connected to the loading side of the annular conveyor chain / belt 11 is also provided on the conveying assembly. The movement directions of the lifting assembly and the counterweight assembly are opposite, so that the annular conveyor chain / belt 11 performs telescopic movement.

[0021] Specifically, the lifting assembly drives the unloading side of the annular conveyor chain / belt to move upward in the Z-axis direction, which can be a uniform motion or an intermittent motion.

[0022] It can be understood that in this embodiment, the lifting assembly drives the unloading side of the annular conveyor chain / belt 11 to move along the Z-axis direction within the bag supporting structure. When moving downward along the Z-axis, it can make the unloading side of the annular conveyor chain / belt fully open the bag 6 to prevent the bag from not being fully opened or manual assistance in bag opening. When moving upward along the Z-axis, through the uniform or intermittent movement of the annular conveyor chain / belt 11, the materials can be stably put into the bag 6, realizing efficient bagging of the materials.

[0023] It can be understood that in the chopstick bagging device of this embodiment, materials are loaded through the loading side of the annular conveyor chain / belt 11, and the materials are placed in the material grooves. After starting the annular conveyor chain / belt 11 to convey the materials to the unloading side, the unloading side conveys the materials to the bottom of the bag 6 on the bag supporting structure and accumulates them. After the materials at the bottom of the bag start to accumulate, the lifting assembly drives the unloading side of the annular conveyor chain / belt 11 to move upward along the Z-axis, so that the materials can be gradually stacked layer by layer at the bottom of the bag until the bagging is completed. After the lifting assembly drives the unloading side of the annular conveyor chain / belt 11 to start moving along the Z-axis, the annular conveyor chain / belt 11 forms a telescopic movement. At this time, the counterweight assembly moves in the opposite direction to the unloading side of the annular conveyor chain / belt 11, so that the annular conveyor chain / belt 11 always maintains a tightened state during the telescopic process, avoiding the materials from falling and affecting the bagging.

[0024] It can be understood that this embodiment realizes the orderly bagging of chopsticks, reduces the need for manual intervention, and the entire bagging process can be carried out more smoothly according to the automated process, greatly improving the production efficiency and making the production process more efficient and stable.

[0025] In a specific embodiment of the present application, the lifting assembly includes two first lifting plates 21 that are respectively slidably connected to the conveying assembly in the Z-axis direction. The two first lifting plates 21 are connected to a synchronous lifting drive mechanism, and the discharge side of the annular conveyor chain / belt 11 is located within the space between the two first lifting plates 21 and drives the discharge side of the annular conveyor chain / belt 11 to move within the bag-supporting structure through the movement of the first lifting plates 21.

[0026] In a specific embodiment of the present application, a first shaft body 23 is provided between the lower ends of the two first lifting plates 21, and a first rotating member 24 that meshes with the annular conveyor chain / belt 11 is provided on the first shaft body 23. The first rotating member 24 is, for example, a sprocket or a synchronous pulley.

[0027] Specifically, in this embodiment, the discharge side of the annular conveyor chain / belt 11 is located within the space between the two first lifting plates 21, and the lower ends of the two first lifting plates 21 are connected by the first shaft body 23, thereby realizing the synchronous movement of the two lifting plates. At the same time, the first rotating member 24 on the first shaft body 23 meshes with the annular conveyor chain / belt 11, so that the annular conveyor chain / belt 11 and the two first lifting plates 21 achieve synchronous movement. The synchronous lifting drive mechanism drives the discharge side of the annular conveyor chain / belt 11 to move synchronously while driving the two first lifting plates 21 to move, thereby realizing that during the material bagging operation process, the material can be directly bagged at the bottom of the bag 6, and as the material accumulates at the bottom of the bag, the discharge side can gradually adjust the discharging height to avoid the messy accumulation of the material.

[0028] In a specific embodiment of the present application, the synchronous lifting drive structure is any one of a gear-rack 25 drive mechanism and a linear drive structure, and a guiding structure is provided between the first lifting plate 21 and the conveying assembly.

[0029] It can be understood that any structural component that can achieve the driving purpose can be used as the synchronous lifting drive structure in this embodiment, and the synchronous lifting drive structure can be selected according to the actual situation, and this embodiment does not make specific limitations on this.

[0030] Specifically, the guiding structure in this embodiment is preferably a guide rail 71 and a slider 72 arranged along the Z-axis direction. Any one of the guide rail 71 and the slider 72 is arranged on the side wall of the first lifting plate 21 opposite to the conveying assembly, and the remaining one is arranged on the side wall of the lateral baffle 13 of the conveying assembly opposite to the first lifting plate 21.

[0031] It can be understood that in this embodiment, the setting of the guiding structure avoids the possible deviation of the first lifting plate 21 and the discharge side of the conveying assembly during the movement in the Z-axis direction, thereby improving the accuracy of the bagging position, being beneficial to standardized production, and improving work efficiency.

[0032] In a specific embodiment of the present application, the synchronous lifting drive mechanism includes a rack 25 fixedly provided on the first lifting plate 21. A drive gear 26 meshing with the corresponding rack 25 is provided on the conveying assembly. The two drive gears 26 rotate synchronously through a synchronous transmission structure 27, and one of the drive gears 26 is connected to the first drive motor 22.

[0033] Specifically, the synchronous transmission mechanism in this embodiment is preferably a conveyor chain / belt, and this embodiment does not make specific limitations thereto.

[0034] Specifically, the first drive motor 22 in this embodiment is preferably a servo motor.

[0035] It can be understood that in this embodiment, the synchronous lifting drive mechanism drives one of the drive gears 26 to rotate, and the two drive gears 26 are synchronously rotated through the synchronous transmission mechanism, thereby driving the racks 25 and the first lifting plate 21 meshing with the two drive gears 26 to move in the Z-axis direction.

[0036] In a specific embodiment of the present application, the movement stroke of the counterweight assembly in the Z-axis direction is greater than the movement stroke of the discharge side of the annular conveyor chain / belt 11 in the Z-axis direction.

[0037] In a specific embodiment of the present application, the counterweight assembly includes two counterweight plates 31 respectively slidably connected to the conveying assembly in the Z-axis direction. At least a part of the loading side of the annular conveyor chain / belt 11 is located in the space formed between the two counterweight plates 31. A second shaft body 32 is provided between the two counterweight plates 31, and a second rotating member 33 meshing with the annular conveyor chain / belt 11 is provided on the second shaft body 32. The second rotating member 33 is, for example, a sprocket or a synchronous pulley.

[0038] Specifically, a second shaft body 32 is provided between the two counterweight plates 31 in this embodiment, and a second rotating member 33 meshing with the annular conveyor chain / belt 11 is provided on the second shaft body 32. When the annular conveyor chain / belt 11 is started, at least a part of the loading side of the annular conveyor chain / belt 11 runs between the two counterweight plates 31. At the same time, the counterweight assembly and the lifting assembly cooperate with each other. When the lifting assembly drives the discharge side of the annular conveyor chain / belt 11 to reciprocate in the Z-axis direction, the length of the discharge side of the annular conveyor chain / belt 11 changes in the Z-axis direction, thereby causing the length of the loading side of the annular conveyor chain / belt 11 to change in the Z-axis direction. At this time, the counterweight assembly moves in the opposite direction to the discharge side of the annular conveyor chain / belt 11, so that the annular conveyor chain / belt 11 is always kept in a tightened state, avoiding the situation of material dropping.

[0039] Specifically, a guiding structure is further provided between the counterweight assembly and the conveying assembly in this embodiment. The guiding structure is preferably a guide rail 71 and a slider 72. Either one of the guide rail 71 and the slider 72 is arranged on the side wall of the counterweight plate 31 opposite to the annular conveyor chain / band, and the remaining one is arranged on the side wall of the lateral baffle 13 of the conveying assembly opposite to the counterweight plate 31.

[0040] It can be understood that in this embodiment, by setting the counterweight assembly to cooperate with the lifting assembly, the lifting movement of the discharging side of the annular conveyor chain / band 11 during operation is realized, which improves the working efficiency while realizing the orderly stacking of materials.

[0041] In a specific embodiment of the present application, the bag supporting structure includes two cantilever bag supporting rods 41 fixed at one end to the conveying assembly. The cantilever bag supporting rods 41 can improve the utilization rate of the space below them.

[0042] In a specific embodiment of the present application, the feeding side of the annular conveyor chain / band 11 is inclined, the discharging side of the annular conveyor chain / band 11 is vertical, the conveying assembly includes bottom feet 12, and two lateral baffles 13 are provided on the bottom feet 12. The two lateral baffles 13 are connected by a strengthening member 14 and a second driving motor 15 for the annular conveyor chain / band 11 to move is formed between the two lateral baffles. The second driving motor 15 outputs power through a transmission shaft fixed between the two lateral baffles 13, and a third rotating member meshing with the annular conveyor chain / band 11 is provided on the transmission shaft. The third rotating member is, for example, a sprocket or a synchronous pulley. The number of the third rotating members is equal to the number of the annular conveyor chain / band 11 and they are meshed one by one.

[0043] Specifically, the second driving motor 15 in this embodiment is preferably a servo motor.

[0044] It can be understood that in this embodiment, lateral baffles 13 are provided on the bottom feet 12 of the conveying assembly, and the second driving motor 15 is arranged between the two lateral baffles 13 to drive the annular conveyor chain / band 11 to move. At the same time, the lateral single plates are connected by the strengthening member 14 to ensure the stability of the conveying assembly during operation.

[0045] Specifically, the two counterweight plates 31 of the counterweight assembly in this embodiment are also connected by a strengthening member 14 to further improve the stability of the conveying assembly during operation.

[0046] Specifically, a controller 5 is further provided in this embodiment. The controller 5 is electrically connected to the first driving motor 22 and the second driving motor 15 respectively, and is used to control the operation of the first driving motor 22 and the second driving motor 15.

[0047] On the other hand, the present application also provides a method for bagging chopsticks. The method for bagging chopsticks includes the following steps: S1. Open the bag and fix it to the bag-opening structure. The lifting component causes the discharge side of the annular conveyor chain / belt to extend downward into the bag along the Z-axis direction, and the counterweight component is forced to move upward. A height difference is reserved between the discharge side of the annular conveyor chain / belt and the inner bottom of the bag. S2. Start the annular conveyor chain / belt, and put the materials to be bagged into the material trough on the feeding side of the annular conveyor chain / belt one by one. The annular conveyor chain / belt conveys the materials from the feeding side to the discharge side and drops them into the bag in S1 one by one. As the bagging level of the materials in the bag gradually rises, the lifting component drives the discharge side of the annular conveyor chain / belt to move upward in the Z-axis direction, and the counterweight component is forced to move downward, thus filling the entire bag, that is, the bagging is completed.

[0048] Specifically, a chopstick bagging method in this embodiment has the same beneficial effects as the above-mentioned chopstick bagging device, which will not be elaborated here.

[0049] Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0050] The present application is described with reference to the flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or block in the flowchart and / or block diagram can be implemented by computer program instructions, and the combination of the processes and / or blocks in the flowchart and / or block diagram can also be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0051] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer-readable memory generate a manufactured product including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0052] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus, so that a series of operation steps are performed on the computer or other programmable apparatus to produce a computer-implemented process, thereby providing instructions for implementing the steps of the process Figure 1 in one process or a plurality of processes and / or blocks Figure 1 in one block or a plurality of blocks.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications or equivalent replacements can still be made to the specific embodiments of the present invention. Any modification or equivalent replacement without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A chopstick bagging device, comprising a conveying assembly having an annular conveyor chain / belt, wherein the annular conveyor chain / belt has a feeding side and a discharging side, and a plurality of material troughs are arranged on the outer annular surface of the annular conveyor chain / belt, characterized in that: The conveying component is provided with a bag-supporting structure located on the discharge side and a lifting component that drives the discharge side of the annular conveying chain / belt to move along the Z-axis direction within the bag-supporting structure, and the conveying component is also provided with a counterweight component that is movably connected to the conveying component in the Z-axis direction and is movable with the feeding side of the annular conveying chain / belt. The movement direction of the lifting component is opposite to that of the counterweight component, so that the annular conveying chain / belt can perform telescopic movement.

2. The chopstick bagging device according to claim 1, characterized in that: The lifting assembly includes two first lifting plates which are respectively connected to the conveying assembly in a sliding manner in the Z-axis direction, the two first lifting plates are connected to a synchronous lifting drive mechanism, and the discharge side of the annular conveyor chain / belt is located in the space between the two first lifting plates and the discharge side of the annular conveyor chain / belt is driven to move in the bag supporting structure through the movement of the first lifting plates.

3. The chopstick bagging device according to claim 2, characterized in that: A first shaft body is arranged between the lower ends of the two first lifting plates, and a first rotating member meshing with the annular conveying chain / belt is arranged on the first shaft body.

4. The chopstick bagging device according to claim 2, characterized in that: The synchronous lifting drive structure is any one of a gear rack drive mechanism and a linear drive structure, and a guide structure is provided between the first lifting plate and the transmission assembly.

5. A chopstick bagging device according to claim 2, 3 or 4, characterized in that: The synchronous lifting drive mechanism includes a rack fixed to the first lifting plate, a driving gear meshing with the corresponding rack is provided on the transmission assembly, the two driving gears rotate synchronously through a synchronous transmission structure, and one of the driving gears is connected to the first driving motor.

6. The chopstick bagging device according to claim 1, characterized in that: The movement stroke of the counterweight assembly in the Z-axis direction is greater than the movement stroke of the discharge side of the endless conveyor chain / belt along the Z-axis direction.

7. The chopstick bagging device according to claim 1, characterized in that: The counterweight assembly includes two counterweight plates which are respectively connected to the conveying assembly in a sliding manner in the Z-axis direction. At least part of the feeding side of the circular conveyor chain / belt is located in the space formed between the two counterweight plates. A second shaft is provided between the two counterweight plates, and a second rotating member which engages with the circular conveyor chain / belt is provided on the second shaft.

8. The chopstick bagging device according to claim 1, characterized in that: The bag-supporting structure comprises two cantilever bag-supporting rods, one end of which is fixed on the conveying assembly.

9. The chopstick bagging device according to claim 2, characterized in that: The feeding side of the circular conveyor chain / belt is inclined, and the discharging side of the circular conveyor chain / belt is vertically arranged. The transmission assembly includes a bottom support foot, and two lateral baffles are arranged on the bottom support foot. The two lateral baffles are connected by a reinforcing member and a second driving motor for moving the circular conveyor chain / belt is formed between the two lateral baffles.

10. A method for bagging chopsticks, using a chopstick bagging device according to any one of claims 1 to 9, characterized in that: The chopstick bagging method comprises the following steps: S1, the bag is opened and fixed to the bag-supporting structure, and the lifting assembly makes the discharge side of the endless conveyor chain / belt extend downward into the bag along the Z-axis direction and the counterweight assembly is forced to move upward, and a height difference is reserved between the discharge side of the endless conveyor chain / belt and the inner bottom of the bag; S2, start the circular conveyor chain / belt, and put the materials to be bagged into the material slot on the feeding side of the circular conveyor chain / belt one by one, the circular conveyor chain / belt transports the materials from the feeding side to the discharging side and drops them into the bag in S1 one by one, and as the bagging level of the materials in the bag gradually increases, the lifting assembly drives the discharging side of the circular conveyor chain / belt to move upward in the Z-axis direction and the counterweight assembly is forced to move downward, thereby filling the entire bag, i.e. completing the bagging.

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