Bag taking machine

Abstract

The utility model discloses a bag taking machine which comprises a machine body provided with a bag taking opening communicated with the outside. The mounting assembly is arranged in the machine body and located on the lower side of the bag taking opening, and the mounting assembly is used for mounting a plastic bag roll; the limiting assembly is arranged in the machine body, the limiting assembly comprises at least two limiting parts, and the two limiting parts are used for limiting the two opposite ends of the plastic bag roll; and the bag conveying assembly is arranged in the machine body, and the bag conveying assembly is suitable for conveying the plastic bags of the plastic bag roll to the bag taking opening. According to the bag taking machine, the installation assembly is arranged on the lower side of the bag taking opening, the installation height of the plastic bag roll can be reduced, the plastic bag roll can be conveniently installed, the two opposite sides of the plastic bag roll are limited through the two limiting components, the risk that the plastic bag is curled or even clamped in the working process of the bag taking machine can be reduced, and the bag taking efficiency is improved. Working reliability of the bag taking machine is improved, and normal bag taking of a user is facilitated.

Description

Bag taking machine Technical Field

[0001] This utility model relates to the technical field of plastic bag self-service equipment, and more specifically, to a bag-retrieving machine. Background Technology

[0002] As a convenient service device, the bag dispenser can automatically distribute built-in plastic bags to those in need, making it easy for users to take the bags.

[0003] In related technologies, bag ejection machines are prone to bag jamming during the bag ejection process, resulting in low reliability and frequent maintenance, which increases maintenance costs. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a bag-removing machine that is less prone to bag jamming during the bag dispensing process, has high operational reliability, and helps reduce the frequency of maintenance and lower maintenance costs.

[0005] A bag-retrieving machine according to an embodiment of the present invention includes: a machine body having a bag-retrieving opening communicating with the outside; an installation component disposed within the machine body and located below the bag-retrieving opening, the installation component being used to install a plastic bag roll; a limiting component disposed within the machine body, the limiting component including at least two limiting parts, the two limiting parts being used to limit the opposite ends of the plastic bag roll; and a bag-feeding component disposed within the machine body, the bag-feeding component being adapted to convey the plastic bag from the plastic bag roll to the bag-retrieving opening.

[0006] According to the embodiments of the present invention, the bag-retrieving machine can reduce the installation height of the plastic bag roll by placing the installation component below the bag-retrieving opening, which facilitates the installation of the plastic bag roll. Furthermore, by limiting the opposite sides of the plastic bag roll through two limiting components, the risk of the plastic bag curling or even jamming during the operation of the bag-retrieving machine can be reduced, thereby improving the working reliability of the bag-retrieving machine, reducing the number of maintenance operations to lower maintenance costs, and facilitating normal bag retrieval by the user.

[0007] In addition, the bag-removing machine according to the above embodiments of this utility model may also have the following additional technical features:

[0008] According to some embodiments of the present invention, the distance between at least two of the limiting components is adjustable.

[0009] According to some embodiments of the present invention, the limiting component further includes a mounting base having a plurality of mounting holes, and each limiting component is selectively mounted in one of the plurality of mounting holes.

[0010] According to some embodiments of the present invention, the bag feeding assembly further includes at least one first sensor, which is located on one side of the bag feeding assembly along a first direction, and is used to sense whether the plastic bag has shifted.

[0011] According to some embodiments of the present invention, in the first direction, the minimum distance between the first sensor and the edge of the bag feeding assembly is greater than the minimum distance between the plastic bag and the edge of the bag feeding assembly, so that the first sensor contacts the plastic bag at the bag feeding assembly, and the first sensor is adapted to issue an alarm signal when separated from the plastic bag; or, in the first direction, the minimum distance between the first sensor and the edge of the bag feeding assembly is less than the minimum distance between the plastic bag and the edge of the bag feeding assembly, so that the first sensor is spaced apart from the plastic bag at the bag feeding assembly, and the first sensor is adapted to issue an alarm signal when in contact with the plastic bag.

[0012] According to some embodiments of the present invention, the bag feeding assembly further includes at least one second sensor, the second sensor being located at the middle of the bag feeding assembly along a first direction, the plastic bag having a hollow portion at the middle of the first direction, and the second sensor being adapted to control the bag feeding assembly to stop feeding the bag when it is opposite to the hollow portion.

[0013] According to some embodiments of the present invention, the bag feeding assembly includes a plurality of first rollers and a plurality of second rollers. The plurality of first rollers and the plurality of second rollers are arranged along a first direction. The first rollers and the second rollers are arranged along a second direction. The plurality of first rollers and the plurality of second rollers correspond one-to-one with each other along the second direction and are adapted to clamp the plastic bag. The first rollers and the second rollers roll to convey the plastic bag to the bag taking opening. The first direction is perpendicular to the second direction.

[0014] According to some embodiments of the present invention, the mounting assembly includes a mounting shaft and two mounting brackets, the plastic bag roll is sleeved on the mounting shaft, the two mounting brackets are mounted in the machine body, and the mounting shaft is detachably mounted on the two mounting brackets.

[0015] According to some embodiments of the present invention, the mounting shaft is rotatably mounted on two of the mounting brackets; or, the portion of the mounting shaft used for mounting the plastic bag roll is rotatable.

[0016] According to some embodiments of the present invention, the bag-retrieving machine further includes a baffle, which is closable and disposed outside the bag-retrieving opening; and / or, the bag-retrieving machine further includes an operation module, which is disposed on the machine body and is adapted to control the bag-feeding assembly to feed bags according to user instructions; and / or, the bag-retrieving machine further includes a door that is closable and disposed on the machine body; and / or, the bag-retrieving machine further includes a plurality of movable casters, which are disposed at the bottom of the machine body.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 is a front view of the bag-removing machine according to an embodiment of the present utility model;

[0020] Figure 2 is a side view of Figure 1;

[0021] Figure 3 is a partial structural schematic diagram of the bag-retrieving machine in Figure 1, where the door is not shown;

[0022] Figure 4 is a schematic diagram of the bag-removing machine in Figure 3 from another perspective;

[0023] Figure 5 is a schematic diagram of the cooperation structure of the mounting shaft, the limiting component and the plastic bag roll according to an embodiment of the present utility model;

[0024] Figure 6 is a front view of the bag-retrieving machine according to an embodiment of the present utility model, wherein the door body is not shown;

[0025] Figure 7 is a cross-sectional view of Figure 6 along the direction shown by line AA;

[0026] Figure 8 is a schematic diagram of the structure of a single plastic bag;

[0027] Figure 9 is a cross-sectional view of Figure 6 along the direction shown by line BB;

[0028] Figure 10 is a schematic diagram of the structure of the body according to an embodiment of the present utility model;

[0029] Figure 11 is a structural schematic diagram of the mounting bracket according to an embodiment of the present utility model.

[0030] Figure label:

[0031] Bag taking machine 100; plastic bag roll 200; plastic bag 210; hollow part 211; solid part 212;

[0032] Body 10; Bag opening 11;

[0033] Mounting component 20; Mounting shaft 21; Mounting bracket 22; Slot 221;

[0034] Limiting component 30; limiting part 31; mounting base 32;

[0035] Bag delivery component 40;

[0036] 50 baffle; 60 operation module; 61 display screen; 62 barcode scanner; 70 door body; 80 movable casters. Detailed Implementation

[0037] The embodiments of this utility model are described in detail below. Examples of these 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 are only used to explain this utility model, and should not be construed as limiting this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In the description of this utility model, "first feature" and "second feature" may include one or more of the features, "multiple" means two or more, "first feature above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them, and "first feature above", "above" and "over" the second feature may include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0040] The bag-retrieving machine 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings. The bag-retrieving machine 100 contains a plastic bag roll 200, which includes a plurality of plastic bags 210 rolled together. The bag-retrieving machine 100 is used to convey the plastic bags 210 to the outside for users to retrieve the bags.

[0041] Referring to Figures 1-11, the bag-taking machine 100 according to an embodiment of the present invention may include: a machine body 10, an installation component 20, a limiting component 30, and a bag-feeding component 40.

[0042] Specifically, the body 10 is provided with a bag-removing opening 11 that communicates with the outside, allowing the user to remove the plastic bag 210 from inside the body 10. For example, as shown in Figures 1-2, the front side of the body 10 is provided with the bag-removing opening 11.

[0043] The mounting component 20 is located inside the machine body 10 and below the bag dispensing opening 11. The mounting component 20 is used to mount the plastic bag roll 200, positioning it below the bag dispensing opening 11. This lowers the mounting height of the plastic bag roll 200, eliminating the need for operators to lift it excessively when changing it. The operator simply lifts the plastic bag roll 200 to the mounting component 20 for mounting, making the process easier and less strenuous. The lower height of the plastic bag roll during replacement also prevents it from falling, helping to maintain its cleanliness.

[0044] The mounting component 20 is located below the bag dispensing opening 11, enabling the placement of the plastic bag roll 200 below the bag dispensing machine 100. This fully utilizes the lower space of the bag dispensing machine 100, allowing for the placement of larger plastic bag rolls 200 within a bag dispensing machine 100 of a fixed volume. This reduces the frequency of installing new plastic bag rolls 200, decreases user waiting time, and improves the user experience. For example, in some specific embodiments, the mounting component 20 is located below the bag dispensing opening 11, enabling the bag dispensing machine 100 to hold a plastic bag roll 200 containing 800 plastic bags 210.

[0045] The limiting component 30 is located within the machine body 10. The limiting component 30 includes at least two limiting parts 31, which are used to limit the opposite ends of the plastic bag roll 200. The opposite ends can refer to the two ends of the plastic bag roll 200 within the machine body 10 along its own axis. For example, as shown in Figures 3-7, the two limiting parts 31 are located on the left and right sides of the plastic bag roll 200 to limit the left and right ends of the plastic bag roll 200, making it less likely for the position of the plastic bag roll 200 to change in the left and right direction, and making the operation of the plastic bag roll 200 rotating to dispense the bag more stable.

[0046] By limiting the two ends of the plastic bag roll 200 with the limiting component 30, the plastic bag roll 200 is less likely to deviate or fall off during the bag discharge process. As a result, the plastic bag 210 is less likely to deviate at the bag dispensing opening 11. The plastic bag 210 is less likely to curl or get stuck during the bag discharge process. The bag dispensing machine 100 is more stable and reliable in its bag dispensing operation, and it can also reduce the number of maintenance times of the bag dispensing machine 100 and reduce maintenance costs.

[0047] The number of limiting components 31 can be two, three, or more. For example, in some embodiments, as shown in Figures 6-7, there are two limiting components 31, located on the left and right sides of the plastic bag roll 200. In other embodiments, there are three limiting components 31, with two on the left side of the plastic bag roll 200 and one on the right side, so as to limit the position of the plastic bag roll 200 in the left-right direction by means of three limiting components 31.

[0048] The limiting component 30 can be located on the lower side, front side, or other side of the mounting component 20. The installation position of the limiting component 30 is flexible, so that the limiting component 30 can limit the opposite ends of the plastic bag roll 200.

[0049] The bag feeding assembly 40 is located inside the machine body 10. The bag feeding assembly 40 can convey the plastic bags 210 of the plastic bag roll 200 to the bag taking port 11. Specifically, after the plastic bag roll 200 is installed on the mounting assembly 20, one plastic bag 210 of the plastic bag roll 200 can be taken out and placed at the bag taking port 11 through the bag feeding assembly 40. During the operation of the bag taking machine 100, multiple plastic bags 210 of the plastic bag roll 200 are conveyed one by one to the bag taking port 11 through the bag feeding assembly 40, which makes it convenient for multiple users to take the plastic bags 210 one by one at the bag taking port 11, and the operation is convenient.

[0050] In some related technologies, the plastic bag roll of the bag-retrieving machine is installed above the bag-retrieving opening. This requires workers to lift the plastic bag roll excessively high during installation, making the operation more strenuous. During installation, the excessive height of the plastic bag roll can easily cause it to fall due to worker fatigue, resulting in soiling. Furthermore, during normal operation, the plastic bag roll is prone to sliding along its own axis, causing positional displacement and leading to the plastic bag curling or even jamming at the bag-retrieving opening, resulting in low reliability of the bag-retrieving operation.

[0051] In this application, the mounting component 20 is located below the bag-retrieving opening 11, meaning the plastic bag roll 200 is installed below the bag-retrieving opening 11. This eliminates the need for workers to lift the plastic bag roll 200 too high during installation, resulting in a lower installation height and less effort required. Because of its lower height, the plastic bag roll 200 is less likely to fall during installation, helping to keep it clean. During normal operation of the bag-retrieving machine 100, the two limiting components 31 restrict the relative sides of the plastic bag roll 200, preventing positional deviation, such as deviation along its own axis. This reduces the likelihood of the plastic bag 210 at the bag-retrieving opening 11 curling or jamming, ensuring high reliability of the bag-retrieving machine.

[0052] According to the embodiment of the present utility model, the bag-retrieving machine 100, by placing the mounting component 20 below the bag-retrieving opening 11, can reduce the installation height of the plastic bag roll 200, making it easier to install the plastic bag roll 200. Furthermore, by limiting the opposite sides of the plastic bag roll 200 through two limiting components 31, the risk of the plastic bag 210 curling or even getting stuck during the operation of the bag-retrieving machine 100 can be reduced, thereby improving the working reliability of the bag-retrieving machine 100, reducing the number of maintenance operations to lower maintenance costs, and facilitating normal bag retrieval by the user.

[0053] In some embodiments of this utility model, the spacing between at least two limiting components 31 is adjustable. Different models of plastic bag rolls 200 have different sizes, and since the spacing between the two limiting components 31 is adjustable, this application can adjust the spacing between the two limiting components 31 at opposite ends of the plastic bag 200 according to the size of different models of plastic bags 200. Therefore, multiple models of plastic bag rolls 200 can be restricted by the two limiting components 31, enabling the bag-retrieving machine 100 to be used to install multiple models of plastic bag rolls 200 to meet the needs of different users, thus broadening the application range of the bag-retrieving machine 100.

[0054] For example, in some specific embodiments, two limiting components 31 are located on the left and right sides of the plastic bag roll 200. The distance between these two limiting components 31 in the left and right direction is adjustable. By adjusting the distance between these two limiting components 31 in the left and right direction, various sizes of plastic bag rolls 200 can be restricted in the left and right direction.

[0055] In some embodiments, as shown in Figures 3-7, the limiting component 30 further includes a mounting base 32 with multiple mounting holes. Each limiting component 31 is selectively mounted in one of the multiple mounting holes, which can be round holes, elongated holes, or holes of other shapes. By adjusting the corresponding mounting relationship between the multiple limiting components 31 and the multiple mounting holes, the distance between at least two limiting components 31 located at opposite ends of the plastic bag roll 200 can be adjusted to limit various sizes and models of plastic bag rolls 200. The connection direction between the limiting component 31 and the mounting hole can be one or more of the following connection methods: bolt connection, snap-fit, and adhesive bonding, making the connection between the limiting component 31 and the mounting hole more secure and less prone to shaking, thus improving the limiting effect on the plastic bag roll 200.

[0056] For example, in some embodiments, the mounting base 32 has two mounting holes on the left side and two mounting holes on the right side, with all four mounting holes arranged in the left-right direction. There are two limiting members 31, one of which can engage with one of the two mounting holes on the left side of the mounting shaft 21, and the other can engage with one of the two mounting holes on the right side of the mounting shaft 21, to change the distance between the two limiting members 31 in the left-right direction.

[0057] Of course, in addition to mounting holes, the spacing between at least two limiting components 31 can be changed through other structures. For example, in some other embodiments, multiple mounting slots can be provided on the mounting base 32, with the extension direction of the mounting slots parallel or intersecting the arrangement direction of the two limiting components 31. Each mounting slot is used to install one limiting component 31, and the limiting component 31 can move along the extension direction of the corresponding mounting slot. The limiting component 31 can be restricted to any position in the corresponding mounting slot by bolts, buckles, etc.

[0058] In some embodiments of this utility model, the bag feeding assembly 40 further includes at least one first sensor. The first sensor is located on one side of the bag feeding assembly 40 along a first direction (e.g., the left-right direction shown in Figures 3-7). The first sensor is used to sense whether the plastic bag 210 has shifted. The first direction may be parallel to or at a certain angle to the axial direction of the plastic bag roll 200 inside the machine body 10. For example, as shown in Figures 3-7, the first direction is the left-right direction, and the axial direction of the plastic bag roll 200 is parallel to the left-right direction.

[0059] The first sensor detects whether the plastic bag 210 at the bag feeding assembly 40 has shifted. When the plastic bag 210 at the bag feeding assembly 40 shifts, the plastic bag 210 can be adjusted in time. For example, the worker can gently pull the plastic bag 210 at the bag opening 11 in the opposite direction to the direction of the shift, so that the position of the plastic bag 210 can be corrected in time.

[0060] If the bag feeding assembly 40 does not include the first sensor, it is difficult to detect when the plastic bag 210 at the bag feeding assembly 40 shifts. The plastic bag 210 will continue to shift until problems such as bag jamming occur, causing the bag picking machine 100 to malfunction and requiring on-site repair by maintenance personnel. However, in this application, the bag feeding assembly 40 includes the first sensor, making it easy to detect when the plastic bag 210 shifts. This allows staff to adjust the plastic bag 210 in a timely manner, reducing the risk of the plastic bag 210 continuing to shift and causing problems such as bag jamming, thus improving the reliability of the bag picking machine 100's bag picking operation.

[0061] The number of first sensors can be one, two, three or more. For example, in some embodiments, there are two first sensors, which are located on the left and right sides of the bag feeding assembly 40, respectively, so as to detect whether the plastic bag 210 at the bag feeding assembly 40 has shifted, thus achieving higher detection accuracy.

[0062] In some embodiments, in the first direction, the minimum distance between the first sensor and the edge of the bag feeding assembly 40 is greater than the minimum distance between the plastic bag 210 and the edge of the bag feeding assembly 40, so that the first sensor contacts the plastic bag 210 at the bag feeding assembly 40. During normal operation of the bag taking machine 100, if the plastic bag 210 at the bag feeding assembly 40 does not shift significantly, the first sensor will always be in contact with the plastic bag 210 at the bag feeding assembly 40.

[0063] For example, in the bag-feeding machine 100, the distance between the left-side first sensor and the left edge of the bag-feeding assembly 40 is L1, and the distance between the plastic bag 210 and the left edge of the bag-feeding assembly 40 is L2, where L1 > L2. This ensures that during the bag-feeding process, the left-side first sensor is positioned above or below the plastic bag 210 and is in contact with it. That is, the plastic bag 210 will pass through the installation position of the first sensor. Under normal operating conditions, the first sensor will always be in contact with the plastic bag 210. In other words, the fact that the first sensor can always sense the plastic bag 210 in contact with it means that the plastic bag 210 has not shifted significantly. Similarly, for the right-side first sensor, under normal operating conditions, the right-side first sensor will always be in contact with the plastic bag 210. The fact that the right-side first sensor can always sense the plastic bag 210 in contact with it means that the plastic bag 210 has not shifted significantly.

[0064] The first sensor can issue an alarm signal when it is separated from the plastic bag 210. During the operation of the bag taking machine 100, if the plastic bag 210 at the bag feeding assembly 40 shifts significantly, causing the first sensor to separate from the plastic bag 210 at the bag feeding assembly 40, and the first sensor can no longer detect the plastic bag 210, it means that the plastic bag 210 has shifted significantly. At this time, the first sensor issues an alarm signal, which can remind the staff to adjust the plastic bag 210 at the bag taking opening 11 in time. The detection sensitivity is high.

[0065] For example, during the operation of the bag-feeding machine 100, if the plastic bag 210 at the bag feeding assembly 40 shifts significantly to the left, the entire plastic bag 210 will shift to the left, causing the first sensor on the right to separate from the plastic bag 210. At this time, the first sensor on the right will issue an alarm signal, allowing the operator to adjust the plastic bag 210 in time. Similarly, if the plastic bag 210 at the bag feeding assembly 40 shifts significantly to the right, the first sensor on the left will separate from the plastic bag 210. At this time, the first sensor on the left will issue an alarm signal, reminding the operator to adjust the plastic bag 210 at the bag-feeding opening 11 in time.

[0066] In other embodiments, in the first direction, the minimum distance between the first sensor and the edge of the bag feeding assembly 40 is less than the minimum distance between the plastic bag 210 and the edge of the bag feeding assembly 40, so that the first sensor is spaced apart from the plastic bag 210 at the bag feeding assembly 40. During normal operation of the bag taking machine 100, if the plastic bag 210 at the bag feeding assembly 40 does not shift significantly, the first sensor will always be spaced apart from the plastic bag 210 at the bag feeding assembly 40, that is, the first sensor will never contact the plastic bag 210 at the bag feeding assembly 40.

[0067] For example, in the bag-feeding machine 100, the distance between the left-side first sensor and the left edge of the bag-feeding assembly 40 is L3, and the distance between the plastic bag 210 and the left edge of the bag-feeding assembly 40 is L4, where L3 < L4. This ensures that during the bag-feeding process, the left-side first sensor is located to the left of the plastic bag 210 and has no contact with it. In other words, the plastic bag 210 will not pass through the installation position of the first sensor. Under normal operating conditions, the first sensor will always be spaced apart from the plastic bag 210. Therefore, if the first sensor never senses the plastic bag 210 in contact with it, it means that the plastic bag 210 has not shifted significantly. Similarly, for the right-side first sensor, under normal operating conditions, the right-side first sensor will always be spaced apart from the plastic bag 210. If the right-side first sensor never senses the plastic bag 210 in contact with it, it means that the plastic bag 210 has not shifted significantly.

[0068] The first sensor can issue an alarm signal when it is in contact with the plastic bag 210. During the operation of the bag-retrieving machine 100, if the plastic bag 210 at the bag feeding assembly 40 deviates significantly, causing the first sensor to come into contact with the plastic bag 210 at the bag feeding assembly 40, the first sensor will detect the plastic bag 210 in contact with it, indicating a significant deviation. At this time, the first sensor will issue an alarm signal, reminding the operator to adjust the plastic bag 210 at the bag-retrieving opening 11 in a timely manner, demonstrating high detection sensitivity.

[0069] For example, during the operation of the bag-feeding machine 100, if the plastic bag 210 at the bag feeding assembly 40 shifts significantly to the left, the entire plastic bag 210 will shift to the left, causing the first sensor on the right to separate from the plastic bag 210. At this time, the first sensor on the right will issue an alarm signal, allowing the operator to adjust the plastic bag 210 in time. Similarly, if the plastic bag 210 at the bag feeding assembly 40 shifts significantly to the right, the first sensor on the left will come into contact with the plastic bag 210. At this time, the first sensor on the left will issue an alarm signal, allowing the operator to adjust the plastic bag 210 in time.

[0070] In some embodiments, the first sensor can also be used to calculate the number of plastic bags 210. Specifically, the first sensor is located on one side of the bag feeding assembly 40 along a first direction, and the first sensor can be used to sense the conveying distance of the plastic bags 210. For example, plastic bags 210 are conveyed in a front-to-back direction at the bag dispensing opening 11, causing the plastic bags 210 to move forward and leave the bag dispensing opening 11 to be taken away. The first sensor can sense the conveying distance of the plastic bags 210 (such as the distance the plastic bags 210 move in the front-to-back direction at the bag dispensing opening 11), and obtain the number of plastic bags 210 that have been taken away based on the size of each plastic bag 210 along the conveying direction. By obtaining the number of plastic bags 210 used by the first sensor, the staff can be promptly reminded to install new plastic bag rolls 200, reducing the waiting time for users to wait for the installation of a new plastic bag roll 200 after the previous plastic bag roll 200 has been used up, thus improving the user experience.

[0071] In some embodiments of this utility model, as shown in FIG8, the bag feeding assembly 40 further includes at least one second sensor. The second sensor is located at the middle of the bag feeding assembly 40 along the first direction. The plastic bag 210 has a hollow portion 211 at the middle of the first direction. The second sensor can control the bag feeding assembly 40 to stop feeding the bag when it is opposite to the hollow portion 211. For example, as shown in FIG8, the plastic bag 210 has a hollow portion 211 on one side of its own length direction and at the middle of the left-right direction, so that the user can carry the plastic bag 210 by hand through the hollow portion 211 after taking the bag. For example, the plastic bag 210 is a film bag used in hospitals to store film.

[0072] During normal operation of the bag-feeding machine 100, the solid portion 212 and the hollow portion 211 of the plastic bag 210 at the bag feeding assembly 40 successively come into contact with the second sensor. When the second sensor senses the solid portion 212 of the plastic bag 210 in contact with it, it controls the bag feeding assembly 40 to continue feeding the bag until the plastic bag 210 is delivered to the bag-feeding port 11, at which point it controls the bag feeding assembly 40 to stop feeding the bag.

[0073] Specifically, after the previous plastic bag 210 is delivered to the bag-retrieving opening 11, the second sensor will sense the solid part 212 of the next plastic bag 210, causing the bag-feeding assembly 40 to continue feeding bags until the second sensor is aligned with the hollow part 211 of the next plastic bag 210. If the second sensor does not sense the solid part 212 of the plastic bag 210, it means that the second sensor is aligned with the hollow part 211 of the plastic bag 210. At this time, the bag-feeding assembly 40 is controlled to stop feeding bags, so the next plastic bag 210 will not be delivered to the bag-retrieving opening 11. In a continuous cycle, the second sensor can control the bag feeding assembly 40 to stop feeding the next plastic bag 210 after feeding one plastic bag 210 to the bag taking port 11. This allows the bag feeding assembly 40 to feed multiple plastic bags 210 in the plastic bag roll 200 one by one. This avoids the problem of feeding multiple plastic bags 210 to the bag taking port 11 at once, which would cause the plastic bag roll 200 to be consumed too quickly. It also avoids the problem of stopping feeding before a plastic bag 210 is completely fed to the bag taking port 11, which would prevent the user from taking the bag at the bag taking port 11. This helps to improve the reliability of bag taking at the bag taking port 11.

[0074] Ordinary plastic bags 210 typically have a hollow portion 211 for carrying. This application can utilize the hollow portion 211 of the plastic bag 210 without making major modifications to the plastic bag 210, enabling the bag-removing machine 100 of this application to be used to install common ordinary plastic bags 210 on the market, thus making the bag-removing machine 100 widely applicable.

[0075] The number of second sensors can be one, two, three or more. For example, in some embodiments, the number of second sensors is one, which is located in the middle of the bag feeding assembly 40 in the left-right direction, so as to sense whether the previous plastic bag 210 has been completely discharged, thereby realizing the function of discharging multiple plastic bags 210 one by one from the bag dispensing machine 100.

[0076] In some embodiments, the second sensor can also be used to calculate the number of plastic bags 210. Specifically, the second sensor is located at the center of the bag feeding assembly 40 along the first direction, enabling the second sensor to sense the hollow portion 211 of the plastic bag 210 at the bag opening 11. The second sensor can sense the number of hollow portions 211 at the bag opening 11 and, based on the number of hollow portions 211 on each plastic bag 210 (typically one), determine the number of plastic bags 210 that have been taken. By obtaining the number of plastic bags 210 used through the second sensor, staff can be promptly reminded to install new plastic bag rolls 200, reducing the waiting time for users to wait for a new plastic bag roll 200 to be installed after the previous plastic bag roll 200 has been used up, thus improving the user experience.

[0077] In some embodiments, the bag feeding assembly 40 includes a plurality of first rollers and a plurality of second rollers, both of which are arranged along a first direction. The first rollers and second rollers are arranged along a second direction (e.g., the up-down direction shown in Figures 3-4 and 6). The plurality of first rollers and the plurality of second rollers correspond one-to-one with each other along the second direction and are capable of clamping the plastic bag 210. The first rollers and second rollers roll to convey the plastic bag 210 to the bag dispensing opening 11. The first direction is perpendicular to the second direction.

[0078] For example, the bag feeding assembly 40 includes eight first rollers and eight second rollers. The eight first rollers are arranged in a left-right direction, and the eight second rollers are also arranged in a left-right direction. The first rollers are located above the second rollers, and the eight first rollers and eight second rollers correspond one-to-one in the up-down direction. The corresponding first rollers abut against the second rollers, and the plastic bag 210 is sandwiched between the first rollers and the second rollers. Controlling the rotation of the first rollers and the second rollers can convey the plastic bag 210 sandwiched between the first rollers and the second rollers forward to the bag retrieval opening 11 so that the user can retrieve the bag.

[0079] Through the friction between the first and second rollers and the plastic bag 210, and the contact force between the first and second rollers, the plastic bag 210 sandwiched between the first and second rollers can be driven to move as the first and second rollers roll, thereby causing the plastic bag roll 200 to roll and continuously exit the bag feeding assembly 40, thus realizing the bag picking function of the bag picking machine 100. The multiple first rollers and multiple second rollers are less likely to separate from the plastic bag 210, resulting in a more stable driving effect on the plastic bag 210, enabling the bag picking machine 100 to continuously feed bags to the bag picking opening 11, making the bag feeding function of the bag picking machine 100 more reliable.

[0080] In some embodiments of this utility model, as shown in Figures 3-7 and 9-11, the mounting assembly 20 includes a mounting shaft 21 and two mounting brackets 22. A plastic bag roll 200 is fitted onto the mounting shaft 21, and the two mounting brackets 22 are installed inside the machine body 10. The mounting shaft 21 is detachably mounted onto the two mounting brackets 22. The detachable connection between the mounting shaft 21 and the mounting brackets 22 can be one or more of the following connection methods: snap-fit, screw-fit, and adhesive-fit.

[0081] For example, as shown in Figures 9-11, the mounting bracket 22 is provided with a slot 221, in which the mounting shaft 21 is detachably mounted. The slot 221 extends upward from front to back to limit the mounting shaft 21, reducing the risk of the mounting shaft 21 coming out of the slot 221, and making the mounting of the mounting shaft 21 more stable on the mounting bracket 22.

[0082] The mounting shaft 21 is detachably mounted to the two mounting brackets 22, facilitating the replacement of the plastic bag roll 200 mounted on the mounting shaft 21. Specifically, during the replacement of the plastic bag roll 200, the mounting shaft 21 can be removed from the two mounting brackets 22, a new plastic bag roll 200 can be fitted onto the mounting shaft 21, and then the mounting shaft 21 with the plastic bag roll 200 fitted onto it can be mounted back onto the two mounting brackets 22, facilitating the replacement of the plastic bag roll 200.

[0083] In some embodiments, as shown in Figures 3-7, the mounting shaft 21 is rotatably mounted on two mounting frames 22. During the rotation of the plastic bag roll 200 to convey multiple rolled-up plastic bags 210, the mounting shaft 21 can rotate together with the plastic bag roll 200, reducing the obstruction of the mounting shaft 21 to the rotation of the plastic bag roll 200. This allows for smoother rotation of the plastic bag roll 200 to convey the plastic bags 210 to the bag dispensing opening 11, resulting in smoother bag dispensing operation of the bag dispensing machine 100 without jamming. For example, the mounting shaft 21 can be rotatably mounted on the two mounting frames 22 via bearings or other structures.

[0084] In other embodiments, the portion of the mounting shaft 21 used for mounting the plastic bag roll 200 is rotatable. For example, the left and right ends of the mounting shaft 21 are detachably mounted to two mounting brackets 22, and the middle portion of the mounting shaft 21 in the left-right direction is used for mounting the plastic bag roll 200, and this middle portion is rotatable relative to the left and right ends of the mounting shaft 21.

[0085] The part of the mounting shaft 21 used for mounting the plastic bag roll 200 is rotatable. This not only allows the part of the mounting shaft 21 to rotate together with the plastic bag roll 200 to reduce obstruction to the rotation process of the plastic bag roll 200 and to convey the plastic bag 210 more smoothly, but also reduces the relative movement between the mounting shaft 21 and the mounting frame 22, so that the mounting shaft 21 can be more securely mounted on the mounting frame 22. In turn, the plastic bag roll 200 mounted on the mounting shaft 21 can rotate stably, and the bag picking machine 100 has better stability in picking up bags.

[0086] In some embodiments, as shown in Figures 5-7, the limiting member 31 is located directly below the mounting shaft 21. The plastic bag roll 200 rotates to convey plastic bags 210 to the bag dispensing opening 11. As the plastic bags 210 that make up the plastic bag roll 200 are conveyed one by one to the bag dispensing opening 11 and removed, the volume of the plastic bag roll 200 gradually decreases. Since the plastic bag roll 200 is fitted onto the mounting shaft 21, the limiting member 31 located directly below the mounting shaft 21 can limit the plastic bag roll 200 even after its volume decreases, reducing the possibility of displacement and making the limiting effect on the plastic bag roll 200 more reliable.

[0087] In some embodiments of this utility model, as shown in Figures 1-2, the bag-retrieving machine 100 further includes a baffle 50, which is closable and located outside the bag-retrieving opening 11. The baffle 50 allows the bag-retrieving opening 11 to be opened when the bag is being dispensed, facilitating bag retrieval by the user. The baffle 50 also allows the bag-retrieving opening 11 to be closed when the bag is not being dispensed, reducing the possibility of external dust, small stones, and other impurities entering the bag-retrieving machine 100 through the opening 11 and contaminating the plastic bag 210 or even damaging the internal structure of the bag-retrieving machine 100. This helps maintain the cleanliness of the plastic bag roll 200 and protects the bag-retrieving machine 100.

[0088] In some embodiments, as shown in Figures 1-4 and 6, the bag-retrieving machine 100 further includes an operation module 60, which is located on the machine body 10. The operation module 60 can control the bag feeding assembly 40 to feed bags according to user instructions, thereby controlling the bag-retrieving machine 100 to retrieve bags, facilitating bag retrieval by the user. For example, in some embodiments, as shown in Figures 1-4 and 6, the operation module 60 includes a display screen 61 and a barcode scanner 62. The user can issue a bag-retrieval instruction on the display screen 61 and scan the bag-retrieval QR code on the barcode scanner 62 to control the bag-retrieving machine 100 to deliver the plastic bag 210 to the bag-retrieval opening 11 for the user to retrieve the bag.

[0089] In some embodiments, as shown in FIG1, the bag-retrieving machine 100 further includes a door 70 that is openable and closable on the machine body 10. The door 70 allows the machine body 10 to be opened for replacing the plastic bag roll 200 or for maintenance of the internal structure of the machine body 10, making operation convenient. The door 70 can also close the machine body 10 to reduce the possibility of external impurities entering the machine body 10 and damaging its internal structure, thus protecting the bag-retrieving machine 100. The door 70 can be installed on the machine body 10 by means of hinges or other methods.

[0090] In some embodiments, as shown in Figures 1-4, both the body 10 and the door 70 are provided with handles to move the bag-retrieving machine 100 and open / close the door 70.

[0091] In some embodiments, as shown in Figures 1-4, the bag-retrieving machine 100 further includes multiple movable casters 80 located at the bottom of the machine body 10, facilitating user movement of the bag-retrieving machine 100 to adjust its position and making operation easier. The movable casters 80 can be casters, etc.

[0092] Other configurations and operations of the bag-removing machine 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0093] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0094] In the description of this specification, the references to terms such as "embodiment," "specific embodiment," and "example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0095] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A bag-removing machine (100), characterized in that, include: The machine body (10) is provided with a bag-taking opening (11) communicating with the outside; an installation component (20) is provided inside the machine body (10) and located below the bag-taking opening (11), the installation component (20) is used to install a plastic bag roll (200); a limiting component (30) is provided inside the machine body (10), the limiting component (30) includes at least two limiting parts (31), the two limiting parts (31) are used to limit the opposite ends of the plastic bag roll (200); a bag feeding component (40) is provided inside the machine body (10), the bag feeding component (40) is adapted to convey the plastic bag (210) of the plastic bag roll (200) to the bag-taking opening (11).

2. The bag-removing machine (100) according to claim 1, characterized in that, The spacing between at least two of the limiting components (31) is adjustable.

3. The bag-removing machine (100) according to claim 2, characterized in that, The limiting component (30) further includes a mounting base (32) having a plurality of mounting holes, wherein each of the limiting components (31) is selectively mounted in one of the plurality of mounting holes.

4. The bag-removing machine (100) according to claim 1, characterized in that, The bag feeding assembly (40) further includes at least one first sensor located on one side of the bag feeding assembly (40) along a first direction, the first sensor being used to sense whether the plastic bag (210) has shifted.

5. The bag-removing machine (100) according to claim 4, characterized in that, In the first direction, the minimum distance between the first sensor and the edge of the bag feeding assembly (40) is greater than the minimum distance between the plastic bag (210) and the edge of the bag feeding assembly (40), so that the first sensor contacts the plastic bag (210) at the bag feeding assembly (40), and the first sensor is adapted to issue an alarm signal when separated from the plastic bag (210); or, in the first direction, the minimum distance between the first sensor and the edge of the bag feeding assembly (40) is less than the minimum distance between the plastic bag (210) and the edge of the bag feeding assembly (40), so that the first sensor is spaced apart from the plastic bag (210) at the bag feeding assembly (40), and the first sensor is adapted to issue an alarm signal when in contact with the plastic bag (210).

6. The bag-removing machine (100) according to claim 1, characterized in that, The bag feeding assembly (40) further includes at least one second sensor located at the middle of the bag feeding assembly (40) along a first direction. The plastic bag (210) has a hollow portion (211) at the middle of the first direction. The second sensor is adapted to control the bag feeding assembly (40) to stop feeding the bag when it is opposite to the hollow portion (211).

7. The bag-removing machine (100) according to claim 1, characterized in that, The bag feeding assembly (40) includes a plurality of first rollers and a plurality of second rollers. The plurality of first rollers and the plurality of second rollers are arranged along a first direction. The first rollers and the second rollers are arranged along a second direction. The plurality of first rollers and the plurality of second rollers correspond one-to-one with each other along the second direction and are adapted to clamp the plastic bag (210). The first rollers and the second rollers roll to convey the plastic bag (210) to the bag taking opening (11). The first direction is perpendicular to the second direction.

8. The bag-removing machine (100) according to claim 1, characterized in that, The mounting assembly (20) includes a mounting shaft (21) and two mounting brackets (22). The plastic bag roll (200) is sleeved on the mounting shaft (21), and the two mounting brackets (22) are installed inside the body (10). The mounting shaft (21) is detachably mounted on the two mounting brackets (22).

9. The bag-removing machine (100) according to claim 8, characterized in that, The mounting shaft (21) is rotatably mounted on one of the two mounting brackets (22); or, the portion of the mounting shaft (21) used for mounting the plastic bag roll (200) is rotatable.

10. The bag-removing machine (100) according to any one of claims 1-9, characterized in that, The bag-retrieving machine (100) further includes a baffle (50), which is closable and disposed outside the bag-retrieving opening (11); and / or, the bag-retrieving machine (100) further includes an operation module (60), which is disposed on the machine body (10) and is adapted to control the bag-feeding assembly (40) to feed bags according to user instructions; and / or, the bag-retrieving machine (100) further includes a door (70) closable and disposed on the machine body (10); and / or, the bag-retrieving machine (100) further includes a plurality of movable casters (80), which are disposed at the bottom of the machine body (10).

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