Packaging bag opening device

Abstract

The utility model provides a packaging bag opening device. The packaging bag opening device comprises a support; the bottom bag opening assembly is arranged at the bottom of the support and used for opening the bottom of the packaging bag; the top bag opening assembly is arranged at the top end of the support and used for opening the top of the packaging bag; and the first driving assembly is arranged on the support, and the first driving assembly drives the top bag opening assembly to do reciprocating motion so as to change the distance of the top bag opening assembly, so that the packaging bag is opened. Through the arrangement of the top bag opening assembly and the bottom bag opening assembly, the top and the bottom of a packaging bag are adsorbed, the packaging bag is opened, the top bag opening assembly is driven by the first driving assembly to move in a reciprocating mode, the bottom bag opening assembly is matched with the top bag opening assembly to open the packaging bag, the packaging bag is opened in cooperation with an external packaging bag conveying assembly, and meanwhile the packaging bag is opened. The top bag opening assembly and the bottom bag opening assembly open one packaging bag each time, and it is avoided that too many packaging bags enter the packaging bag, and the bag opening efficiency is reduced.

Description

Technical Field

[0001] This application relates to a bag opening structure, and more particularly to a bag opening device for packaging bags. Background Technology

[0002] In the field of automated packaging production, the automatic bag opening process is a key link affecting overall production efficiency. Current technologies commonly employ multi-suction cup arrays or robotic arms for bag opening, but these methods face several technical bottlenecks in practical applications: First, traditional bag opening devices lack effective bag opening separation control mechanisms, leading to stacking interference from multiple bags during transport and reducing the success rate of opening. Second, conventional equipment often uses unidirectional bag opening actuators, which struggle to effectively overcome the electrostatic adsorption effect of the bags during the suction process, especially for ultra-thin composite film bags, frequently resulting in the accidental opening of two bags simultaneously. Third, the timing coordination between existing bag opening mechanisms and conveying devices is insufficient; when the bags are in a non-ideal position, equipment jamming or even mechanical failure is highly likely.

[0003] In high-speed continuous production lines, traditional bag-opening equipment commonly suffers from the problem of "multiple bags operating simultaneously." Due to the lack of an effective single-bag isolation control mechanism, multiple packaging bags often enter the bag-opening station at the same time. This not only causes abnormal fluctuations in the load of the vacuum adsorption system but also leads to positioning inaccuracies in subsequent filling processes. Although some improvement solutions attempt to identify bags by adding photoelectric sensor arrays, this passive detection method has a slow response time and significantly increases equipment complexity and maintenance costs. Utility Model Content

[0004] This application provides a packaging bag opening device to solve the problems existing in related technologies. The technical solution is as follows:

[0005] This application provides a packaging bag opening device, including:

[0006] support;

[0007] Bottom opening component: The bottom opening component is located at the bottom of the bracket and is used to open the bottom of the packaging bag;

[0008] Top opening component, which is set at the top of the bracket, is used to open the top of the packaging bag;

[0009] A first drive assembly, mounted on a support, drives the top opening assembly to reciprocate, thereby changing the distance of the top opening assembly to open the packaging bag.

[0010] In one implementation,

[0011] The top opening component includes:

[0012] The slide rail is mounted on the bracket.

[0013] Two first adsorption components are arranged opposite each other on a slide rail. A first driving component drives the two first adsorption components to reciprocate in opposite directions to change the distance between the two first adsorption components.

[0014] In one implementation,

[0015] The first adsorption component includes:

[0016] The slider is mounted on the slide rail.

[0017] The clamping blocks are mounted on the slider. When the first drive assembly drives the slider to move, the two clamping blocks reciprocate in opposite directions to change the distance between the two clamping blocks.

[0018] A fixing rod is mounted on the slider.

[0019] At least two mounting blocks, both of which can be adjusted and mounted on the fixed rod;

[0020] The first suction cup is set on the mounting block and adsorbs the packaging bag.

[0021] In one implementation,

[0022] The first driving component includes:

[0023] The drive motor is mounted on the bracket.

[0024] A turntable is mounted on the output end of the drive motor.

[0025] The first connecting rod has one end set on the turntable and the other end of the first connecting rod away from the turntable set on one of the clamping blocks.

[0026] The second connecting rod has one end set on the turntable and the other end set on the clamping block away from the first connecting rod. When the turntable rotates, the first and second connecting rods drive the two clamping blocks to reciprocate, thereby changing the distance between the two clamping blocks.

[0027] In one implementation,

[0028] The connection points between the first and second connecting rods and the turntable are located on both sides of the turntable;

[0029] The connection points between the first and second connecting rods and the turntable are located on the diameter of the turntable.

[0030] In one implementation,

[0031] The bottom opening component includes:

[0032] Adjustment components are mounted on the bracket.

[0033] Two second adsorption components are provided, both of which are mounted on an adjustment component. The adjustment component adjusts the second adsorption components according to the size of the packaging bag.

[0034] Two second drive components are provided, both of which are mounted on the adjustment component. The second drive components control the opening and closing of the corresponding second adsorption components.

[0035] In one implementation,

[0036] The adjustment components include:

[0037] A fixing block is mounted on a bracket and has two mounting slots.

[0038] Two mounting rods are adjustablely mounted on the fixed block, and two mounting rods are adjustablely mounted in the corresponding mounting slots;

[0039] Two mounting bases are adjustablely mounted on corresponding mounting rods, and two second adsorption components and a second driving component are respectively mounted on corresponding mounting bases.

[0040] In one implementation,

[0041] The second adsorption component includes:

[0042] A first clamping plate is mounted on a mounting base, and a second drive assembly drives the first clamping plate to rotate relative to the mounting base.

[0043] The second clamping plate is mounted on the mounting base. When the first clamping plate rotates, the second clamping plate rotates in the opposite direction.

[0044] Two second suction cups are respectively mounted on the first clamping plate and the second clamping plate.

[0045] In one implementation,

[0046] The second adsorption component also includes:

[0047] Two gears are respectively mounted on the first clamping plate and the second clamping plate. The two gears mesh. When the drive assembly drives the first clamping plate to rotate, the second clamping plate rotates in the opposite direction under the action of the gears.

[0048] In one implementation,

[0049] The second drive component includes:

[0050] The cylinder is mounted on the mounting base and drives the first clamping plate to rotate relative to the mounting base.

[0051] The advantages or beneficial effects of the above technical solutions include at least the following:

[0052] The top and bottom opening components attract the top and bottom of the packaging bag and open it. The top opening component is driven to reciprocate by the first drive component, and the bottom opening component works in conjunction with the top opening component to open the packaging bag. With the help of the external packaging bag conveying component, the opening of the packaging bag is completed. At the same time, the top and bottom opening components open one packaging bag at a time to avoid too many packaging bags entering and reducing the opening efficiency.

[0053] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0054] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0055] Figure 1 This is a schematic diagram of the structure of this utility model;

[0056] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0057] Figure 3 for Figure 1 A schematic diagram of the structure of the top-opening pocket assembly and the first drive assembly;

[0058] Figure 4 for Figure 1 Schematic diagram of the bottom opening pocket assembly;

[0059] Figure 5 for Figure 1 A schematic diagram of the structure of the adjustment component;

[0060] Figure 6 for Figure 1 A schematic diagram of the gear structure in the second adsorption component;

[0061] 100. Bracket;

[0062] 200. Bottom opening assembly; 210. Adjustment assembly; 211. Fixing block; 212. Mounting rod; 213. Mounting base; 214. Mounting slot; 220. Second suction assembly; 221. First clamping plate; 222. Second clamping plate; 223. Second suction cup; 224. Gear; 230. Second drive assembly; 231. Cylinder;

[0063] 300. Top opening assembly; 310. Slide rail; 320. First suction assembly; 321. Slider; 322. Clamping block; 323. Fixing rod; 324. Mounting block; 325. First suction cup;

[0064] 400, First drive assembly; 410, Drive motor; 420, Turntable; 430, First connecting rod; 440, Second connecting rod. Detailed Implementation

[0065] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0066] Figures 1-6 This diagram illustrates a structural diagram of a packaging bag opening device according to an embodiment of this application. Figures 1-6 As shown, the bag opening device may include:

[0067] Bracket 100;

[0068] Bottom opening component 200 is set at the bottom of the bracket 100 and is used to open the bottom of the packaging bag;

[0069] Top opening component 300 is disposed at the top of bracket 100 and is used for opening the top of packaging bag;

[0070] A first drive assembly 400 is mounted on a bracket 100. The first drive assembly 400 drives the top opening assembly 300 to reciprocate, thereby changing the distance of the top opening assembly 300 to open the packaging bag.

[0071] In this embodiment, during use, the packaging bag is conveyed to the support 100 through an external production line. It passes between the top opening component 300 and the bottom opening component 200. The first driving component 400 drives the top opening component 300 to open, and the bottom opening component 200 cooperates with the top opening component 300 to adsorb the packaging bag. The top opening component 300 and the bottom opening component 200 reciprocate to open and close the bottom opening component 200 and the top opening component 300. With the help of the external packaging bag conveying component, the opening of the packaging bag is completed.

[0072] The top opening assembly 300 and the bottom opening assembly 200 can be adjusted according to the actual size of the packaging bag;

[0073] Specifically, when multiple bags enter the bottom opening component 200 and the top opening component 300 at the same time, the top opening component 200 and the bottom opening component 300 can separate the multiple bags to avoid multiple bags entering at the same time and affecting the opening efficiency.

[0074] The top opening assembly 300 and the bottom opening assembly 200 are used to attract the top and bottom of the packaging bag and open it. The top opening assembly 300 is driven to reciprocate by the first drive assembly 400, and the bottom opening assembly 200 works in conjunction with the top opening assembly 300 to open the packaging bag. With the help of the external packaging bag conveying assembly, the opening of the packaging bag is completed. At the same time, the top opening assembly 300 and the bottom opening assembly 200 open one packaging bag at a time to avoid too many packaging bags entering and reducing the opening efficiency.

[0075] like Figures 1-3 As shown, in one embodiment,

[0076] Top opening assembly 300 includes:

[0077] Slide rail 310 is mounted on bracket 100;

[0078] Two first adsorption components 320 are arranged opposite each other on the slide rail 310. The first driving component 400 drives the two first adsorption components 320 to reciprocate in opposite directions to change the distance between the two first adsorption components 320.

[0079] In this embodiment, two first adsorption components 320 are provided. The two first adsorption components 320 are driven by the first driving component 400 to reciprocate along the slide rail 310 to change the distance between the two first adsorption components 320, thereby enabling the first adsorption components 320 to adsorb the packaging bag and open the packaging bag.

[0080] like Figures 1-3 As shown, in one embodiment,

[0081] The first adsorption component 320 includes:

[0082] Slider 321 is mounted on slide rail 310;

[0083] Clamping block 322 is disposed on slider 321. When the first driving component 400 drives slider 321 to move, the two clamping blocks 322 reciprocate in opposite directions to change the distance between the two clamping blocks 322.

[0084] A fixing rod 323 is mounted on a slider 321.

[0085] At least two mounting blocks 324, and at least two mounting blocks 324 can be adjusted and set on the fixing rod 323;

[0086] The first suction cup 325 is mounted on the mounting block 324 and adsorbs the packaging bag.

[0087] In this embodiment, both sliders 321 are mounted on the slide rail 310, and each slider 321 is provided with a clamping block 322. The first driving component 400 drives the two clamping blocks 322 to move in opposite directions, thereby changing the distance between the two clamping blocks 322. Under the action of the fixed rod 323 and the mounting block 324, the first suction cup 325 is driven to reciprocate in opposite directions, thereby changing the distance between the corresponding first suction cups 325 and completing the opening and closing of the packaging bag.

[0088] Specifically, the mounting block 324 is set on the fixing rod 323, and at least two mounting blocks 324 are set on each fixing rod 323. The distance between the mounting blocks 324 on the fixing rod 323 can be adjusted according to the actual width of the packaging bag.

[0089] At least two mounting blocks 324 are provided on each fixing rod 323, and a suction cup is provided on each mounting block 324, so that the suction points of the four first suction cups 325 form a quadrilateral, thereby ensuring the stability of opening the packaging bag.

[0090] Furthermore, the first suction cup 325 is adjustablely mounted on the mounting block 324, so that the distance between the first suction cups 325 can be adjusted according to the thickness of the packaging bag;

[0091] Specifically, the clamping block 322 has a gap for clamping the fixing rod 323. When the fixing rod 323 is placed in the gap of the clamping block 322, the gap on the clamping block 322 is clamped by bolts and nuts, so that the fixing rod 323 is fixed on the clamping block 322. The installation distance of the mounting block 324 and the first suction cup 325 is the same as that of the clamping block 322 and the fixing rod 323. The installation is completed by opening a gap in the mounting block 324 and clamping it with bolts and nuts. At the same time, it is convenient to adjust the distance between the mounting blocks 324 on the same fixing rod 323 to accommodate packaging bags of different widths.

[0092] like Figures 1-3 As shown, in one embodiment,

[0093] The first drive component 400 includes:

[0094] Drive motor 410, drive motor 410 is mounted on bracket 100;

[0095] Turntable 420 is mounted on the output end of drive motor 410;

[0096] The first connecting rod 430 has one end set on the turntable 420 and the other end of the first connecting rod 430 away from the turntable 420 is set on one of the clamping blocks 322.

[0097] The second connecting rod 440 has one end mounted on the turntable 420 and the other end of the second connecting rod 440 away from the turntable 420 mounted on the clamping block 322 away from the first connecting rod 430. When the turntable 420 rotates, the first connecting rod 430 and the second connecting rod 440 drive the two clamping blocks 322 to reciprocate, thereby changing the distance between the two clamping blocks 322.

[0098] In this embodiment, the first connecting rod 430 and the second connecting rod 440 are rotatably mounted on the turntable 420 and the two clamping blocks 322, respectively, and bearings are provided at the connection points. The length of the first connecting rod 430 is greater than the length of the second connecting rod 440. When the drive motor 410 drives the turntable 420 to rotate, the turntable 420 pushes the first connecting rod 430 and pulls the second connecting rod 440, causing the two clamping blocks 322 to move in opposite directions, thereby opening the two first suction cups 325 and increasing the distance between the two first suction cups 325, thus completing the opening of the packaging bag.

[0099] When the turntable 420 is rotated in the opposite direction, the turntable 420 pulls the first connecting rod 430 and pushes the second connecting rod 440, causing the two clamping blocks 322 to move towards each other, which in turn causes the two first suction cups 325 to close, reducing the distance between the two first suction cups 325, thereby adsorbing the next packaging bag. The above process is repeated to open the next packaging bag.

[0100] Specifically,

[0101] The connection points of the first connecting rod 430 and the second connecting rod 440 with the turntable 420 are located on both sides of the turntable 420. This ensures that the first connecting rod 430 and the second connecting rod 440 are not located on the same screen, thus avoiding interference between the first connecting rod 430 and the second connecting rod 440 when the turntable 420 rotates.

[0102] The connection points of the first connecting rod 430 and the second connecting rod 440 with the turntable 420 are located at both ends of the diameter of the turntable 420, thereby ensuring that when the turntable 420 rotates, it provides the first connecting rod 430 and the second connecting rod 440 with two opposite forces (pushing force and pulling force), thus ensuring that the two clamping blocks 322 move in opposite directions (towards or in opposite directions).

[0103] like Figures 1-2 and Figures 4-6 As shown, in one embodiment,

[0104] Bottom opening component 200 includes:

[0105] Adjustment component 210 is mounted on bracket 100;

[0106] Two second adsorption components 220 are provided, both of which are mounted on the adjustment component 210. The adjustment component 210 adjusts the second adsorption components 220 according to the size of the packaging bag.

[0107] Two second drive components 230 are provided on the adjustment component 210. The second drive components 230 control the opening and closing of the corresponding second adsorption components 220.

[0108] In this embodiment, two second adsorption components 220 are disposed on the adjustment component 210. By adjusting the component 210, the second adsorption components 220 can be adjusted according to the length and width of the packaging bag to adapt to packaging bags of different sizes. The second drive component 230 drives the second adsorption components 220 to open and close, thereby opening the packaging bag from the bottom, and cooperating with the first suction cup 325 to fully open the packaging bag.

[0109] like Figures 1-2 and Figures 4-5 As shown, in one embodiment,

[0110] Adjustment component 210 includes:

[0111] Fixing block 211 is mounted on bracket 100 and has two mounting slots 214.

[0112] Two mounting rods 212 are adjustablely mounted on the fixing block 211 and are adjustablely mounted in the corresponding mounting slots 214.

[0113] Two mounting bases 213 are adjustablely mounted on corresponding mounting rods 212, and two second adsorption components 220 and a second driving component 230 are respectively mounted on corresponding mounting bases 213.

[0114] In this embodiment, two second adsorption components 220 are respectively disposed on two mounting bases 213, and the two mounting bases 213 are disposed on corresponding mounting rods 212. By adjusting the height of the mounting base 213 relative to the mounting rod 212, the height of the second adsorption component 220 relative to the first suction cup 325 is adjusted to adapt to packaging of different lengths.

[0115] The mounting rod 212 is set in the mounting groove 214. The mounting rod 212 slides in the mounting groove 214 to change the distance between the two second adsorption components 220, thereby adjusting the packaging bags of different widths.

[0116] Specifically, the mounting base 213 and mounting rod 212 are fixed in the same way as the clamping block 322 and fixing rod 323, all by means of nuts and bolts, which facilitates the adjustment of the height and distance of the second adsorption component 220, so as to make quick adjustments according to different types of packaging bags.

[0117] like Figures 1-2 , Figure 4 and Figure 6 As shown, in one embodiment,

[0118] The second adsorption component 220 includes:

[0119] The first clamping plate 221 is disposed on the mounting base 213, and the second driving assembly 230 drives the first clamping plate 221 to rotate relative to the mounting base 213.

[0120] The second clamping plate 222 is mounted on the mounting base 213. When the first clamping plate 221 rotates, the second clamping plate 222 rotates in the opposite direction following the first clamping plate 221.

[0121] Two second suction cups 223 are respectively disposed on the first clamping plate 221 and the second clamping plate 222.

[0122] In this embodiment, the first clamping plate 221 is driven to rotate relative to the mounting base 213 by the second driving component 230. When the first clamping plate 221 rotates, the second clamping plate 222 also rotates relative to the mounting base 213 along with the first clamping plate 221, so that the ends of the first clamping plate 221 and the second clamping plate 222 with the second suction cup 223 move in an arc shape, so that the second suction cup 223 completes the adsorption and opening of the packaging bag. After the opening is completed, the first clamping plate 221 is driven in the opposite direction, so that the second suction cup 223 adsorbs the next packaging bag. The above actions are repeated to complete the opening of the packaging bag.

[0123] Specifically,

[0124] The second adsorption component 220 also includes:

[0125] Two gears 224 are respectively disposed on the first clamping plate 221 and the second clamping plate 222. The two gears 224 mesh. When the drive assembly drives the first clamping plate 221 to rotate, the second clamping plate 222 rotates in the opposite direction to the first clamping plate 221 under the action of the gears 224.

[0126] In this embodiment, the gear 224 causes the first clamping plate 221 to drive the second clamping plate 222 to rotate. At the same time, under the action of the gear 224, the first clamping plate 221 and the second clamping plate 222 rotate in opposite directions (one rotates clockwise and the other rotates counterclockwise) to realize the opening and closing of the first clamping plate 221 and the second clamping plate 222, thereby cooperating with the second suction cup 223 to complete the opening of the packaging bag.

[0127] like Figures 1-2 and Figure 4 As shown, in one embodiment,

[0128] The second drive component 230 includes:

[0129] Cylinder 231 is mounted on mounting base 213. Cylinder 231 drives the first clamping plate 221 to rotate relative to mounting base 213.

[0130] In this embodiment, the cylinder 231 is rotatably mounted on the mounting base 213. The output end of the cylinder 231 is rotatably connected to the end of the first clamping plate 221 away from the second suction cup 223. The cylinder 231 drives the output end to extend and retract, so as to realize the rotation of the first clamping plate 221 around the connection between the first clamping plate 221 and the mounting base 213.

[0131] The functions of each module in each device of this utility model embodiment can be found in the corresponding description in the above method, and will not be repeated here.

[0132] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., 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 this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0133] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0134] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A packaging bag opening device, characterized in that, include: support; Bottom opening bag assembly, which is disposed at the bottom of the bracket and is used to open the bottom of the packaging bag; A top opening assembly is disposed at the top of the bracket for opening the top of the packaging bag; A first driving component is disposed on the bracket. The first driving component drives the top opening component to reciprocate, thereby changing the distance of the top opening component to open the packaging bag.

2. The packaging bag opening device according to claim 1, characterized in that, The top opening pocket assembly includes: A slide rail, which is mounted on the bracket; Two first adsorption components are arranged opposite each other on the slide rail. A first driving component drives the two first adsorption components to reciprocate in opposite directions to change the distance between the two first adsorption components.

3. The packaging bag opening device according to claim 2, characterized in that, The first adsorption component includes: A slider, which is disposed on the slide rail; A clamping block is disposed on the slider. When the first driving component drives the slider to move, the two clamping blocks reciprocate in opposite directions to change the distance between the two clamping blocks. A fixing rod is disposed on the slider; At least two mounting blocks, and both of the mounting blocks are adjustablely mounted on the fixing rod; The first suction cup is disposed on the mounting block and adsorbs the packaging bag.

4. A packaging bag opening device according to claim 3, characterized in that, The first driving component includes: A drive motor, which is mounted on the bracket; A turntable is disposed on the output end of the drive motor; A first connecting rod, one end of which is disposed on the turntable, and the other end of which is away from the turntable, which is disposed on one of the clamping blocks; The second connecting rod has one end disposed on the turntable and the other end of the second connecting rod away from the turntable disposed on the clamping block away from the first connecting rod. When the turntable rotates, the first connecting rod and the second connecting rod drive the two clamping blocks to reciprocate, thereby changing the distance between the two clamping blocks.

5. A packaging bag opening device according to claim 4, characterized in that, The connection points between the first connecting rod and the second connecting rod and the turntable are located on both sides of the turntable; The connection points of the first connecting rod and the second connecting rod with the turntable are located on the diameter of the turntable.

6. A packaging bag opening device according to claim 4, characterized in that, The bottom opening bag assembly includes: An adjustment component, the adjustment component being disposed on the bracket; Two second adsorption components are provided, both of which are disposed on the adjustment component. The adjustment component adjusts the second adsorption components according to the size of the packaging bag. Two second driving components are disposed on the adjustment component, and the second driving components control the opening and closing of the corresponding second adsorption components.

7. A packaging bag opening device according to claim 6, characterized in that, The adjustment component includes: A fixing block, which is mounted on the bracket and has two mounting slots; Two mounting rods are adjustablely mounted on the fixed block and are also adjustablely mounted in the corresponding mounting slots. Two mounting bases are adjustablely mounted on corresponding mounting rods, and two second adsorption components and two second driving components are respectively mounted on corresponding mounting bases.

8. A packaging bag opening device according to claim 7, characterized in that, The second adsorption component includes: A first clamping plate is disposed on the mounting base, and a second driving assembly drives the first clamping plate to rotate relative to the mounting base; The second clamping plate is disposed on the mounting base. When the first clamping plate rotates, the second clamping plate rotates in the opposite direction following the first clamping plate. Two second suction cups are respectively disposed on the first clamping plate and the second clamping plate.

9. A packaging bag opening device according to claim 8, characterized in that, The second adsorption component further includes: Two gears are respectively disposed on the first clamping plate and the second clamping plate. The two gears mesh. When the drive assembly drives the first clamping plate to rotate, the second clamping plate rotates in the opposite direction following the first clamping plate under the action of the gears.

10. A packaging bag opening device according to claim 9, characterized in that, The second driving component includes: A cylinder is mounted on the mounting base, and the cylinder drives the first clamping plate to rotate relative to the mounting base.

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