Packaging bag bearing capacity detection device and detection method thereof

Abstract

The invention discloses a packaging bag bearing capacity detection device and a detection method thereof, and relates to the technical field of packaging bags, the packaging bag bearing capacity detection device comprises a rack, a lifting assembly arranged in the rack, a detection sensing assembly connected to the bottom of the lifting assembly, and the detection sensing assembly is used for collecting packaging bag bearing capacity detection data; the fixing assembly is arranged at the bottom of the detection sensing assembly and used for fixing a packaging bag, the switching mechanism is arranged between the fixing assembly and the detection sensing assembly and used for switching the fixing assembly, and the connecting mechanism is arranged between the fixing assembly and the switching mechanism and used for connecting the fixing assembly and the switching mechanism. According to the packaging bag detection device, the fixing assemblies can be rapidly switched under the condition that the fixing assemblies are not disassembled, so that the fixing assemblies can be conveniently matched with different packaging bags for fixing, and the adaptability and the detection convenience of the detection device are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of packaging bag technology, and in particular to a packaging bag load-bearing capacity testing device and testing method. Background Technology

[0002] With the development of the packaging industry, various types of packaging bags have emerged. Packaging bags refer to bags used to package various items, making it convenient to transport and store goods during production and distribution. They are widely used in daily life and industrial production. Actual figures show that 80% of used plastic bags end up in landfills like regular waste, with only 7% being recycled.

[0003] Currently, before packaging bags are produced and put into use, it is necessary to test the performance of various aspects of the packaging bags, such as their resistance to deformation or their load-bearing capacity. Among them, the load-bearing capacity test is mainly carried out through corresponding load-bearing capacity testing equipment. Generally, the packaging bag is fixed by a fixing device, and then weights are continuously added to the packaging bag. The data changes are detected by using a tension sensor to test its load-bearing capacity.

[0004] However, the aforementioned load-bearing capacity testing equipment suffers from poor compatibility with fixing devices: 1. The fixing devices are mostly fixed with fasteners or screws. Each time, the fixing devices need to be disassembled and replaced with appropriate ones for different packaging bags. 2. Because the fixing device uses bolts or fasteners for connection, disassembly is not convenient; Therefore, we propose a packaging bag load-bearing capacity testing device and its testing method. Summary of the Invention

[0005] The purpose of this invention is to provide a packaging bag load-bearing capacity testing device and method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: In a first aspect, the present invention provides a packaging bag load-bearing capacity testing device, comprising: frame; A lifting assembly, wherein the lifting assembly is disposed inside the frame; A detection sensing component is connected to the bottom of the lifting component, and the detection sensing component is used to collect data on the load-bearing capacity of the packaging bag. A fixing component is disposed at the bottom of the detection sensing component and is used to fix the packaging bag. A switching mechanism is disposed between the fixed component and the detection sensing component, and the switching mechanism is used to switch the fixed component; A connecting mechanism is disposed between the fixed component and the switching mechanism, and the connecting mechanism is used to connect the fixed component and the switching mechanism.

[0007] Preferably, the switching mechanism includes: A rotating assembly, which is connected to the bottom of the detection sensing assembly; A locking component is disposed at the end of the rotating component and is used to lock the rotating component.

[0008] Preferably, the rotating component includes: A truncated cone, which is fixedly connected to the bottom of the detection sensing component; A through hole, wherein the through hole is formed in the middle of the frustum; A connecting circular block is provided on one side of a frustum. A rotating column is fixedly connected to the middle of the connecting circular block, and the rotating column is inserted into a through hole.

[0009] Preferably, the locking component includes: A locking groove is formed at one end of a through hole; A locking block is fixedly connected to the outer surface of a connecting circular block, and both the outer contour of the locking block and the inner contour of the locking groove are set as triangles. A locking threaded rod is fixedly connected to the end face of the rotating column, and a locking ring is threaded to one end of the locking threaded rod.

[0010] Preferably, the connecting mechanism includes: A circular block assembly; the circular block assembly is fixedly connected to the side of the rotating assembly; A positioning component is inserted into the side of the circular block component; An extrusion assembly is disposed on one side of a positioning assembly, and a limit assembly is provided between the extrusion assembly and the positioning assembly.

[0011] Preferably, the circular block assembly includes a connecting cylinder fixedly connected to the middle of the rotating assembly and a fixed circular block fixedly connected to one end of the connecting cylinder; The positioning assembly includes a limiting post that is inserted into the fixed circular block, a U-shaped block that is fixedly connected to one end of the limiting post, and a limiting nut that is threadedly connected to the other end of the limiting post. The extrusion assembly includes an extrusion threaded rod that is threadedly connected to the center of a fixed circular block, an extrusion circular block that is fixedly connected to one end of the extrusion threaded rod, and a handle rod that is hinged to the center of the extrusion circular block. The limiting component includes a limiting plate that is inserted into the U-shaped block, a limiting block that is fixedly connected to the side of the limiting plate, and a limiting groove formed on the outer surface of the fixed circular block and inside the U-shaped block, wherein the width of the limiting plate is adapted to the width of the U-shaped block.

[0012] Preferably, the detection sensing component includes a connecting block fixedly connected to the bottom of the rotating component and a tension sensor installed in the middle of the connecting block; The lifting assembly includes a lifting power source fixedly installed at the bottom of the frame and a lifting plate fixedly connected to the output end of the lifting power source, with the bottom of the lifting plate fixedly connected to the top of the connecting block.

[0013] Preferably, the fixing component includes: A U-shaped plate, the U-shaped plate being fixedly connected to the end of the limiting component; A fixed threaded rod is threadedly connected to the middle of the U-shaped plate; A rotating circular block is fixedly connected to one end of a fixed threaded rod, and a fixed plate is rotatably connected to the other end of the fixed threaded rod, with the fixed plate located inside the U-shaped plate.

[0014] Preferably, the fixing component further includes a hook fixedly connected to the end of the limiting component, and the hook is used to hang the packaging bag.

[0015] Secondly, the present invention provides a detection method for a packaging bag load-bearing capacity testing device, which is implemented as described above for a packaging bag load-bearing capacity testing device, and the specific steps of the detection method are as follows: Step 1: Based on the external characteristics of the packaging bag, determine the fixing components to be used, and then determine whether the fixing components to be used are in a vertically downward state. If they are in a vertically downward state, use the fixing components to fix the packaging bag, and then use the lifting components and detection sensor components for detection. Step 2: If it is not in a vertically downward state, rotate the locking ring so that the locking component no longer locks the rotating component. Then push the rotating column outward to separate the locking groove from the locking block. Then use the rotating column to rotate to switch the fixed component until the required fixed component is in a vertically downward state. Then reverse the locking ring to lock the rotating component. Then use the detection sensor component and the lifting component for detection. Step 3: By rotating the extrusion assembly, the extrusion block stops extruding the U-shaped block. Then, move the limiting assembly towards the U-shaped block to move the positioning assembly. Then, remove the corresponding limiting plate from the U-shaped block. This allows the fixing components that need to be disassembled to be removed individually, so that a suitable fixing component can be replaced.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention uses a rotating locking component to de-lock the rotating component, and then rotates the rotating component to switch the required fixing component to a vertically downward state. Then, the locking component locks the rotating component. This design allows for quick switching of the fixing component without disassembling it, making it easy to adapt the fixing component to different packaging bags for fixing, thus greatly improving the adaptability and convenience of the detection device. 2. This invention uses a rotating extrusion component to stop extruding the positioning component, then moves the fixing component to one side, causing the limiting component to limit the fixing component, thereby removing the fixing component for replacement. During installation, the limiting component limits the fixing component, and then the extrusion component is reversed to extrude the positioning component, thereby using the positioning component and the limiting component to fix the fixing component, thus realizing the installation of the fixing component. This design facilitates the replacement of a single fixing component without affecting other fixing components, and the overall installation and disassembly operations are simple. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 For the present invention Figure 1 A magnified view of the structure at point A in the middle; Figure 3 This is a schematic diagram of the limiting component structure of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at point B in the middle; Figure 5 This is a schematic diagram of the locking block structure of the present invention; Figure 6 This is a schematic diagram of the positioning component structure of the present invention; Figure 7 This is a schematic diagram of the limiting block structure of the present invention.

[0018] In the attached image: 1. Frame; 2. Fixing assembly; 201. U-shaped plate; 202. Fixing threaded rod; 203. Rotating block; 204. Fixing plate; 205. Hook; 3. Block assembly; 301. Fixing block; 302. Connecting cylinder; 4. Positioning assembly; 401. U-shaped block; 402. Limiting post; 403. Limiting nut; 5. Extrusion assembly; 501. Extrusion threaded rod; 502. Extrusion block; 503. Handle lever; 6. Limiting Components; 601, Limiting plate; 602, Limiting block; 603, Limiting groove; 7, Rotating component; 701, Connecting round block; 702, Rotating column; 703, Through hole; 704, Frustum; 8, Locking component; 801, Locking groove; 802, Locking block; 803, Locking threaded rod; 804, Locking ring; 9, Connecting block; 10, Tension sensor; 11, Lifting component; 1101, Lifting power source; 1102, Lifting plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] This invention provides, for example Figures 1-7 The image shows a device for testing the load-bearing capacity of a packaging bag.

[0021] Example 1: Includes a frame 1, a lifting assembly 11 disposed inside the frame 1, a detection sensor assembly connected to the bottom of the lifting assembly 11 for collecting data on the load-bearing capacity of the packaging bag, a fixing assembly 2 disposed at the bottom of the detection sensor assembly for fixing the packaging bag, a switching mechanism disposed between the fixing assembly 2 and the detection sensor assembly for switching the fixing assembly 2, and a connecting mechanism disposed between the fixing assembly 2 and the switching mechanism for connecting the fixing assembly 2 and the switching mechanism; the fixing assembly 2 is switched by the switching mechanism so that the fixing assembly 2 adapted to the packaging bag is in a vertically downward state, and then the bag is moved... A heavy object is placed inside the bag, and the bag is then secured using the fixing component 2. The lifting component 11 then moves the fixing component 2 and the bag up and down repeatedly to observe the bag's condition and view the data from the detection sensor component, thereby determining the bag's load-bearing capacity. This completes the test of the bag's load-bearing capacity. Furthermore, the fixing component 2 can be quickly and individually replaced using the connecting mechanism. This design allows for quick switching of the required fixing component 2 without disassembly, enabling the securing of different bags and improving the adaptability of the detection device. It also facilitates the replacement of a single fixing component 2.

[0022] Furthermore, the switching mechanism includes a rotating component 7 connected to the bottom of the detection sensing component, and a locking component 8 disposed at the end of the rotating component 7, which is used to lock the rotating component 7. When it is necessary to switch to the required fixed component 2, the locking component 8 is rotated to release the locking component 8 from locking the rotating component 7. Then, the rotating component 7 is rotated to switch the required fixed component 2 to a vertically downward state. Then, the locking component 8 is used to lock the rotating component 7. This design allows for quick switching of the fixed component 2 without disassembling it, making it easy for the fixed component 2 to adapt to different packaging bags for fixation, thus greatly improving the adaptability and convenience of the detection device.

[0023] Furthermore, the rotating component 7 includes a frustum 704, which is fixedly connected to the bottom of the detection sensing component. A through hole 703 is opened in the middle of the frustum 704. A connecting block 701 is set on one side of the frustum 704, and a rotating column 702 is fixedly connected to the middle of the connecting block 701. The rotating column 702 is inserted into the through hole 703. When switching the fixed component 2, the rotating column 702 is mainly used to rotate along the inside of the through hole 703, thereby realizing the rotation of the fixed component 2 and switching the required fixed component 2 to a vertically downward state. Then, the locking component 8 locks the rotating column 702, so that the rotating column 702 will no longer rotate. This facilitates the quick switching of the fixed component 2 without disassembling it, greatly improving the adaptability and convenience of the detection device.

[0024] Furthermore, the locking assembly 8 includes a locking groove 801, which is formed at one end of the through hole 703. A locking block 802 is fixedly connected to the outer surface of the connecting circular block 701, and the outer contour of the locking block 802 and the inner contour of the locking groove 801 are both triangular. A locking threaded rod 803 is fixedly connected to the end face of the rotating column 702, and a locking ring 804 is threadedly connected to one end of the locking threaded rod 803. When it is necessary to switch the fixing assembly 2, the locking ring 804 is rotated so that it is no longer tightly attached to the frustum 704. Then, the rotating column 702 is moved outward so that it moves along the through hole 703 until the locking groove 801 separates from the locking block 802. At this time, the locking assembly 8 is released from the rotation. Component 7 is locked, which allows the rotating column 702 to rotate, thereby switching the fixed component 2. After switching, the rotating column 702 is moved back, so that the locking block 802 is inserted into the locking groove 801. Then, the locking ring 804 is reversed, so that the locking block 802 is stably inserted into the locking groove 801, thereby limiting the rotating column 702. This achieves the locking component 8 locking the rotating component 7. The triangular locking block 802 and the locking groove 801 facilitate the full contact and compression of their sides, thus forming a good mutual limiting effect. Moreover, it reduces the large-scale shaking of the rotating component 7 due to the fitting accuracy problem after the locking component 8 is locked, which would affect the test results of the packaging bag's load-bearing capacity.

[0025] Furthermore, the connecting mechanism includes a circular block assembly 3; the circular block assembly 3 is fixedly connected to the side of the rotating assembly 7, the positioning assembly 4 is inserted into the side of the circular block assembly 3, the pressing assembly 5 is disposed on one side of the positioning assembly 4, and a limit assembly 6 is provided between the pressing assembly 5 and the positioning assembly 4; when it is necessary to disassemble a fixed assembly 2 individually, by rotating the pressing assembly 5, the pressing assembly 5 stops pressing the positioning assembly 4, and then the fixed assembly 2 is moved to one side, so that the limit assembly 6 limits the fixed assembly 2, thereby removing the fixed assembly 2 for replacement. During installation, the limit assembly 6 is used to limit the fixed assembly 2, and then the rotation is reversed. The extrusion component 5 extrudes the positioning component 4, thereby fixing the fixing component 2 using the positioning component 4 and the limiting component 6, thus realizing the installation of the fixing component 2. This design facilitates the individual replacement of a fixing component 2 without affecting other fixing components 2. At the same time, the overall installation and disassembly operations are simple. The outer contour of the limiting block 602 and the inner contour of the limiting groove 603 are both set as conical, which facilitates the stable insertion of the limiting block 602 into the limiting groove 603, thereby limiting each other. After installation, the limiting block 602 and the limiting groove 603 fit tightly, preventing the fixing component 2 from being unstable and affecting the subsequent load-bearing capacity test results.

[0026] Furthermore, the circular block assembly 3 includes a connecting cylinder 302 fixedly connected to the middle of the rotating assembly 7 and a fixed circular block 301 fixedly connected to one end of the connecting cylinder 302; the positioning assembly 4 includes a limiting post 402 inserted into the fixed circular block 301, a U-shaped block 401 fixedly connected to one end of the limiting post 402, and a limiting nut 403 threadedly connected to the other end of the limiting post 402; the pressing assembly 5 includes a pressing threaded rod 501 threadedly connected to the middle of the fixed circular block 301, a pressing circular block 502 fixedly connected to one end of the pressing threaded rod 501, and a handle rod 503 hinged to the middle of the pressing circular block 502; the limiting assembly 6 includes a limiting plate 601 inserted into the U-shaped block 401. The limiting block 602 is fixedly connected to the side of the limiting plate 601, and the limiting groove 603 is opened on the outer surface of the fixed circular block 301 and inside the U-shaped block 401. The width of the limiting plate 601 is adapted to the width of the U-shaped block 401. The outer contour of the limiting block 602 and the inner contour of the limiting groove 603 are both set as conical, so that the limiting block 602 can be stably inserted into the limiting groove 603 to limit each other. After installation, the limiting block 602 and the limiting groove 603 fit tightly to avoid instability of the fixing component 2, which would affect the subsequent load-bearing capacity test results. By flipping the handle 503 outward by 180 degrees, the handle 503 is moved from the pressing circular block 502. Flip it over, then rotate the handle 503 to rotate the extrusion block 502 and the extrusion threaded rod 501 until the extrusion block 502 moves away from the U-shaped block 401. Then move the fixing component 2 to one side of the U-shaped block 401, causing the limiting plate 601 to move along with the U-shaped block 401, so that the limiting post 402 moves along the fixing block 301 until the limiting block 602 on the limiting plate 601 near the fixing block 301 is separated from the limiting groove 603 on the fixing block 301 by a certain distance. Then move the limiting plate 601 outward, so that the limiting block 602 on the limiting plate 601 near the U-shaped block 401 is separated from the limiting groove 603 on the U-shaped block 401, thereby setting the limiting plate... 601 is removed from inside the U-shaped block 401. During installation, the limiting plate 601 is inserted into the U-shaped block 401, and then the limiting block 602 on the limiting plate 601 near the fixed round block 301 is inserted into the limiting groove 603 on the fixed round block 301. Then, the U-shaped block 401 is moved back so that the limiting groove 603 on the U-shaped block 401 is engaged with the limiting block 602. Then, the handle 503 is reversed so that the extrusion threaded rod 501 drives the extrusion round block 502 to extrude the U-shaped block 401, thereby fixing the limiting plate 601 inside the U-shaped block 401. This design facilitates quick and easy replacement of one or all of the corresponding fixing components 2, and the overall operation is simple and requires no tools.

[0027] Furthermore, the detection sensing component includes a connecting block 9 fixedly connected to the bottom of the rotating component 7 and a tension sensor 10 installed in the middle of the connecting block 9. After the fixing component 2 fixes the packaging bag, the packaging bag and the weight inside the packaging bag will transmit the data to the back-end terminal, such as a computer, through the tension sensor 10, so as to facilitate the judgment of the packaging bag's load-bearing capacity performance. This design can be obtained from existing technology and will not be described in detail here.

[0028] The lifting assembly 11 includes a lifting power source 1101 fixedly installed at the bottom of the frame 1 and a lifting plate 1102 fixedly connected to the output end of the lifting power source 1101. The bottom of the lifting plate 1102 is fixedly connected to the top of the connecting block 9. The lifting power source 1101 can drive the lifting plate 1102 to move up and down frequently. For example, the lifting power source 1101 is specifically an electric telescopic rod. The lifting plate 1102 is slidably set on the frame 1, driving the packaging bag to move up and down, thereby simulating the actual scenario of a hand-held packaging bag.

[0029] Furthermore, the fixing component 2 includes a U-shaped plate 201, which is fixedly connected to the end of the limiting component 6. A fixing threaded rod 202 is threadedly connected to the middle of the U-shaped plate 201. A rotating block 203 is fixedly connected to one end of the fixing threaded rod 202. The other end of the fixing threaded rod 202 is rotatably connected to a fixing plate 204, which is located inside the U-shaped plate 201. For example, when dealing with a packaging bag without handles, the edge or seal of the packaging bag is placed inside the U-shaped plate 201. Then, the rotating block 203 is rotated, causing the fixing threaded rod 202 to move the fixing plate 204 closer to and squeeze the packaging bag, thereby fixing the packaging bag. At the same time, the fixing component 2 can be replaced with a suitable one for packaging bags of different sizes.

[0030] Example 2: Example 2 differs from Example 1 in that the fixing component 2 further includes a hook 205 fixedly connected to the end of the limiting component 6, and the hook 205 is used to hang the packaging bag; the hook 205 can be obtained from the prior art, and is also a prior art other packaging bag with handles that can be fixed, thereby facilitating the fixing of the packaging bag with handles, wherein the fixing component 2 is customized according to the shape of the packaging bag in the prior art.

[0031] A method for testing the load-bearing capacity of a packaging bag, comprising the aforementioned packaging bag load-bearing capacity testing device, and the specific steps of the testing method are as follows: Step 1: Based on the external characteristics of the packaging bag, determine the fixing component 2 to be used, and then determine whether the fixing component 2 to be used is in a vertically downward state. If it is in a vertically downward state, use the fixing component 2 to fix the packaging bag, and then use the lifting component 11 and the detection sensor component for detection. Step 2: If the component is not in a vertically downward position, rotate the locking ring 804 so that the locking component 8 no longer locks the rotating component 7. Then push the rotating column 702 outward so that the locking groove 801 separates from the locking block 802. Then use the rotating column 702 to rotate, thereby switching the fixed component 2 until the required fixed component 2 is in a vertically downward position. Then reverse the locking ring 804 so that the locking component 8 locks the rotating component 7. Then use the detection sensor component and the lifting component 11 for detection. Step 3: By rotating the extrusion component 5, the extrusion block 502 stops extruding the U-shaped block 401. Then, the limiting component 6 is moved towards the U-shaped block 401, causing the positioning component 4 to move. Then, the corresponding limiting plate 601 is removed from the U-shaped block 401, so that the fixing component 2 that needs to be disassembled can be disassembled separately, and a suitable fixing component 2 can be replaced.

[0032] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A packaging bag load-bearing capacity testing device, characterized in that, include: Rack (1); A lifting assembly (11) is disposed inside the frame (1); A detection sensing component is connected to the bottom of the lifting component (11), and the detection sensing component is used to collect the load-bearing capacity detection data of the packaging bag; Fixing component (2), the fixing component (2) is disposed at the bottom of the detection sensing component, and the fixing component (2) is used to fix the packaging bag; A switching mechanism is disposed between the fixed component (2) and the detection sensing component, and the switching mechanism is used to switch the fixed component (2). A connecting mechanism is provided between the fixed component (2) and the switching mechanism, and the connecting mechanism is used to connect the fixed component (2) and the switching mechanism.

2. The packaging bag load-bearing capacity testing device according to claim 1, characterized in that, The switching mechanism includes: Rotating component (7), the rotating component (7) is connected to the bottom of the detection sensing component; A locking component (8) is disposed at the end of the rotating component (7) and is used to lock the rotating component (7).

3. The packaging bag load-bearing capacity testing device according to claim 2, characterized in that, The rotating component (7) includes: A frustum (704) is fixedly connected to the bottom of the detection sensing component; A through hole (703) is provided in the middle of the frustum (704); A connecting block (701) is provided on one side of a frustum (704). A rotating column (702) is fixedly connected to the middle of the connecting block (701), and the rotating column (702) is inserted into the through hole (703).

4. The packaging bag load-bearing capacity testing device according to claim 3, characterized in that, The locking component (8) includes: A locking groove (801) is provided at one end of a through hole (703); Locking block (802), the locking block (802) is fixedly connected to the outer surface of the connecting round block (701), and the outer contour of the locking block (802) and the inner contour of the locking groove (801) are both set as triangles; A locking threaded rod (803) is fixedly connected to the end face of the rotating column (702), and a locking ring (804) is threadedly connected to one end of the locking threaded rod (803).

5. The packaging bag load-bearing capacity testing device according to claim 2, characterized in that, The connecting mechanism includes: Circular block assembly (3); the circular block assembly (3) is fixedly connected to the side of the rotating assembly (7); Positioning component (4), which is inserted into the side of the circular block component (3); An extrusion assembly (5) is disposed on one side of a positioning assembly (4), and a limit assembly (6) is disposed between the extrusion assembly (5) and the positioning assembly (4).

6. The packaging bag load-bearing capacity testing device according to claim 5, characterized in that, The circular block assembly (3) includes a connecting cylinder (302) fixedly connected to the middle of the rotating assembly (7) and a fixed circular block (301) fixedly connected to one end of the connecting cylinder (302). The positioning component (4) includes a limiting post (402) that is inserted into the fixed round block (301), a U-shaped block (401) that is fixedly connected to one end of the limiting post (402), and a limiting nut (403) that is threadedly connected to the other end of the limiting post (402). The extrusion assembly (5) includes an extrusion threaded rod (501) threadedly connected to the middle of the fixed circular block (301), an extrusion circular block (502) fixedly connected to one end of the extrusion threaded rod (501), and a handle rod (503) hinged to the middle of the extrusion circular block (502). The limiting component (6) includes a limiting plate (601) that is inserted into the U-shaped block (401), a limiting block (602) that is fixedly connected to the side of the limiting plate (601), and a limiting groove (603) formed on the outer surface of the fixed circular block (301) and inside the U-shaped block (401). The width of the limiting plate (601) is adapted to the width of the U-shaped block (401).

7. The packaging bag load-bearing capacity testing device according to claim 6, characterized in that, The detection sensing component includes a connecting block (9) fixedly connected to the bottom of the rotating component (7) and a tension sensor (10) installed in the middle of the connecting block (9). The lifting assembly (11) includes a lifting power source (1101) fixedly installed at the bottom of the frame (1) and a lifting plate (1102) fixedly connected to the output end of the lifting power source (1101), and the bottom of the lifting plate (1102) is fixedly connected to the top of the connecting block (9).

8. The packaging bag load-bearing capacity testing device according to claim 5, characterized in that, The fixing component (2) includes: U-shaped plate (201), the U-shaped plate (201) is fixedly connected to the end of the limiting component (6); A fixed threaded rod (202) is threadedly connected to the middle of the U-shaped plate (201); Rotate the circular block (203), which is fixedly connected to one end of the fixed threaded rod (202). The other end of the fixed threaded rod (202) is rotatably connected to the fixed plate (204), and the fixed plate (204) is located inside the U-shaped plate (201).

9. The packaging bag load-bearing capacity testing device according to claim 5, characterized in that, The fixing component (2) also includes a hook (205) fixedly connected to the end of the limiting component (6), and the hook (205) is used to hang the packaging bag.

10. A method for testing the load-bearing capacity of a packaging bag, comprising the packaging bag load-bearing capacity testing device according to any one of claims 1 to 9, characterized in that, The specific steps of the detection method are as follows: Step 1: Based on the external characteristics of the packaging bag, determine the fixing component (2) to be used, and then determine whether the fixing component (2) to be used is in a vertically downward state. If it is in a vertically downward state, use the fixing component (2) to fix the packaging bag, and then use the lifting component (11) and the detection sensor component to detect it. Step 2: If it is not in a vertically downward state, rotate the locking ring (804) so ​​that the locking component (8) no longer locks the rotating component (7), then push the rotating column (702) outward so that the locking groove (801) separates from the locking block (802), and then use the rotating column (702) to rotate, thereby switching the fixed component (2) until the fixed component (2) to be used is in a vertically downward state, then reverse the locking ring (804) so ​​that the locking component (8) locks the rotating component (7), and then use the detection sensor component and the lifting component (11) to perform detection; Step 3: By rotating the extrusion assembly (5), the extrusion block (502) stops extruding the U-shaped block (401). Then, the limiting assembly (6) is moved towards the U-shaped block (401) so that the positioning assembly (4) moves. Then, the corresponding limiting plate (601) is removed from the U-shaped block (401), so that the fixing assembly (2) to be disassembled can be disassembled separately and a suitable fixing assembly (2) can be replaced.

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