Packaging bag fracture resistance testing device

Abstract

The utility model relates to the technical field of packaging bag testing equipment, in particular to a packaging bag fracture resistance testing device which comprises a base, a counting assembly, a driving assembly and a plurality of groups of clamping assemblies used for clamping the edge of a packaging bag are assembled on the base, and the clamping assemblies are arranged at intervals. A test space is formed between the clamping assemblies, at least one group of clamping assemblies is assembled with the base in a sliding manner and moves back and forth towards the other group of clamping assemblies, the driving assembly is used for pushing the clamping assemblies to move back and forth, the counting assembly is used for recording the back and forth movement times of the clamping assemblies, and the counting assembly is used for counting the back and forth movement times of the clamping assemblies. The process of extrusion deformation and pressure relief recovery is simulated, the number of times of compression of the packaging bag in the simulation test is recorded, and the fracture resistance of the packaging bag is quantified and used for evaluating the fracture resistance of the packaging bag, so that the risk of fracture of the food packaging bag in the transportation and use process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bag testing equipment, in particular to a packaging bag anti-breakage testing device. Background Art

[0002] Packaging bags are a necessity in our daily lives, widely used to hold a variety of items. They not only facilitate our lives but also ensure safe and portable use. Especially when used for food packaging, packaging bags provide a relatively closed environment, effectively reducing food contact with the outside world, thereby keeping the food clean and hygienic. By filling the bag with inert gas to remove oxygen and then sealing it, oxidation can be effectively prevented, thereby extending the shelf life of the food. This method is used, for example, in mooncake packaging. Therefore, the sealing requirements for food packaging bags are particularly strict. Any rupture of the bag could cause the food inside to deteriorate, affecting food safety.

[0003] Currently, to enhance the aesthetics of packaging or reduce logistics costs, food packaging bags are often stacked and placed in boxes. However, during the packing, stacking, transportation, and handling processes, the flexible materials of the packaging bags are easily squeezed. As the frequency of transportation increases, the number of times the packaging bags are squeezed, deformed, and pressure-released and restored increases, causing the bags to break and leak. This is especially likely to occur at the corners of the bags, which can cause the food inside to deteriorate, thus affecting food safety.

[0004] Therefore, it is necessary to conduct quality inspection on food packaging bags. By conducting tensile and compressive tests on the packaging bags, the extrusion deformation and pressure release process experienced by the packaging bags during packing, stacking, transportation and handling can be simulated. By testing how many times the packaging bags can withstand extrusion deformation and pressure release, it can be used to evaluate the packaging bags' anti-rupture performance and use it as a quantitative indicator for food packaging bag quality inspection. Utility Model Content

[0005] In order to test the number of times food packaging bags can withstand folding and breaking, quantify the number of times they are subjected to tension and compression, and reduce manual detection errors, the present application provides a packaging bag folding and breaking resistance testing device.

[0006] The present invention provides a packaging bag anti-breakage test device that adopts the following technical solutions:

[0007] A packaging bag anti-breakage testing device includes a base, on which are assembled a counting component, a driving component, and a clamping component for clamping the edge of the packaging bag. The clamping components are arranged in multiple groups at intervals, and a test space is formed between the clamping components. At least one group of the clamping components is slidably assembled with the base and moves back and forth toward another group of the clamping components. The driving component is used to push the clamping components back and forth, and the counting component is used to record the number of back and forth movements of the clamping components.

[0008] Preferably, the clamping assembly is provided in two groups, and the two groups of the clamping assemblies are arranged at intervals along the longitudinal direction of the base. The clamping assembly includes a slider and a clamping block. The slider is slidably assembled with the base, and the clamping block is slidably assembled with the slider and is used to clamp the packaging bag.

[0009] Preferably, it also includes two groups of guide rods, the base is arranged in a U shape, the two ends of the guide rods are respectively connected to the two longitudinal side walls of the base, the two groups of guide rods are arranged in parallel and spaced apart along the transverse direction of the base, and the slider is provided with two groups of guide holes for sliding assembly with the guide rods.

[0010] Preferably, the clamping assembly also includes a vertical adjustment screw, a sliding cavity is opened on the longitudinal side wall of the slider, the clamping block slides in the inner wall of the sliding cavity, the top wall of the slider is opened with a first threaded hole connected to the sliding cavity, the vertical adjustment screw is threadedly connected to the inner wall of the first threaded hole, and one end of the vertical adjustment screw is rotatably connected to the top wall of the slider.

[0011] Preferably, the clamping assembly also includes two groups of guide rods, which are arranged at intervals along the lateral direction of the clamping block, one end of the guide rod is connected to the top wall of the clamping block, and the top wall of the slider is provided with a guide hole connected to the sliding cavity, the guide rod is slidably assembled with the guide hole, and part of the guide rod is exposed on the top wall of the guide hole.

[0012] Preferably, the clamping assembly further includes a rubber pad connected to the bottom wall of the clamping block.

[0013] Preferably, it also includes a longitudinal adjustment screw, which is connected to a slider of one group of the clamping assemblies, and is located between the two groups of guide rods. A second threaded hole is provided on the longitudinal side wall of the base, and the longitudinal adjustment screw is threadedly connected to the inner wall of the second threaded hole.

[0014] Preferably, the driving assembly includes a motor, a rotating block and a transmission rod, the motor is arranged on a side away from the longitudinal adjustment screw, the rotating end of the motor is connected to one end of the rotating block, and the two ends of the transmission rod are respectively rotatably assembled with the other end of the rotating block and another group of sliders of the clamping assembly.

[0015] Preferably, the driving assembly further comprises an adjusting rod, the rotating block is provided with a long slot, the adjusting rod is assembled with the inner wall of the long slot, and part of the adjusting rod is exposed on the side wall of the rotating block and is rotatably assembled with one end of the transmission rod.

[0016] Preferably, the counting component includes a display screen and a sensor. The sensor is mounted on the base and is used to detect the number of rotations of the rotating block. The display screen is electrically connected to the sensor and is used to display the number of sensing times of the sensor.

[0017] The beneficial effects of the utility model are:

[0018] By setting up a counting component, a driving component, and a clamping component, the packaging bag is clamped to perform a push-pull test to simulate the process of the packaging bag being compressed, squeezed, deformed, and then recovering after pressure relief during packing, transportation, and handling. The number of times the packaging bag is compressed in the simulation test is recorded, and the folding and rupture resistance of the packaging bag is quantified to evaluate the rupture resistance of the packaging bag, thereby reducing the risk of rupture of packaged food during transportation and use.

[0019] Testing the folding and tearing resistance of packaging bags through automated equipment facilitates comparative testing of the differences in folding and tearing resistance between different packaging bags, provides reliable data support, and ensures the uniformity and comparability of test results. In addition, automated equipment can perform tests continuously, improving detection efficiency and reducing uneven force and counting errors caused by manual operation.

[0020] By providing vertical and longitudinal adjustment screws, the clamping assembly can be compatible with packaging bags of different sizes for breakage resistance testing, improving the versatility of the clamping assembly and being applicable to a variety of packaging specifications. This improves the versatility and flexibility of the equipment, allowing the test device to quickly switch between different products. In addition, after adjusting the clamping assembly, it is ensured that packaging bags of different specifications can be evaluated under optimal test conditions, thereby improving the reliability of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram in the embodiment of the present application;

[0022] Figure 2 This is the main view in the embodiment of the present application;

[0023] Figure 3 is a top view of an embodiment of the present application;

[0024] Figure 4 This is a usage state diagram in an embodiment of the present application;

[0025] Figure 5It is a partial disassembled diagram in the embodiment of the present application;

[0026] Figure 6 yes Figure 5 A partial enlarged view of point A in the middle;

[0027] Figure 7 yes Figure 5 A top view of

[0028] Figure 8 This is the main view of the clamping assembly in an embodiment of the present application.

[0029] Explanation of the accompanying drawings: 1. Base; 101. Guide rod; 102. Vertical adjustment screw; 201. Display screen; 202. Sensor; 301. Motor; 302. Rotating block; 3021. Long groove; 303. Transmission rod; 304. Adjustment rod; 4. Clamping assembly; 401. Test space; 402. Slider; 4021. Sliding cavity; 403. Clamping block; 404. Guide sleeve; 405. Vertical adjustment screw; 406. Guide rod; 407. Rubber pad; 5. Housing; 601. Processor; 602. Start / stop button; 603. Speed regulator. DETAILED DESCRIPTION

[0030] This section will describe the specific embodiments of the present application in detail. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that each technical feature and the overall technical solution of the present application can be understood intuitively and vividly, but it cannot be understood as a limitation on the scope of protection of the present application.

[0031] In the description of this application, if there is a description of orientation, such as "upper", "lower", "front", "back", "left", "right", etc., the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it should not be understood as a limitation on this application. When a feature is referred to as being "disposed", "fixed", or "connected" to another feature, it can be directly disposed, fixed, or connected to the other feature, or indirectly disposed, fixed, or connected to the other feature.

[0032] In the description of this application, if the orientation description is involved, for example, the orientation or position relationship indicated by "horizontal", "longitudinal", "vertical" etc. is based on the attached Figure 1 In the orientation or position relationship shown, the X-axis represents "horizontal", the Y-axis represents "longitudinal", and the Z-axis represents "vertical".

[0033] In the description of this application, if the word "several" is mentioned, it means one or more; if the word "multiple" is mentioned, it means more than two; if the word "greater than," "less than," or "exceeds," it should be understood as excluding the number itself; if the word "above," "below," or "within" is mentioned, it should be understood as including the number itself. If the word "first" or "second" is mentioned, it should be understood as distinguishing technical features, and should not be understood as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0034] In addition, unless otherwise defined, the technical terms and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art. The terms used in this application are only for describing specific embodiments and are not intended to limit this application. It should be understood that when used in this specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0035] Example: Figure 1-8 As shown, a packaging bag anti-breakage test device includes a base 1, on which are assembled a counting component, a driving component, and a clamping component 4 for clamping the edge of the packaging bag. The clamping components 4 are arranged in multiple groups at intervals, and a test space 401 is formed between the clamping components 4. At least one group of clamping components 4 is slidably assembled with the base 1 and moves back and forth toward another group of clamping components 4. The driving component is used to push the clamping components 4 back and forth to simulate the process of the packaging bag being compressed, squeezed, deformed, and decompressed and restored during packaging, transportation, and handling, so that the test results are closer to actual usage. The counting component is used to record the number of times the clamping component 4 moves back and forth.

[0036] The counting component accurately records the number of times the packaging bag is compressed in the simulated test, and the packaging bag's anti-breakage performance is quantified. By adopting existing test conditions, it is convenient to compare the differences in anti-breakage performance between different packaging bags, provide reliable data support, and ensure the uniformity and comparability of test results. Secondly, the automated device can perform tests continuously, which improves detection efficiency and reduces uneven force and counting errors caused by manual operation.

[0037] It is worth mentioning that the cylinder or motor 301 is collectively referred to as a drive assembly, which is a common name used by those skilled in the art.

[0038] Since packaging bags are usually heat-sealed on their two opposite sides to complete the sealing process of the packaging bags, both ends of the packaging have flat pressing parts. During the folding and bursting test of the packaging bags, the tension and compression tests are performed by clamping the pressing parts of the packaging, which is in line with the actual use environment of the packaging bags. Because when the other two sides are clamped, there is no heat-sealed pressing part, which will squeeze the space inside the packaging bag, increasing the risk of packaging bag damage, thereby reducing the number of folding and bursting times of the packaging bag, making the test number cannot objectively reflect the actual performance of the packaging bag. During the test, the clamping component 4 should be clamped at the two opposite pressing parts of the packaging bag. Therefore, in terms of the specific structural setting of the clamping assembly 4, two groups of clamping assemblies 4 are provided, and the two groups of clamping assemblies 4 are arranged at intervals along the longitudinal direction of the base 1. The clamping assembly 4 includes a slider 402 and a clamping block 403. The slider 402 is slidably assembled with the base 1, and the clamping block 403 is slidably assembled with the slider 402 and is used to clamp the pressing part of the packaging bag. The clamping assembly 4 clamps the two ends of the packaging bag and moves back and forth toward and away from each other, which more accurately simulates the stress conditions of the packaging bag in actual use, thereby obtaining more reliable anti-fracture test results, reducing test errors caused by improper clamping methods, and ensuring the objectivity and validity of the test data.

[0039] In order to improve the sliding accuracy of the clamping assembly 4, this embodiment also includes two sets of guide rods 101. The base 1 is arranged in a U shape. The two ends of the guide rods 101 are respectively connected to the two longitudinal side walls of the base 1. The two sets of guide rods 101 are arranged in parallel and spaced apart along the transverse direction of the base 1. The slider 402 is provided with two sets of guide holes for sliding assembly with the guide rods 101. The setting of the guide rods 101 ensures that the slider 402 always maintains linear motion during the sliding process, that is, moves along the axis of the guide rods 101, reducing lateral deviation and improving overall sliding stability. Secondly, because the guide rods 101 provide a precise motion path for the clamping assembly 4, the motion trajectory of the slider 402 is consistent during each test, thereby enhancing the repeatability of the test results.

[0040] Of course, in order to improve the smoothness and stability of the sliding of the slider 402 and the guide rod 101, this embodiment also includes a guide sleeve 404, which is connected to the inner wall of the guide hole. The inner wall of the guide sleeve 404 is slidably assembled with the guide rod 101, making the movement of the clamping assembly 4 smoother, reducing the downtime caused by jamming or offset, and improving the test efficiency.

[0041] In terms of the specific structure of the sliding assembly of the clamping block 403 and the slider 402, the clamping assembly 4 also includes a vertical adjustment screw 405. The longitudinal side wall of the slider 402 is provided with a sliding cavity 4021. The clamping block 403 slides in the inner wall of the sliding cavity 4021. The top wall of the slider 402 is provided with a first threaded hole connected to the sliding cavity 4021. The vertical adjustment screw 405 is threadedly connected to the inner wall of the first threaded hole. One end of the vertical adjustment screw 405 is rotatably connected to the top wall of the slider 402. By providing the vertical adjustment screw 405, the vertical position of the clamping block 403 is adjusted so that the clamping block 403 moves back and forth toward the bottom wall of the sliding cavity 4021. First, the vertical adjustment screw 405 is rotated. Adjust the screw 405, move the clamping block 403 against the bottom wall of the sliding cavity 4021, then place one end of the packaging bag between the bottom wall of the sliding cavity 4021 and the clamping block 403, and then rotate the vertical adjustment screw 405 so that the clamping block 403 presses the packaging bag against the bottom wall of the sliding cavity 4021. Secondly, the vertical adjustment screw 405 allows the operator to fine-tune the clamping degree of the clamping block 403 by rotating the screw, so as to accurately control the pressure applied to the packaging bag and ensure the accuracy of the test. Furthermore, through the vertical adjustment screw 405, the clamping block 403 can adapt to packaging bags of different thicknesses, thereby improving the versatility of the clamping assembly 4 and being suitable for a variety of packaging specifications.

[0042] Since one end of the vertical adjustment screw 405 is rotatably assembled with the top wall of the clamping block 403 and needs to drive the clamping block 403 to move vertically, an inverted T-shaped portion is provided at one end of the vertical adjustment screw 405, and a T-shaped groove is provided on the top wall of the clamping block 403. Through the assembly of the inverted T-shaped portion and the T-shaped groove, the vertical adjustment screw 405 and the clamping block 403 can be rotatably assembled and the clamping block 403 can be driven to move vertically at the same time.

[0043] In order to improve the vertical movement accuracy of the clamping block 403, the clamping assembly 4 also includes two sets of guide rods 406. The horizontal length of the clamping block 403 is adapted to the horizontal length of the inner wall of the sliding cavity 4021. Specifically, the horizontal length of the clamping block 403 is equal to the horizontal length of the inner wall of the sliding cavity 4021. One end of the guide rod 406 is connected to the top wall of the clamping block 403. The top wall of the slider 402 is provided with a guide hole connected to the sliding cavity 4021. The guide rod 406 is slidably assembled with the guide hole and part of the guide rod 406 is exposed at the top of the guide hole. Wall, two groups of guide rods 406 are arranged at intervals along the lateral direction of the clamping block 403. Specifically, the guide rods 406 are located on both sides of the vertical adjustment screw 405. By providing the guide rods 406, it is ensured that the clamping block 403 always maintains parallel and stable movement during vertical movement, reduces lateral deviation, improves the accuracy of movement, and makes the clamping block 403 more stable when clamping the packaging bag. At the same time, the lateral length of the clamping block 403 is equal to the lateral length of the inner wall of the sliding cavity 4021, which further improves the vertical movement accuracy of the clamping block 403.

[0044] In order to reduce the risk of the clamping block 403 damaging the packaging bag when the clamping block 403 presses the packaging bag, the clamping assembly 4 also includes a rubber pad 407. The rubber pad 407 is connected to the bottom wall of the clamping block 403. The rubber pad 407 has good elasticity and softness, and can provide a buffer when the clamping block 403 presses the packaging bag, reducing hard contact with the surface of the packaging bag, thereby reducing the risk of the packaging bag being scratched or damaged. Secondly, the rubber pad 407 can evenly distribute the pressure applied by the clamping block 403, avoiding local excessive pressure concentration, so that the pressure on the packaging bag during the clamping process is more uniform, which helps to protect the packaging contents from damage. Moreover, the rubber pad 407 usually has a high friction coefficient, which can increase the friction between the clamping block 403 and the packaging bag, preventing the packaging bag from sliding during the test, thereby improving the stability and accuracy of the test.

[0045] In order to adjust the longitudinal distance of the test space 401 to adapt to the testing of packaging bags of different lengths, this example also includes a longitudinal adjustment screw 102, which is connected to a slider 402 of a group of clamping assemblies 4. The longitudinal adjustment screw 102 is located between the two groups of guide rods 101. Specifically, the axis of the longitudinal adjustment screw 102 is arranged parallel to the axis of the guide rod 101, and a second threaded hole is provided on the longitudinal side wall of the base 1. The longitudinal adjustment screw 102 is threadedly connected to the inner wall of the second threaded hole. By providing the longitudinal adjustment screw 102, the longitudinal distance of the test space 401 can be adjusted to ensure that each packaging bag can be evaluated under the best test conditions, so that the test device can adapt to packaging bags of different lengths, improve the versatility and flexibility of the equipment, and enable the test device to quickly switch between different products.

[0046] In terms of the specific structure of the driving assembly that pushes the clamping assembly 4 to move back and forth, the driving assembly includes a motor 301, a rotating block 302, and a transmission rod 303. The motor 301 is arranged on a side away from the longitudinal adjustment screw 102. Specifically, the fixed end of the motor 301 is connected to the base 1, and the rotating end of the motor 301 is connected to one end of the rotating block 302. The two ends of the transmission rod 303 are respectively rotatably assembled with the other end of the rotating block 302 and the slider 402 of another group of clamping assemblies 4. The clamping assembly 4 is driven to move back and forth by the motor 301, which improves the degree of automation and efficiency of the test process and ensures the consistency and repeatability of the test.

[0047] It is worth noting that this embodiment is provided with two groups of clamping assemblies 4. One group of clamping assemblies 4 connected to the longitudinal adjustment screw 102 is stationary during the test, so it is named static clamping assembly 4, and the other group of clamping assemblies 4 is driven by a driving assembly, so it is named dynamic clamping assembly 4.

[0048] In order to improve the operational safety of the test device, this embodiment also includes a shell 5, which is assembled on the base 1 and is used to cover the motor 301. The side wall of the shell 5 is provided with an avoidance groove, which is used to avoid interference between the transmission rod 303 and the shell 5 when it moves. The bottom and top walls of the shell 5 are provided with observation windows, which are located directly above the rotating block 302. The observation window is covered by a cover. In case of abnormality, the cover can be opened to observe the rotation of the rotating block 302 through the observation window.

[0049] In terms of the specific structure of the eccentric connection between the transmission rod 303 and the rotating end of the motor 301, the driving assembly also includes an adjusting rod 304, a rotating block 302 is provided with a long groove 3021, the adjusting rod 304 is assembled with the inner wall of the long groove 3021, and part of the adjusting rod 304 is exposed on the side wall of the rotating block 302 and is rotatably assembled with one end of the transmission rod 303, the slider 402 of the dynamic clamping assembly 4 is connected to the bracket, and the other end of the transmission rod 303 is rotatably assembled with the bracket. The long groove 3021 is provided on the rotating block 302, which is convenient for adjusting the eccentric distance between the transmission rod 303 and the rotating end of the motor 301, thereby adjusting the dynamic The distance that the clamping component 4 moves back and forth toward the static clamping component 4 is adapted to the breakage test requirements of different packaging bags. Because food is packaged in the packaging bag, if the dynamic clamping component 4 adopts a fixed back and forth moving stroke, when the stroke is too long, there is a risk that the dynamic clamping component 4 will hit the food in the packaging bag when moving, thereby destroying the integrity of the packaging. It is worth noting that the adjusting rod 304 is provided with a thread, and two sets of nuts are arranged on both sides of the rotating block 302 to fix the adjusting rod 304 on the rotating block 302. When the position of the adjusting rod 304 needs to be adjusted, the nut is loosened, moved to the appropriate position, and then the nut is locked.

[0050] In terms of the specific structure of the counting component for counting the number of times the clamping component 4 moves back and forth, the counting component includes a display screen 201 and a sensor 202. The sensor 202 is assembled on the base 1 to detect the number of rotations of the rotating block 302. The display screen 201 is electrically connected to the sensor 202 to display the number of sensing times of the sensor 202. The sensor 202 is a magnetoelectric sensor or a micro switch, which is a conventional sensor used by those skilled in the art, as long as it can meet the needs of detecting the number of rotations of the rotating block 302.

[0051] In this embodiment, the processor 601, the start / stop button 602, and the speed regulator 603 are electrically connected to the processor 601 for inputting a speed adjustment signal of the motor 301, the processor 601 is electrically connected to the motor 301 for outputting a speed signal of the motor 301, the start / stop button 602 is electrically connected to the processor 601 for inputting a start / stop signal of the motor 301, the sensor 202 and the processor 601 are electrically connected for inputting a rotation number detection signal of the rotating block 302, and the processor 601 is electrically connected to the display screen 201 for outputting the rotation number. Of course, the display screen 201 can also be used to input a preset rotation number, so that the processor 601 controls the motor 301 to rotate a fixed number of times.

[0052] It is worth noting that the breakage detection device has two usage scenarios. The first is that the customer provides the test conditions, that is, how many times the bag can withstand pressure without breaking. During the test, the packaging bag is clamped between the clamping components 4. After the preset number of times is input, the equipment runs automatically. After the preset number of times is reached, the appearance of the packaging bag is observed to see if it is damaged, so as to determine whether it meets the requirements. The second is a limit test of the packaging bag, that is, to verify how much pressure the packaging bag can withstand without breaking. During the test, the packaging bag is clamped between the clamping components 4, the equipment runs automatically, and then the electronic device records the number of movements of the clamping components 4. In order to improve the detection accuracy, the appearance of the packaging bag can be observed every 1 time, every 10 times, and every 100 times. Of course, the frequency of observation depends on the accuracy of the test and the stage of the test. The later the test, the more frequent it needs to be. In order to facilitate observation, a moisture-proof bag can be placed in the packaging bag. The moisture-proof bag usually contains silica gel desiccant, which can absorb moisture in the package and keep the food dry. The moisture-proof bag contains a humidity indicator, which will change color under different humidity conditions. When the packaging bag leaks and external moisture enters the package, the humidity indicator will change color, thereby reminding the tester that the sealing of the packaging bag has been damaged.

[0053] In order to facilitate the observation of test results, this example also includes a camera and a buzzer. The camera is assembled with the base 1 through a bracket and is located directly above the detection space. The camera is electrically connected to the processor for inputting image information of the packaging bag and identifying whether the packaging bag is broken. The buzzer is electrically connected to the processor 601. When broken, the processor 601 controls the motor 301 to stop and controls the buzzer to sound. At this time, the number of times on the display is the limit number of times the packaging bag can be pulled and broken.

[0054] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A packaging bag anti-breakage test device, characterized by: It includes a base, on which are assembled a counting component, a driving component, and a clamping component for clamping the edge of the packaging bag. The clamping components are arranged in multiple groups at intervals, and a test space is formed between the clamping components. At least one group of the clamping components is slidably assembled with the base and moves back and forth toward another group of the clamping components. The driving component is used to push the clamping components to move back and forth, and the counting component is used to record the number of back and forth movements of the clamping components.

2. The packaging bag breakage resistance testing device according to claim 1, characterized in that: The clamping assembly is provided in two groups, and the two groups of clamping assemblies are arranged at intervals along the longitudinal direction of the base. The clamping assembly includes a slider and a clamping block. The slider is slidably assembled with the base, and the clamping block is slidably assembled with the slider and is used to clamp the packaging bag.

3. The packaging bag breakage resistance testing device according to claim 2, characterized in that: It also includes two groups of guide rods. The base is U-shaped, and the two ends of the guide rods are respectively connected to the two longitudinal side walls of the base. The two groups of guide rods are arranged in parallel and spaced apart along the horizontal direction of the base. The slider is provided with two groups of guide holes for sliding assembly with the guide rods.

4. The packaging bag breakage resistance testing device according to claim 2, characterized in that: The clamping assembly also includes a vertical adjustment screw, a sliding cavity is opened on the longitudinal side wall of the slider, the clamping block slides in the inner wall of the sliding cavity, and a first threaded hole connected to the sliding cavity is opened on the top wall of the slider. The vertical adjustment screw is threadedly connected to the inner wall of the first threaded hole, and one end of the vertical adjustment screw is rotatably connected to the top wall of the slider.

5. The packaging bag breakage resistance testing device according to claim 4, characterized in that: The clamping assembly also includes two groups of guide rods, which are arranged at intervals along the lateral direction of the clamping block. One end of the guide rod is connected to the top wall of the clamping block. The top wall of the slider is provided with a guide hole connected to the sliding cavity. The guide rod is slidably assembled with the guide hole, and part of the guide rod is exposed on the top wall of the guide hole.

6. A packaging bag breakage resistance testing device according to any one of claims 2 to 5, characterized in that: The clamping assembly further includes a rubber pad connected to the bottom wall of the clamping block.

7. The packaging bag breakage resistance testing device according to claim 3, characterized in that: It also includes a longitudinal adjustment screw, which is connected to a slider of one group of the clamping assemblies. The longitudinal adjustment screw is located between the two groups of guide rods. A second threaded hole is opened on the longitudinal side wall of the base, and the longitudinal adjustment screw is threadedly connected to the inner wall of the second threaded hole.

8. The packaging bag breakage resistance testing device according to claim 7, characterized in that: The driving assembly includes a motor, a rotating block and a transmission rod. The motor is arranged on a side away from the longitudinal adjustment screw. The rotating end of the motor is connected to one end of the rotating block. The two ends of the transmission rod are respectively rotatably assembled with the other end of the rotating block and the slider of another group of the clamping assembly.

9. The packaging bag breakage resistance testing device according to claim 8, characterized in that: The driving assembly also includes an adjusting rod, the rotating block is provided with a long groove, the adjusting rod is assembled with the inner wall of the long groove, and a portion of the adjusting rod is exposed on the side wall of the rotating block and is rotatably assembled with one end of the transmission rod.

10. A packaging bag breakage resistance testing device according to claim 8 or 9, characterized in that: The counting component includes a display screen and a sensor. The sensor is mounted on the base and is used to detect the number of rotations of the rotating block. The display screen is electrically connected to the sensor and is used to display the number of sensing times of the sensor.

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