High-efficiency tensile detection device for composite bag

Abstract

The invention provides a high-efficiency tensile detection device for a composite bag, which relates to the technical field of composite bag detection, and comprises an assembling mechanism for installing an adaptive number of cushion blocks according to use requirements, enabling the positions of the cushion blocks on clamping plates to play a role in fixing the composite bag, and arranging detachable cushion blocks, the device can simulate the stress area and the stress position of the composite bag when the composite bag is pulled according to detection requirements, greatly enables measurement data to better conform to actual use conditions, and solves the problems that in the whole tensile detection process, an existing detection device is only provided with a chuck of a single specification, so that the contact area of the chuck and the composite bag is constant, and the detection accuracy is poor. Therefore, when the complex stress condition possibly encountered by the compound bag in a real scene is simulated, the compound bag looks disrupted, and differential stress situations borne by the compound bag under different working conditions cannot be accurately reproduced by flexibly adjusting the sizes of the chucks; and the problem that the accurate mapping capability of the detection data to an actual application scene is greatly limited is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of composite bag detection, and particularly to an efficient tensile strength detection device for composite bags. Background Art

[0002] In the packaging field of modern commodities, composite bags are widely used due to their advantages such as good barrier properties, flexibility, and printing adaptability. Composite bags are usually composed of multiple thin film materials with different functions, such as plastic films, aluminum foils, papers, etc., to meet the requirements of different commodities for moisture-proof, freshness-preserving, light-proof, puncture-resistant packaging, etc. Common application scenarios of composite bags include food packaging, pharmaceutical packaging, chemical product packaging, etc.; in the production process of composite bags, the tensile strength, as a core performance index, is directly related to the reliability and safety of composite bags in subsequent handling, storage, transportation, and actual use. In view of this, after each batch and category of composite bags complete the production process, it is necessary to use a professional tensile strength detection device to rigorously detect the strength characteristics of samples to determine whether they actually meet the corresponding use standards and requirements.

[0003] However, there are some deficiencies in the design of current composite bag tensile strength detection devices: First, in the entire tensile strength detection process of existing detection devices, only a single specification of chuck is equipped, which makes the contact area between the chuck and the composite bag constant. In this way, when simulating the complex stress conditions that composite bags may encounter in real scenarios, it is unable to flexibly adjust the size of the chuck to accurately reproduce the different stress situations endured by composite bags under different working conditions, thereby greatly limiting the ability of detection data to accurately map to actual application scenarios; Second, there are obvious shortcomings in the function system of current tensile strength detection devices. Most of them can only measure the maximum stress coefficient of composite bags from the initial static state until the moment of being pulled apart. However, in actual application scenarios, composite bags often need to load a certain weight of items and move along with the movement of personnel or equipment. During this process, the composite bags are continuously stressed, and their durability and endurance performance are also crucial for ensuring the safety of the items inside the packaging. However, existing detection devices lack the ability to simulate such actual working conditions and cannot effectively evaluate the endurance performance of composite bags during dynamic use, resulting in a significant disconnection between the detection results and actual use requirements. Summary of the Invention

[0004] Aiming at the above problems, an object of the present application is to make up for these deficiencies. More specifically, it provides an efficient tensile strength detection device for composite bags, which can adjust the contact area between the chuck and the composite bag, so as to be more in line with the actual use scenario during detection, and can also simulate the endurance of composite bags when loading heavy objects and walking.

[0005] In the first aspect of the present disclosure, an efficient tensile strength detection device for composite bags is provided, specifically including: an assembly mechanism; the assembly mechanism includes a substrate and mounting grooves, the substrate is of a rectangular structure, and the mounting grooves are symmetrically opened on both sides of the substrate; a fixing component A is provided on the assembly mechanism, the mounting disc of the fixing component A is inserted into the assembly groove in the substrate, and the bottom rod inserted into the inner side of the mounting disc is inserted and matched with the limiting holes in the assembly groove; a top component is provided on the assembly mechanism, the frame of the top component is arranged at the upper end of the substrate, and the mounting rod outside the frame is inserted and fixed in the mounting groove; two independent lifting components are provided inside the top component, the lifting frames of the lifting components are arranged at both inner ends of the frame, and both sides of the lifting frame are slidably matched with the side grooves inside the frame, and the end of the connecting rod inside the lifting frame is inserted and fixed in the connecting groove at the bottom of the driving rod inside the frame; a fixing component B is provided on the lifting component, the fixing component B includes a movable part, an adjusting rod and positioning holes, the movable part is located below the lifting frame, and a rectangular groove is opened inside the movable part; the adjusting rods are symmetrically fixed at the upper end of the movable part, and the adjusting rods are inserted into the inside of the lifting frame; the positioning holes are equidistantly opened inside the adjusting rods, and the positioning holes are inserted and matched with the locking rods inside the lifting frame.

[0006] Preferably, the assembly mechanism includes: an assembly groove and limiting holes; the assembly groove is opened at the middle position inside the substrate; the limiting holes are symmetrically opened inside the assembly groove.

[0007] Preferably, the fixing component A includes: a mounting disc and a fixing plate; the mounting disc is of a rectangular structure, a double-headed lead screw is rotatably installed inside the mounting disc, and circular through holes are symmetrically opened at both ends of the mounting disc; the fixing plates are arranged on both sides of the upper end of the mounting disc.

[0008] Preferably, the fixing component A includes: movable grooves and movable plates; the movable grooves are opened at the inner ends of both sides of the mounting disc; the movable plates are slidably installed above the two groups of movable grooves, and each movable plate is threadedly connected with the double-headed lead screw inside the mounting disc.

[0009] Preferably, the fixing component A includes: bottom rods and backing plates; the bottom rods are arranged on both sides of the bottom of the fixing plate, and the bottom rods are inserted into the circular through holes inside the mounting disc; the backing plates are respectively installed at the outer ends of the fixing plate and the movable plate.

[0010] Preferably, the top component includes: a frame, side grooves and mounting rods; the frame is of an n-shaped structure; the side grooves are symmetrically opened on both sides of the frame; the mounting rods are arranged at the four corners of the bottom of the frame.

[0011] Preferably, the top component includes: a driving rod and a connecting groove; the driving rod is arranged at the upper end of the frame, and the telescopic rod at the lower end of the driving rod penetrates through the frame; the connecting grooves are symmetrically opened at the bottom of the telescopic rod at the lower end of the driving rod.

[0012] Preferably, the lifting assembly includes: a lifting frame and a locking rod; the lifting frame is of a T-shaped structure; the locking rod is horizontally inserted at the middle position of the lifting frame.

[0013] Preferably, the lifting assembly includes: an inner groove, an adjusting plate, a slider and a connecting rod; the inner groove is opened inside the lifting frame, and a screw rod is rotatably installed inside the inner groove; the adjusting plate is slidably installed in the inner groove, and the adjusting plate is threadedly connected with the screw rod in the inner groove; the slider is slidably installed at the lower end inside the inner groove, and the slider is slidably matched with the screw rod in the inner groove, and a spring is provided between the slider and the adjusting plate; the connecting rod is inserted inside the slider.

[0014] Preferably, the fixing assembly B includes: a clamping plate, mounting holes and cushion blocks; the clamping plate is movably installed inside the movable part through a screw rod; the mounting holes are equidistantly opened inside the clamping plate; the cushion blocks are equidistantly distributed at the outer end of the clamping plate, and the cylindrical structure outside the cushion block is inserted and matched with the mounting holes.

[0015] The present invention provides a high-efficiency tensile testing device for composite bags, which has the following beneficial effects: 1. By setting the fixing assembly B, the clamping plate is movably installed inside the movable part through a screw rod, mounting holes are equidistantly opened in the clamping plate, and the cushion blocks are inserted onto the clamping plate through the mounting holes. When clamping the composite bag, according to the usage requirements, an appropriate number of cushion blocks are installed, so that the positions of the clamping plate with cushion blocks can play a role in fixing the composite bag. By setting the detachable cushion blocks, the stress area and stress position of the composite bag when being pulled can be simulated according to the actual detection requirements, which can greatly make the measurement data more in line with the actual usage situation and provide a solid guarantee for accurately evaluating the performance of the composite bag.

[0016] 2. By setting the top assembly and the lifting assembly, a driving rod is arranged on the frame body, the lifting frame is slidably installed inside the frame body, the adjusting plate and the slider are sequentially movably arranged from top to bottom in the inner groove of the lifting frame, so that the adjusting plate is controlled by the screw rod in the inner groove, an elastic member is arranged between the adjusting plate and the slider, and the slider and the driving rod are fixed through a connecting rod. During use, the driving rod pushes up the slider through the connecting rod, and the slider lifts the lifting frame through the spring and the adjusting plate, so that the fixing assembly B at the lower end drives the composite bag to be tightened. By making the telescopic rod on the driving rod move up and down slightly, the scenario of bumps when holding the composite bag and moving can be simulated. The setting of the spring can maintain a stable and appropriate tension state throughout the process of pulling up the composite bag for testing, and restore the true stress condition of the composite bag during the process of carrying heavy objects and continuous movement to the greatest extent, providing accurate data support for in-depth exploration of the lasting performance of the composite bag.

[0017] 3. The present invention is provided with a lifting component and a fixing component B. An active part is arranged at the lower end of the lifting frame, so that the adjusting rod at the upper end of the active part is inserted into the lifting frame, and the locking rod in the lifting frame is inserted into the positioning hole in the adjusting rod, so that the active part is fixed on the lifting frame. When testing, two composite bags with different sizes are placed on both sides of the device, and their bottoms are fixed by the fixing component A. By adjusting the positioning hole into which the locking rod is inserted, the two active parts are installed at different horizontal heights, so that the tops of the composite bags with different sizes can be fixed. In this way, when detecting, by pulling the lifting frame with the driving rod, the tensile tests of the two composite bags with different sizes can be carried out simultaneously, effectively improving the tensile test efficiency of the composite bags and meeting the stringent requirements of modern industrial production for the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Those skilled in the art will have a better understanding of the present disclosure through the following drawings, and the advantages of the present disclosure will be more clearly demonstrated. The drawings described herein are only for the purpose of illustrating the selected embodiments and are not all possible implementations, and are not intended to limit the scope of the present disclosure.

[0019] In the drawings: Figure 1 A three-dimensional structural schematic diagram according to an embodiment of the present invention is shown.

[0020] Figure 2 A sectional structural schematic diagram according to an embodiment of the present invention is shown.

[0021] Figure 3 A connection structural schematic diagram of the top component and the lifting component according to an embodiment of the present invention is shown.

[0022] Figure 4 Shown is a schematic diagram of the enlarged structure of part A led out from Figure 3 according to an embodiment of the present invention.

[0023] Figure 5 A structural schematic diagram of the lifting component and the fixing component B according to an embodiment of the present invention is shown.

[0024] Figure 6 An exploded view according to an embodiment of the present invention is shown.

[0025] Figure 7 A connection structural schematic diagram of the assembly mechanism and the top component according to an embodiment of the present invention is shown.

[0026] Figure 8 A connection structural schematic diagram of the fixing component A and the assembly component according to an embodiment of the present invention is shown.

[0027] Figure 9Shows a partial cross-sectional structural schematic diagram of the fixing component B according to an embodiment of the present invention.

[0028] List of reference numerals 1. Assembly mechanism; 101. Substrate; 1011. Installation groove; 102. Assembly groove; 1021. Limiting hole; 2. Fixing component A; 201. Installation disk; 2011. Fixing plate; 202. Movable groove; 2021. Movable plate; 203. Bottom rod; 204. Pad; 3. Top component; 301. Frame; 3011. Side groove; 3012. Installation rod; 302. Driving rod; 3021. Connecting groove; 4. Lifting component; 401. Lifting frame; 4011. Locking rod; 402. Inner groove; 4021. Adjusting plate; 403. Slide block; 4031. Connecting rod; 5. Fixing component B; 501. Movable part; 5011. Adjusting rod; 5012. Positioning hole; 502. Clamping plate; 5021. Installation hole; 5022. Pad block. Detailed implementation manners

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0030] Embodiment 1: Please refer to Figures 1 to 9 as shown: The present invention provides a high-efficiency tensile detection device for composite bags, comprising: an assembly mechanism 1; the assembly mechanism 1 includes a substrate 101 and mounting grooves 1011, the substrate 101 is of a rectangular structure, and the mounting grooves 1011 are symmetrically arranged on both sides of the substrate 101; a fixing component A 2 is arranged on the assembly mechanism 1, the mounting disc 201 of the fixing component A 2 is inserted into the assembly groove 102 in the substrate 101, and the bottom rod 203 inserted into the inner side of the mounting disc 201 is inserted and matched with the limiting hole 1021 in the assembly groove 102; a top component 3 is arranged on the assembly mechanism 1, the frame body 301 of the top component 3 is arranged at the upper end of the substrate 101, and the mounting rod 3012 outside the frame body 301 is inserted and fixed with the mounting groove 1011; two independent lifting components 4 are arranged inside the top component 3, the lifting frames 401 of the lifting components 4 are arranged at both inner ends of the frame body 301, and both sides of the lifting frames 401 are slidably matched with the side grooves 3011 in the frame body 301, and the end of the connecting rod 4031 inside the lifting frame 401 is inserted and fixed with the connecting groove 3021 at the bottom of the driving rod 302 at the inner end of the frame body 301; a fixing component B 5 is arranged on the lifting component 4, the fixing component B 5 includes a movable part 501, an adjusting rod 5011 and a positioning hole 5012, the movable part 501 is located below the lifting frame 401, and a rectangular groove is opened inside the movable part 501; the adjusting rods 5011 are symmetrically fixed at the upper end of the movable part 501, and the adjusting rods 5011 are inserted into the inside of the lifting frame 401; the positioning holes 5012 are equidistantly arranged inside the adjusting rods 5011, and the positioning holes 5012 are inserted and matched with the locking rods 4011 in the lifting frame 401.

[0031] As the second embodiment of the present application, on the basis of the first embodiment, as Figure 7 and Figure 8 shown, the assembly mechanism 1 includes: an assembly groove 102 and a limiting hole 1021; the assembly groove 102 is opened at the middle position inside the substrate 101; the limiting holes 1021 are symmetrically opened inside the assembly groove 102.

[0032] In the present application, by setting the substrate 101, the fixing component A 2 can be installed inside the substrate 101; by setting the circular mounting groove 1011, the frame body 301 can be fixed on the substrate 101 by inserting and fixing the mounting rod 3012 with the mounting groove 1011; by setting the rectangular assembly groove 102, the mounting disc 201 can be fixed inside the substrate 101 through the assembly groove 102; by setting the circular limiting hole 1021, the mounting disc 201 can be limited in the assembly groove 102 by inserting the bottom rod 203 into the limiting hole 1021.

[0033] As the third embodiment of the present application, on the basis of the first embodiment, as Figure 8As shown in the figure, the fixed component A2 includes: a mounting plate 201 and a fixing plate 2011; the mounting plate 201 is of a rectangular structure, and a double-headed lead screw is rotatably installed inside the mounting plate 201, and circular through holes are symmetrically opened at both ends of the mounting plate 201; the fixing plate 2011 is provided on both sides of the upper end of the mounting plate 201; a movable slot 202 and a movable plate 2021; the movable slot 202 is opened at the inner ends of both sides of the mounting plate 201; the movable plate 2021 is slidably installed above the two groups of movable slots 202, and each movable plate 2021 is threadedly connected to the double-headed lead screw inside the mounting plate 201; a bottom rod 203 and a backing plate 204; the bottom rod 203 is provided on both sides of the bottom of the fixing plate 2011, and the bottom rod 203 is inserted into the circular through hole inside the mounting plate 201; the backing plates 204 are respectively installed at the outer ends of the fixing plate 2011 and the movable plate 2021.

[0034] In this application, by setting the rectangular mounting plate 201, the fixing plate 2011 and the movable plate 2021 for fixing the composite bag can be installed on the mounting plate 201; by setting the rectangular fixing plate 2011, it can be used to fix the bottom of the composite bag; by setting the rectangular movable slot 202, the movable plate 2021 can be movably installed on the mounting plate 201 through the movable slot 202; by setting the rectangular movable plate 2021, it can be used in cooperation with the fixing plate 2011 to fix the bottom of the composite bag; by setting the cylindrical bottom rod 203, by inserting the bottom rod 203 into the circular through hole inside the mounting plate 201, the fixing plate 2011 can be fixed on the mounting plate 201, and by inserting the bottom rod 203 into the limiting hole 1021, the mounting plate 201 can be fixed inside the substrate 101; by setting the backing plate 204, when the movable plate 2021 and the fixing plate 2011 clamp the composite bag, the backing plate 204 can be used to directly contact the composite bag instead of the movable plate 2021 and the fixing plate 2011.

[0035] As the 4th embodiment of this application, on the basis of the first embodiment, as Figure 7 shown in the figure, the top component 3 includes: a frame body 301, side slots 3011 and mounting rods 3012; the frame body 301 is of an n-shaped structure; the side slots 3011 are symmetrically opened on both sides of the frame body 301; the mounting rods 3012 are provided at the four corner positions of the bottom of the frame body 301; a driving rod 302 and connecting slots 3021; the driving rod 302 is provided at the upper end of the frame body 301, and the telescopic rod at the lower end of the driving rod 302 penetrates through the frame body 301; the connecting slots 3021 are symmetrically opened at the bottom of the telescopic rod at the lower end of the driving rod 302.

[0036] In this application, by providing a frame body 301, a lifting frame 401 can be slidably installed inside the frame body 301; by providing a rectangular side groove 3011, the lifting frame 401 can be slidably installed into the frame body 301 through the side groove 3011; by providing a cylindrical mounting rod 3012, the frame body 301 can be fixed on the substrate 101 by inserting and fixing the mounting rod 3012 into the mounting groove 1011; by providing a driving rod 302 with a dynamometer built therein, the telescopic rod inside the driving rod 302 can be controlled electrically to drive the lifting frame 401 to perform a tensile test on the composite bag; by providing a circular connection groove 3021, the telescopic rod can drive the slider 403 to move by inserting and mating the connection groove 3021 with the connecting rod 4031.

[0037] As the 5th embodiment of this application, on the basis of the first embodiment, as Figure 5 shown, the lifting assembly 4 includes: a lifting frame 401 and a locking rod 4011; the lifting frame 401 is of a T-shaped structure; the locking rod 4011 is horizontally inserted at the middle position of the lifting frame 401; an inner groove 402, an adjusting plate 4021, a slider 403 and a connecting rod 4031; the inner groove 402 is opened inside the lifting frame 401, and a screw rod is rotatably installed inside the inner groove 402; the adjusting plate 4021 is slidably installed in the inner groove 402, and the adjusting plate 4021 is threadedly connected to the screw rod in the inner groove 402; the slider 403 is slidably installed at the lower end inside the inner groove 402, and the slider 403 is slidably matched with the screw rod in the inner groove 402, and a spring is provided between the slider 403 and the adjusting plate 4021; the connecting rod 4031 is inserted inside the slider 403.

[0038] In this application, by providing a lifting frame 401, a movable member 501 can be movably installed on the lifting frame 401; by providing a locking rod 4011, the movable member 501 can be fixed on the lifting frame 401 by inserting the locking rod 4011 into the positioning hole 5012; by providing a rectangular inner groove 402, the slider 403 can be movably installed in the inner groove 402; by providing a rectangular adjusting plate 4021, the compression degree of the spring between the slider 403 and the adjusting plate 4021 can be adjusted by moving the adjusting plate 4021; by providing a rectangular slider 403, the lifting frame 401 can be movably connected to the frame body 301 through the slider 403; by providing a connecting rod 4031, the slider 403 can be fixedly connected to the telescopic rod on the driving rod 302 by inserting the connecting rod 4031 through the slider 403 into the connection groove 3021.

[0039] As the 6th embodiment of this application, on the basis of the first embodiment, as Figure 9As shown in the figure, the fixed component B5 includes: a clamping plate 502, mounting holes 5021, and cushion blocks 5022; the clamping plate 502 is movably installed inside the movable part 501 through a screw; the mounting holes 5021 are equidistantly arranged inside the clamping plate 502; the cushion blocks 5022 are equidistantly distributed at the outer end of the clamping plate 502, and the cylindrical structure outside the cushion blocks 5022 is inserted and matched with the mounting holes 5021.

[0040] In this application, by setting the movable part 501, the clamping plate 502 can be movably installed inside the movable part 501; by setting the adjusting rod 5011, the movable part 501 can be movably installed at the lower end of the lifting frame 401 through the adjusting rod 5011; by setting the circular positioning holes 5012, by inserting the locking rod 4011 into the positioning holes 5012 at different positions, the fixed height of the movable part 501 on the lifting frame 401 can be adjusted; by setting the rectangular clamping plate 502, by moving the clamping plate 502, the upper end of the composite bag can be fixed inside the movable part 501; by setting the circular mounting holes 5021, the cushion blocks 5022 can be inserted onto the clamping plate 502 through the mounting holes 5021; by setting the cushion blocks 5022, by installing the cushion blocks 5022 on the clamping plate 502, the contact area between the clamping plate 502 and the composite bag can be adjusted, and the direct contact between the clamping plate 502 and the composite bag can be replaced.

[0041] The specific usage mode and function of this embodiment: In the present invention, as Figures 1 to 9As shown in the figure, an installation disk 201 is inserted inside a substrate 101, and a fixing plate 2011 is inserted on the installation disk 201. The bottom rod 203 on the fixing plate 2011 penetrates through the installation disk 201 and is inserted into a limiting hole 1021. An active plate 2021 is arranged on an active slot 202 inside the installation disk 201. Two composite bags of different sizes are placed on the installation disk 201. The active plate 2021 is moved, and in cooperation with the fixing plate 2011, the bottom of the composite bags is effectively clamped. A frame body 301 is inserted at the upper end of the substrate 101. Lifting frames 401 are movably inserted on both sides of the frame body 301. An adjusting plate 4021 and a slider 403 are movably installed in an inner slot 402 inside the lifting frame 401. Then the adjusting plate 4021 is moved, and the slider 403 is tightened in the inner slot 402 so that the slider 403 cannot slide in the inner slot 402. A connecting rod 4031 penetrates through the slider 403 and is inserted into a connecting slot 3021 inside a telescopic rod at the lower end of a driving rod 302, so that the slider 403 is fixed to the telescopic rod on the driving rod 302. An active member 501 is slidably arranged at the lower end of each lifting frame 401. According to the sizes of the composite bags on both sides, the height of each active member 501 below the lifting frame 401 is adjusted. Then a locking rod 4011 penetrates through a positioning hole 5012 on an adjusting rod 5011, so that the active member 501 is fixed on the lifting frame 401. A clamping plate 502 controlled by a screw rod is arranged inside the active member 501. A corresponding number of cushion blocks 5022 are inserted onto the clamping plate 502 through an installation hole 5021. The top of the composite bag is inserted into the inner end of the active member 501, so that the clamping plate 502 drives the cushion blocks 5022 to move and the composite bag is tightened inside the active member 501. After fixing both sides of the composite bag, the driving rod 302 is started, and the telescopic rod at its bottom drives the entire lifting frame 401 to move upward through the connecting rod 4031. During the simultaneous upward movement of the two lifting frames 401, each active member 501 tightens the composite bag fixed below. By continuously contracting the telescopic rod inside the driving rod 302, the maximum force received by the composite bags on both sides when they break or deform can be measured, thus completing the tensile test on the two composite bags.

[0042] In this article, the following points need to be noted: 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure. Other structures can refer to the general design.

[0043] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0044] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A composite bag high-efficiency tensile testing device, comprising: An assembly mechanism (1); the assembly mechanism (1) comprises a base plate (101) and a mounting groove (1011); the base plate (101) is a rectangular structure; the mounting groove (1011) is symmetrically arranged on both sides of the base plate (101); the assembly mechanism (1) is characterized in that a fixing component A (2) is provided on the assembly mechanism (1); a mounting plate (201) of the fixing component A (2) is plugged into the assembly groove (102) in the base plate (101), and a bottom plate (201) is plugged into the bottom plate (201) on the inner side of the fixing component A (2). The rod (203) is plugged into and matched with the limiting hole (1021) in the assembly groove (102); the assembly mechanism (1) is provided with a top component (3), the frame (301) of the top component (3) is arranged at the upper end of the base plate (101), and the mounting rod (3012) outside the frame (301) is plugged into and fixed with the mounting groove (1011); the top component (3) is provided with two sets of independent lifting components (4), and the lifting frame (401) of the lifting component (4) is arranged on the frame (3 01), and the two sides of the lifting frame (401) are slidably matched with the side grooves (3011) in the frame body (301), and the end of the inner connecting rod (4031) of the lifting frame (401) is plugged and fixed with the connecting groove (3021) at the bottom of the inner end driving rod (302) of the frame body (301); the lifting component (4) is provided with a fixing component B (5), and the fixing component B (5) includes a movable part (501), an adjusting rod (5011) and a positioning hole (501 2), the movable part (501) is located below the lifting frame (401), and a rectangular groove is provided inside the movable part (501); the adjusting rod (5011) is symmetrically fixed to the upper end of the movable part (501), and the adjusting rod (5011) is plugged into the inside of the lifting frame (401); the positioning holes (5012) are equidistantly provided inside the adjusting rod (5011), and the positioning holes (5012) are plugged into and matched with the locking rod (4011) in the lifting frame (401).

2. The high-efficiency tensile testing device for composite bags according to claim 1 is characterized in that: The assembly mechanism (1) comprises: an assembly groove (102) and a limiting hole (1021); the assembly groove (102) is arranged at a middle position inside the base plate (101); and the limiting hole (1021) is symmetrically arranged inside the assembly groove (102).

3. The high-efficiency tensile testing device for composite bags according to claim 1 is characterized in that: The fixing assembly A (2) comprises: a mounting disk (201) and a fixing plate (2011); the mounting disk (201) is a rectangular structure, a double-headed lead screw is rotatably mounted inside the mounting disk (201), and circular through holes are symmetrically provided at both ends of the mounting disk (201); the fixing plate (2011) is arranged on both sides of the upper end of the mounting disk (201).

4. The high-efficiency tensile testing device for composite bags according to claim 3 is characterized by: The fixing assembly A (2) comprises: a movable groove (202) and a movable plate (2021); the movable groove (202) is formed at the inner ends of both sides of the mounting plate (201); the movable plate (2021) is slidably mounted above two groups of movable grooves (202), and each group of movable plates (2021) is threadedly connected to a double-headed lead screw in the mounting plate (201).

5. The high-efficiency tensile testing device for composite bags according to claim 4, characterized in that: The fixing assembly A (2) comprises: a bottom rod (203) and a pad (204); the bottom rod (203) is arranged on both sides of the bottom of the fixing plate (2011), and the bottom rod (203) is plugged into a circular through hole in the mounting plate (201); the pad (204) is respectively mounted on the outer ends of the fixing plate (2011) and the movable plate (2021).

6. The high-efficiency tensile testing device for composite bags according to claim 1, characterized in that: The top component (3) comprises: a frame body (301), a side groove (3011) and a mounting rod (3012); the frame body (301) is an n-shaped structure; the side grooves (3011) are symmetrically arranged on both sides of the frame body (301); and the mounting rod (3012) is arranged at the four corners of the bottom of the frame body (301).

7. The high-efficiency tensile testing device for composite bags according to claim 6, characterized in that: The top assembly (3) comprises: a driving rod (302) and a connecting groove (3021); the driving rod (302) is arranged at the upper end of the frame (301), and the telescopic rod at the lower end of the driving rod (302) penetrates the frame (301); the connecting groove (3021) is symmetrically arranged at the bottom of the telescopic rod at the lower end of the driving rod (302).

8. The high-efficiency tensile testing device for composite bags according to claim 1 is characterized by: The lifting assembly (4) comprises: a lifting frame (401) and a locking rod (4011); the lifting frame (401) is a T-shaped structure; and the locking rod (4011) is laterally inserted in the middle of the lifting frame (401).

9. The high-efficiency tensile testing device for composite bags according to claim 8, characterized in that: The lifting assembly (4) comprises: an inner groove (402), an adjustment plate (4021), a slider (403) and a connecting rod (4031); the inner groove (402) is arranged inside the lifting frame (401), and a screw is rotatably installed inside the inner groove (402); the adjustment plate (4021) is slidably installed in the inner groove (402), and the adjustment plate (4021) is threadedly connected to the screw in the inner groove (402); the slider (403) is slidably installed at the lower end inside the inner groove (402), and the slider (403) is slidably matched with the screw in the inner groove (402), and a spring is provided between the slider (403) and the adjustment plate (4021); and the connecting rod (4031) is inserted into the slider (403).

10. The high-efficiency tensile testing device for composite bags according to claim 1, characterized in that: The fixing assembly B (5) comprises: a clamping plate (502), a mounting hole (5021) and a cushion block (5022); the clamping plate (502) is movably mounted inside the movable part (501) via a screw; the mounting holes (5021) are equidistantly arranged inside the clamping plate (502); the cushion blocks (5022) are equidistantly distributed at the outer end of the clamping plate (502), and the cylindrical structure outside the cushion blocks (5022) is plugged into and matched with the mounting holes (5021).

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