A strength testing device for chemical fiber paper tubes

Abstract

This utility model relates to the field of paper tube testing technology and discloses a chemical fiber paper tube strength testing device, including a base plate. A testing mechanism is provided on the top of the base plate, and a placement platform is fixedly connected to the top of the testing mechanism. A fixing mechanism is provided on the top of the placement platform, and a pushing mechanism is provided on the top of the base plate. The fixing mechanism includes a connecting platform, the bottom of which is located on the top of the placement platform. Connecting frames are fixedly connected to the outer sides of the connecting rod, and eccentric wheels are rotatably connected inside the two connecting frames. In this utility model, the sliding block slides flexibly in the sliding groove and works in coordination with the mating block, ensuring adaptability and fixing stability for paper tubes of different sizes, thereby expanding the testing range. The ingenious installation of the connecting platform allows the device to test multiple paper tubes simultaneously, reducing the time cost required for testing a single paper tube.

Description

Technical Field

[0001] This utility model relates to the field of paper tube testing technology, and in particular to a strength testing device for chemical fiber paper tubes. Background Technology

[0002] The chemical fiber paper tube strength testing device is a specialized device for testing the strength of chemical fiber paper tubes. It can simulate various external forces encountered by chemical fiber paper tubes during actual use, thereby evaluating their strength indicators. It is widely used in paper tube manufacturing enterprises, quality inspection agencies and other departments, and is an important tool to ensure the quality of chemical fiber paper tubes.

[0003] A search revealed Chinese Patent Publication No. CN217845098U, which discloses a high-strength chemical fiber paper tube roundness detection device. The device includes a detection platform, with a standing side plate fixedly installed at the edge of the upper surface of the platform. A guide crossbar is fixedly installed on the surface of the standing side plate, and a connecting seat is fixedly installed at one end of the guide crossbar. An adjusting screw is provided on one side surface of the standing side plate. This high-strength chemical fiber paper tube roundness detection device, through a designed push-out device, allows for the placement of a receiving box at one end of the detection platform after detection. Activating an electric push rod drives a horizontal push plate and a standing push plate on the side of the connecting round plate to push the chemical fiber paper tube from one end. This pushes the paper tube onto a V-shaped support plate until it falls into the receiving box, eliminating the tedious manual removal of the paper tube and achieving automatic feeding. This also facilitates the batch detection of chemical fiber paper tubes.

[0004] In practical use, the above-mentioned device uses an electric push rod to drive the horizontal push plate and the vertical push plate on the side of the connecting circular plate to push the chemical fiber paper tube from one end. This pushes the chemical fiber paper tube onto the V-shaped support plate until it falls into the receiving box, eliminating the tedious procedure of manually removing the chemical fiber paper tube. However, in use, only individual paper tubes can be tested one by one. This method of testing one by one is not only time-consuming, but also inefficient in a large-scale production environment, resulting in low production efficiency, failing to fully utilize the potential of the testing equipment, and increasing the unit testing cost. Therefore, a chemical fiber paper tube strength testing device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a chemical fiber paper tube strength testing device, which aims to improve the problem that some existing devices cannot test and fix multiple paper tubes at the same time.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A strength testing device for chemical fiber paper tubes includes a base plate, a testing mechanism is provided on the top of the base plate, a placement platform is fixedly connected to the top of the testing mechanism, a fixing mechanism is provided on the top of the placement platform, and a pushing mechanism is provided on the top of the base plate. The fixing mechanism includes a connecting platform, the bottom of which is located at the top of the placement platform. A sliding assembly is slidably connected to the top of the connecting platform, and a placement plate is fixedly connected to the top of the sliding assembly. The placement plate has multiple sliding grooves inside, and sliding blocks are slidably connected inside the multiple sliding grooves. A connecting rod is fixedly connected inside the multiple sliding blocks. Connecting frames are fixedly connected to the outer sides of the connecting rods. Eccentric wheels are rotatably connected inside two of the connecting frames. Multiple mating blocks are fixedly connected to the outer side of the placement plate, and the placement assembly is fixedly connected to the bottom of the connecting platform.

[0007] The above technical solution achieves stable fixing of paper tubes of different sizes by cooperating with the sliding block in the fixing mechanism and the sliding groove on the placement plate, ensuring the stability of the paper tube position during the inspection process. The mating block on the placement plate further enhances the fixing effect of the paper tube, preventing it from shifting during inspection, thereby improving the accuracy of the inspection. In addition, the linkage design of the eccentric wheel and connecting rod allows the device to inspect multiple paper tubes simultaneously, significantly improving inspection efficiency and reducing the time cost of inspecting a single paper tube.

[0008] As a further description of the above technical solution: The sliding assembly includes a slider, the top of which is fixedly connected to the bottom of the placement plate, and a groove is provided inside the connecting platform, with the outside of the slider slidably connected to the inside of the groove.

[0009] The above technical solution provides a smooth sliding space for the placement plate by allowing the slider in the sliding assembly to slide within the groove, ensuring that the placement plate can be firmly fixed on the connecting platform, thereby improving the stability and reliability of the entire device. The slider is fixedly connected to the bottom of the placement plate, allowing the placement plate to move as the slider slides within the groove, providing flexible operating space for fixing and inspecting the paper tube.

[0010] As a further description of the above technical solution: The placement assembly includes a placement column, the top of which is fixedly connected to the bottom of the connecting platform, a limiting plate is fixedly connected to the outside of the placement column, and the outside of the placement column is slidably connected to the inside of the placement platform.

[0011] The above technical solution provides stable support for the connecting platform by fixing the placement column to its bottom, ensuring the stability of the entire fixing mechanism. The limiting plate outside the placement column locks into place at the top of the platform after the placement column slides into it, providing good limiting capability and preventing displacement of the connecting platform during testing.

[0012] As a further description of the above technical solution: The testing mechanism includes a bearing column, which is externally fixedly connected to the top of the substrate, and a force-bearing plate is fixedly connected to the top of the bearing column.

[0013] The aforementioned technical solution provides a robust support foundation for the entire testing device through the robust design of the supporting column, ensuring the reliability of the testing process. A load-bearing plate is fixedly connected to the top of the supporting column, further enhancing the stability of the testing mechanism.

[0014] As a further description of the above technical solution: The bottom of the placement platform is fixedly connected to the top of the force-bearing plate, and cylinder frames are fixedly connected to the outer two sides of the force-bearing plate. A pressing plate is fixedly connected to the bottom of the cylinder frames.

[0015] The above technical solution utilizes the cylinder frame's telescopic capability to simulate the external forces encountered by the chemical fiber paper tube during actual use, thereby testing the paper tube's strength. A pressing plate is fixedly connected to the bottom of the cylinder frame, directly contacting the chemical fiber paper tube and evenly transmitting the force generated by the cylinder frame onto the paper tube.

[0016] As a further description of the above technical solution: The jacking mechanism includes a fixed block, the bottom of which is fixedly connected to the top of the base plate, a support rod fixedly connected to the top of the fixed block, a pulling column slidably connected inside the support rod, and a limit ring slidably connected outside the pulling column.

[0017] The above technical solution ensures the reliability of the testing process by fixing the rod to the top of the substrate. The support rod has an internal sliding connection to a pull column, and the pull column has an external sliding connection to a limit ring. This design allows the pull column to slide smoothly within the support rod, while the limit ring restricts the sliding range of the pull column.

[0018] As a further description of the above technical solution: The outer side of the limiting ring is on the outer side of the support rod. The outer side of the pulling column, i.e. the outer side near the limiting ring, is fixedly connected to a connecting column. The outer side of the connecting column is slidably connected to a force-bearing ring. The outer side of the force-bearing ring is rotatably connected to multiple movable rods. The outer side of the connecting column, i.e. the outer side away from the limiting ring, is fixedly connected to a fixing ring.

[0019] The above technical solution achieves the following: limiting the movement range of the pulling column via a limiting ring ensures the stability and reliability of the jacking mechanism during operation. The linkage design between the connecting column and the force-bearing ring allows for even transmission of jacking force, enhancing balance during the jacking process. The rotating design of the movable rod enables the jacking mechanism to flexibly adapt to paper tubes of different sizes, while the fixed ring provides excellent limiting capability.

[0020] As a further description of the above technical solution: A movable column is rotatably connected to the outside of the plurality of movable rods, i.e., the outer side away from the limiting ring. A rotating rod is fixedly connected to the outside of the plurality of movable rods, i.e., the outer side away from the limiting ring. The outer side of the rotating rod is rotatably connected to the inside of the fixed ring. A connecting block is fixedly connected to the outside of the plurality of movable rods. An arc plate is fixedly connected to the outside of the plurality of connecting blocks.

[0021] Through the above technical solution, the cooperation of the movable column and the connecting block enables the arc plate to accurately push the inside of the paper tube, helping to restore the collapsed parts of the paper tube, thereby avoiding any impact during the inspection process and improving the accuracy of the inspection.

[0022] This utility model has the following beneficial effects: 1. In this utility model, the sliding block slides flexibly in the sliding groove and works in coordination with the mating block to ensure adaptability and stability of paper tubes of different sizes, thereby expanding the detection range. The ingenious installation of the connecting platform enables the device to test multiple paper tubes at the same time, significantly improving detection efficiency and reducing the time cost required for testing a single paper tube.

[0023] 2. In this invention, the sliding of the connecting column drives the fixed ring to move, which in turn causes the rotating rod to rotate, effectively jacking the collapsed area inside the paper tube, ensuring the integrity of the paper tube shape and avoiding errors in the detection process. In addition, the rotational transmission of the movable rod and the movable column allows the rotating rod to rotate smoothly outside the fixed ring, improving the flexibility and adaptability of the detection process. This design not only enhances the operational stability of the device but also improves the accuracy of the detection results, providing a strong guarantee for the quality control of paper tubes. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a chemical fiber paper tube strength testing device proposed in this utility model; Figure 2 This is a schematic diagram of the connection platform of the chemical fiber paper tube strength testing device proposed in this utility model; Figure 3 This is a schematic diagram of the connecting frame of a chemical fiber paper tube strength testing device proposed in this utility model; Figure 4 This is a schematic diagram of the placement column of a chemical fiber paper tube strength testing device proposed in this utility model; Figure 5 This is a schematic diagram of the structure of the movable column of a chemical fiber paper tube strength testing device proposed in this utility model.

[0025] Legend: 1. Base plate; 2. Detection mechanism; 21. Bearing column; 22. Force plate; 23. Cylinder frame; 24. Pressing plate; 3. Placement platform; 4. Fixing mechanism; 41. Connecting platform; 42. Placement plate; 43. Sliding groove; 44. Sliding block; 45. Connecting rod; 46. Connecting frame; 47. Eccentric wheel; 48. Alignment block; 5. Sliding assembly; 501. Sliding groove; 502. Slider; 6. Placement assembly; 601. Placement column; 602. Limiting plate; 7. Pushing mechanism; 71. Fixing block; 72. Support rod; 73. Pulling column; 74. Limiting ring; 75. Force ring; 76. Connecting column; 77. Movable rod; 78. Rotating rod; 79. Fixing ring; 710. Connecting block; 711. Movable column; 712. Arc plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 2 to 4 An embodiment of this utility model is provided: a chemical fiber paper tube strength testing device, including a base plate 1, a testing mechanism 2 is provided on the top of the base plate 1, a placement platform 3 is fixedly connected to the top of the testing mechanism 2 to provide stable support for the testing process, a fixing mechanism 4 is provided on the top of the placement platform 3, and a pushing mechanism 7 is provided on the top of the base plate 1. The fixing mechanism 4 includes a connecting platform 41, designed to provide additional support. The bottom of the connecting platform 41 is at the top of the placement platform 3. A sliding assembly 5 is slidably connected to the top of the connecting platform 41. The sliding assembly 5 includes a slider 502, designed to provide good engagement capability. The top of the slider 502 is fixedly connected to the bottom of the placement plate 42. A groove 501 is provided inside the connecting platform 41, designed to provide good sliding space, allowing the slider 502 to slide smoothly within the groove 501. The outside of the slider 502 is slidably connected to the inside of the groove 501. The top of the sliding assembly 5 is fixedly connected to the placement plate 4. 2. Its design provides good support capacity. The placement plate 42 has multiple curved grooves inside, allowing the paper tube to be placed on top of the placement plate 42 without rolling. The placement plate 42 also has multiple sliding grooves 43 inside, providing good sliding space. The outer surface of the sliding grooves 43 is at the bottom of the curved grooves. Sliding blocks 44 are slidably connected inside the multiple sliding grooves 43, providing good sliding ability and allowing smooth sliding within the sliding grooves 43. During sliding, they can engage with one side of the paper tube. Connecting rods 45 are fixedly connected inside the multiple sliding blocks 44, providing good... The connecting rod 45 has good connection capability, and the outside of the connecting rod 45 passes through the interior of multiple sliding blocks 44, allowing them to slide together. Connecting brackets 46 are fixedly connected to the outer sides of the connecting rod 45, providing good connection and support capabilities. Eccentric wheels 47 are rotatably connected inside the two connecting brackets 46. Through the support provided by the connecting brackets 46, the convex surfaces of the eccentric wheels 47 will fit against the outer sides of the placement plate 42 when rotating, thus fixing the connecting rod 45 and the sliding blocks 44. Multiple mating blocks 48 are fixedly connected to one side of the placement plate 42, providing good limiting capability, allowing for the control of paper tubes. On the other side, a locking mechanism is used to prevent displacement during the testing process. The bottom of the connecting platform 41 is fixedly connected to a placement component 6, which includes a placement column 601. Its design provides good alignment capability, allowing the placement column 601 to drive the connecting platform 41 to slide and connect inside the placement platform 3. The top of the placement column 601 is fixedly connected to the bottom of the connecting platform 41. The outside of the placement column 601 is fixedly connected to a limiting plate 602. When the placement column 601 slides into the interior of the placement platform 3, the limiting plate 602 will lock onto the top of the placement platform 3, providing good limiting capability. The outside of the placement column 601 is slidably connected to the interior of the placement platform 3. Specifically, the connecting platform 41 provides additional support for the entire device, with its bottom fixed to the top of the placement platform 3. The design of the slider 502 ensures good engagement with the slide groove 501. Multiple curved grooves inside the placement plate 42 prevent the paper tube from rolling, while multiple sliding grooves 43 provide sliding space for the sliding block 44. The sliding block 44 slides within the sliding groove 43, engaging one side of the paper tube. The connecting rod 45 passes through multiple sliding blocks 44, allowing them to slide together. When the eccentric wheel 47 rotates, its convex surface fits against both sides of the outer side of the placement plate 42, fixing the connecting rod 45 and the sliding block 44. Multiple mating blocks 48 are also fixedly connected to one side of the outer side of the placement plate 42, engaging the other side of the paper tube to prevent displacement during the detection process. At the same time, the combination of the sliding block 44 and the mating block 48 allows for the detection of multiple paper tubes while simultaneously fixing paper tubes of different sizes, preventing displacement during pressing. The placement column 601 enables the connecting platform 41 to slide and connect inside the placement platform 3. After the placement column 601 slides into the interior of the placement platform 3, the limiting plate 602 is locked at the top of the placement platform 3 to provide limiting capability.

[0028] Reference Figure 1 and Figure 2 The testing mechanism 2 includes a support column 21, which is designed to provide good support. The support column 21 is externally fixedly connected to the top of the base plate 1. A force plate 22 is fixedly connected to the top of the support column 21, which is designed to provide good support, so that the placement platform 3 can be well supported. The bottom of the placement platform 3 is fixedly connected to the top of the force plate 22. Cylinder frames 23 are fixedly connected to the outer sides of the force plate 22. Through its extension and retraction capabilities, the external force on the chemical fiber paper tube during actual use is simulated, thereby testing its strength index. A pressing plate 24 is fixedly connected to the bottom of the cylinder frame 23, which directly contacts the chemical fiber paper tube and evenly transmits the pressure generated by the cylinder frame 23 to the chemical fiber paper tube, causing it to deform or change stress. Specifically, the supporting column 21, with its robust structure, provides the necessary support for the device, ensuring the stability of the entire testing mechanism 2. The force-bearing plate 22 is fixed to the top of the supporting column 21, providing support for the placement platform 3. The bottom of the placement platform 3 is fixedly connected to the top of the force-bearing plate 22, forming a stable support platform. The cylinder frame 23 is installed on both sides of the outer surface of the force-bearing plate 22, utilizing its telescopic capability to simulate the external forces encountered by the chemical fiber paper tube during actual use, thereby testing the strength of the paper tube. Subsequently, the pressing plate 24 directly contacts the chemical fiber paper tube, responsible for evenly transmitting the force generated by the cylinder frame 23 to the paper tube. This design ensures that the deformation or stress change of the paper tube under stress can be accurately measured, thereby evaluating its strength indicators. During the testing process, the telescopic movement of the cylinder frame 23 drives the pressing plate 24 to apply pressure to the paper tube, simulating the load conditions under actual use. In this way, the testing mechanism 2 can accurately measure the response of the paper tube under stress.

[0029] Reference Figure 1 and Figure 5The jacking mechanism 7 includes a fixed block 71, designed to provide good support. The bottom of the fixed block 71 is fixedly connected to the top of the substrate 1, and a support rod 72 is fixedly connected to the top of the fixed block 71. The support rod 72 is stably positioned on the top of the substrate 1 by the support of the fixed block 71. A pulling column 73 is slidably connected inside the support rod 72, designed to provide good pulling ability. A limit ring 74 is slidably connected to the outside of the pulling column 73 on one side of the support rod 72, designed to provide good limiting ability. The limiting ring 74 is located on the other side of the support rod 72, and the outer side of the limiting ring 74 is on the outer side of the support rod 72. A connecting column 76 is fixedly connected to the outer side of the pulling column 73, i.e., the side closest to the outer side of the limiting ring 74. Its design provides good sliding capability. A force-bearing ring 75 is slidably connected to the outer side of the connecting column 76. Pulling the pulling column 73 causes the connecting column 76 to slide. During sliding, the force-bearing ring 75 applies pressure to the limiting ring 74, causing the outer side of the limiting ring 74 to be locked onto the outer side of the support rod 72. Multiple movable rods 77 are rotatably connected, and their design provides good support. A fixed ring 79 is fixedly connected to the outer side of the connecting column 76, i.e., the side away from the limiting ring 74, and its design provides good limiting capability. Movable columns 711 are rotatably connected to the outer side of the multiple movable rods 77, i.e., the side away from the limiting ring 74, and their design provides good rotation capability. A rotating rod 78 is fixedly connected to the outer side of the multiple movable columns 711, i.e., the side away from the limiting ring 74. With the support of the fixed ring 79, the rotating rod 78 can rotate smoothly outside the fixed ring 79. The outer sides of the fixed ring 79 and the movable rods 77 are rotatably connected to the outer side of the movable columns 711. The outer side of the rotating rod 78 is rotatably connected to the inside of the fixed ring 79. A connecting block 710 is fixedly connected to the outer side of the multiple movable columns 711, and its design provides good support and connection capability. An arc plate 712 is fixedly connected to the outer side of the multiple connecting blocks 710, and its design can push the collapsed area inside the paper tube to reset it and prevent it from affecting the detection. Specifically, by pulling the column 73, it can slide inside the support rod 72, thereby driving the connecting column 76 to slide. When the connecting column 76 slides, the fixing ring 79 will move the rotating rod 78. Then, by the limiting ring 74 of the support rod 72, when the pulling column 73 pulls the connecting column 76, the force ring 75 will apply pressure to the limiting ring 74. Then, by the moving rod 77 and the rotating rod 78 rotating outside the force ring 75 and the rotating rod 78 respectively, the other side will rotate outside the base plate 1, so that it can be pushed outward. When it is pushed up, it can drive the connecting block 710 to move accordingly, so that the arc plate 712 will unfold outward, so that the arc plate 712 will press against the inside of different paper tubes.

[0030] Working Principle: First, the paper tube to be tested is placed on the placement plate 42. The placement plate 42 has multiple curved grooves to stabilize the position of the paper tube and prevent it from rolling during testing. Next, the slider 502 slides in the sliding groove 501 inside the connecting platform 41 and engages with the placement plate 42. The engagement of the slider 502 and the placement plate 42 ensures the stability of the paper tube during testing and allows for quick disassembly. Subsequently, multiple sliding blocks 44 move in the sliding grooves 43 inside the placement plate 42 and engage tightly with one side of the paper tube. These sliding blocks 44 are connected by a connecting rod 45, which passes through all the sliding blocks 44 to achieve synchronous sliding. The eccentric wheel 47 rotates under the support of the connecting frame 46, and its convex surface abuts against the outer sides of the placement plate 42, further stabilizing the position of the connecting rod 45 and the sliding blocks 44. The engaging block 48 on one side of the placement plate 42 engages the other side of the paper tube, enhancing the stability of the paper tube during testing and preventing displacement. The placement column 601 slides inside the placement platform 3, and the limiting plate 602 engages with the top of the placement platform 3 to ensure the stability of the entire fixing mechanism 4. Its design allows for the sliding of the sliding block 44 inside the sliding groove 43 and the engagement of the mating block 48, enabling the fixing of paper tubes of different sizes. At the same time, the installation of the connecting platform 41 allows for the simultaneous testing of multiple paper tubes. The supporting column 21 is fixed to the base plate 1 with its robust structure, and a force-bearing plate 22 is connected to its top. This force-bearing plate 22 not only provides support for the placement platform 3 but also ensures the stability of the entire testing mechanism 2. The cylinder frame 23, through its telescopic movement, simulates the external forces experienced by the synthetic fiber paper tube in actual use. The telescopic movement of the cylinder frame 23 further drives the pressing plate 24 at its bottom, which directly contacts the synthetic fiber paper tube, uniformly applying the force generated by the cylinder frame 23 onto the paper tube. This allows for the evaluation of the paper tube's strength indicators. Throughout the testing process, the telescopic movement of the cylinder frame 23 simulates the load encountered by the paper tube under actual use conditions, while the pressing plate 24 ensures that these forces are transmitted evenly and accurately to the paper tube. In this way, the testing mechanism 2 can accurately measure the paper tube's response under stress, ensuring the accuracy and reliability of the test results. Before inspecting the paper tube, it is placed outside the jacking mechanism 7. The fixing block 71 provides stable support for the jacking mechanism 7, and its bottom is fixed to the top of the base plate 1, ensuring the stability of the entire mechanism. The pulling column 73 slides inside the support rod 72. Its design allows it to move smoothly within the support rod 72, thereby driving the connecting column 76 to slide accordingly. The sliding of the connecting column 76 further causes the force ring 75 to apply pressure to the limiting ring 74. This pressure makes the limiting ring 74 tightly locked outside the support rod 72, ensuring the stability of the entire mechanism during operation. As the connecting column 76 slides, the fixing ring 79 moves accordingly, driving the rotating rod 78 to rotate. This rotation is transmitted through the movable rod 77 and the movable column 711, allowing the rotating rod 78 to rotate smoothly outside the fixing ring 79. This rotation, along with the movement of the connecting block 710, causes the arc plate 712 to unfold outward. The design of the arc plate 712 allows it to push and reposition areas that have collapsed inside the paper tube, thus preventing them from affecting the inspection process. This process not only ensures the shape integrity of the paper tube during inspection but also provides the conditions for accurate measurement of the paper tube's strength.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A strength testing device for chemical fiber paper tubes, comprising a substrate (1), characterized in that: The top of the substrate (1) is provided with a detection mechanism (2), the top of the detection mechanism (2) is fixedly connected with a placement platform (3), the top of the placement platform (3) is provided with a fixing mechanism (4), and the top of the substrate (1) is provided with a lifting mechanism (7). The fixing mechanism (4) includes a connecting platform (41), the bottom of which is at the top of the placement platform (3). A sliding assembly (5) is slidably connected to the top of the connecting platform (41). A placement plate (42) is fixedly connected to the top of the sliding assembly (5). Multiple sliding grooves (43) are provided inside the placement plate (42). Sliding blocks (44) are slidably connected inside the multiple sliding grooves (43). A connecting rod (45) is fixedly connected inside the multiple sliding blocks (44). Connecting frames (46) are fixedly connected to the outer sides of the connecting rod (45). An eccentric wheel (47) is rotatably connected inside the two connecting frames (46). Multiple mating blocks (48) are fixedly connected to the outer side of the placement plate (42). A placement assembly (6) is fixedly connected to the bottom of the connecting platform (41).

2. The chemical fiber paper tube strength testing device according to claim 1, characterized in that: The sliding assembly (5) includes a slider (502), the top of which is fixedly connected to the bottom of the placement plate (42), and a groove (501) is provided inside the connecting platform (41), and the outside of the slider (502) is slidably connected to the inside of the groove (501).

3. The chemical fiber paper tube strength testing device according to claim 1, characterized in that: The placement assembly (6) includes a placement column (601), the top of which is fixedly connected to the bottom of the connecting platform (41), a limiting plate (602) is fixedly connected to the outside of the placement column (601), and the outside of the placement column (601) is slidably connected to the inside of the placement platform (3).

4. The chemical fiber paper tube strength testing device according to claim 1, characterized in that: The detection mechanism (2) includes a bearing column (21), the bearing column (21) is externally fixedly connected to the top of the base plate (1), and a force plate (22) is fixedly connected to the top of the bearing column (21).

5. The chemical fiber paper tube strength testing device according to claim 4, characterized in that: The bottom of the placement platform (3) is fixedly connected to the top of the force plate (22), and cylinder brackets (23) are fixedly connected to the outer sides of the force plate (22). A pressing plate (24) is fixedly connected to the bottom of the cylinder brackets (23).

6. The chemical fiber paper tube strength testing device according to claim 1, characterized in that: The jacking mechanism (7) includes a fixed block (71), the bottom of which is fixedly connected to the top of the base plate (1), and a support rod (72) is fixedly connected to the top of the fixed block (71). A pulling column (73) is slidably connected inside the support rod (72), and a limit ring (74) is slidably connected to the outside of the pulling column (73).

7. The chemical fiber paper tube strength testing device according to claim 6, characterized in that: The outer side of the limiting ring (74) is on the outer side of the support rod (72). The outer side of the pulling column (73), that is, the outer side of the limiting ring (74), is fixedly connected to the connecting column (76). The outer side of the connecting column (76) is slidably connected to the force ring (75). The outer side of the force ring (75) is rotatably connected to multiple movable rods (77). The outer side of the connecting column (76), that is, the outer side away from the limiting ring (74), is fixedly connected to the fixing ring (79).

8. The chemical fiber paper tube strength testing device according to claim 7, characterized in that: A movable column (711) is rotatably connected to the outside of the plurality of movable rods (77), i.e., the side away from the limiting ring (74). A rotating rod (78) is fixedly connected to the outside of the plurality of movable rods (711), i.e., the side away from the limiting ring (74). The outside of the rotating rod (78) is rotatably connected to the inside of the fixed ring (79). A connecting block (710) is fixedly connected to the outside of the plurality of movable rods (711). An arc plate (712) is fixedly connected to the outside of the plurality of connecting blocks (710).

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