Chemical fiber paper tube hardness detection equipment

Abstract

The utility model relates to the technical field of hardness detection equipment, in particular to chemical fiber paper tube hardness detection equipment which comprises a hardness detector, a detection table is arranged on the hardness detector, a semi-arc groove is formed in the top of the detection table, a roller is arranged in the semi-arc groove, a rotating mechanism for driving a paper tube to rotate is arranged in the detection table, and the paper tube is arranged on the detection table. A pair of fixing plates is arranged at the top of the detection table, hydraulic cylinders are installed on the fixing plates, clamping plates are arranged at the telescopic ends of the hydraulic cylinders, and auxiliary clamping mechanisms are arranged on the clamping plates. According to the utility model, the paper tube can be driven to move through the rotating mechanism, the clamping plate and the auxiliary clamping mechanism and is matched with a hardness detector to carry out multi-point detection on different positions, so that the limitation of traditional fixed point detection is avoided, the hardness distribution of each area of the paper tube can be comprehensively evaluated, local defects can be effectively found, and the accuracy and reliability of detection data are improved.

Description

Technical Field

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

[0002] Chemical fiber paper tubes are cylindrical paper core tubes used for winding chemical fiber filaments, yarns, or films. They are usually made from kraft paper, recycled paper, or composite materials through a winding process. They are lightweight, low-cost, environmentally friendly, and recyclable. Their hardness, strength, and dimensional stability directly affect the forming quality of chemical fiber rolls and the efficiency of subsequent textile processing.

[0003] Existing hardness testing equipment, such as the hardness testing equipment disclosed in CN211013879U, uses a testing platform with thin sheet clamping and fine wire clamping devices to place the object to be tested and fix the object to be tested, which facilitates the testing of the test block. However, the testing platform can only test a fixed position of the paper tube and cannot comprehensively evaluate the hardness uniformity of different areas of the paper tube, resulting in incomplete test data and possibly masking local defects. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing testing platforms that can only test a fixed position on a paper tube, failing to comprehensively assess the uniformity of hardness in different areas of the paper tube, resulting in incomplete test data and potentially masking local defects. Therefore, this invention proposes a chemical fiber paper tube hardness testing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hardness testing device for chemical fiber paper tubes includes a hardness tester, a testing platform on the hardness tester, a semi-circular groove on the top of the testing platform, a roller inside the semi-circular groove, a rotating mechanism inside the testing platform to drive the paper tube to rotate, a pair of fixed plates on the top of the testing platform, a hydraulic cylinder mounted on the fixed plates, a clamping plate on the telescopic end of the hydraulic cylinder, and an auxiliary clamping mechanism on the clamping plate.

[0007] Preferably, the rotating mechanism includes a movable cavity, a transmission shaft, and a servo motor. The movable cavity is disposed in the testing table, the transmission shaft is rotatably disposed in the movable cavity, and the servo motor is fixedly disposed on the outside of the testing table.

[0008] Preferably, one end of the drive shaft passes through the outer wall of the testing platform and is fixedly connected to the output end of the servo motor, and the roller located on the middle side is coaxially arranged with the drive shaft.

[0009] Preferably, connecting blocks are provided on both sides of the fixing plate, a limiting rod is fixedly provided at one end of the connecting block opposite to the other, a limiting sleeve is provided on the outer side of the clamping plate, and the limiting sleeve is slidably disposed on the limiting rod.

[0010] Preferably, the auxiliary clamping mechanism includes a symmetrically distributed slide groove, slide column, spring, slider and small clamping plate. The slide groove is disposed on the clamping plate, the slide column is fixedly disposed in the slide groove, the spring is sleeved on the slide column, the slider is slidably disposed in the slide groove, and the small clamping plate is disposed on one end of the slider opposite to the slider.

[0011] Preferably, one end of the spring is fixedly connected to the slide groove, the other end of the spring is fixedly connected to the slider, and the small clamping plate is threadedly connected to the slider.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. When in use, this utility model can drive the paper tube to rotate through the rotating mechanism, and cooperate with the hardness tester to perform multi-point testing at different positions, avoiding the limitations of traditional fixed-point testing. It can comprehensively evaluate the hardness distribution of each area of ​​the paper tube, effectively detect local defects, and improve the accuracy and reliability of the test data.

[0014] 2. In use, this utility model employs a hydraulically driven clamping plate in conjunction with an auxiliary clamping mechanism, which can not only firmly fix the paper tube and prevent it from slipping during testing, but also adapt to paper tubes of different diameters through spring buffering and fine adjustment of the small clamping plate, reducing measurement errors caused by uneven clamping force and improving testing stability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a chemical fiber paper tube hardness testing device proposed in this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the clamping platform of a chemical fiber paper tube hardness testing device proposed in this utility model;

[0017] Figure 3 A cross-section of a chemical fiber paper tube hardness testing device proposed in this utility model. Figure 1 ;

[0018] Figure 4 A cross-section of a chemical fiber paper tube hardness testing device proposed in this utility model. Figure 2 .

[0019] In the diagram: 1. Hardness tester; 2. Testing platform; 3. Semi-arc groove; 4. Roller; 5. Rotating mechanism; 6. Fixed plate; 7. Hydraulic cylinder; 8. Clamping plate; 9. Auxiliary clamping mechanism; 10. Movable cavity; 11. Drive shaft; 12. Servo motor; 13. Connecting block; 14. Limiting rod; 15. Limiting sleeve; 16. Slide groove; 17. Slide column; 18. Spring; 19. Slider; 20. Small clamping plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-4 A hardness testing device for chemical fiber paper tubes includes a hardness tester 1. The hardness tester 1 is existing technology in this field. It detects the surface hardness of the object to be tested by moving the hardness testing block and the pressure gauge connecting rod downwards, so it will not be described in detail.

[0022] The hardness tester 1 is equipped with a test platform 2. The top of the test platform 2 is provided with a semi-circular groove 3. A roller 4 is provided in the semi-circular groove 3. The test platform 2 is equipped with a rotating mechanism 5 that drives the paper tube to rotate. The rotating mechanism 5 includes a movable cavity 10, a transmission shaft 11 and a servo motor 12. The movable cavity 10 is provided in the test platform 2. The transmission shaft 11 is rotatably provided in the movable cavity 10. The servo motor 12 is fixedly provided on the outside of the test platform 2.

[0023] The top of the testing platform 2 is equipped with a pair of fixed plates 6, and hydraulic cylinders 7 are installed on the fixed plates 6. The extension and retraction ends of the hydraulic cylinders 7 are equipped with clamping plates 8. By adjusting the length of the extension rods of the hydraulic cylinders 7 on both sides, the paper tube can be moved to the testing position at both ends and the middle end respectively, making the testing structure more comprehensive.

[0024] An auxiliary clamping mechanism 9 is provided on the clamping plate 8. The auxiliary clamping mechanism 9 includes a symmetrically distributed slide groove 16, slide column 17, spring 18, slider 19 and small clamping plate 20. The slide groove 16 is provided on the clamping plate 8, the slide column 17 is fixedly provided in the slide groove 16, the spring 18 is sleeved on the slide column 17, the slider 19 is slidably provided in the slide groove 16, and the small clamping plate 20 is provided on the opposite end of the slider 19.

[0025] It should be noted that the hydraulic cylinder 7 and the servo motor 12 are existing technologies. The hydraulic cylinder 7 is used to control the clamping plates 8 to move closer to each other and clamp the two ends of the paper tube. The servo motor 12 is used to drive the roller 4 to rotate, thereby driving the paper tube placed on the roller 4 to rotate. The specific model and specifications need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be elaborated. Both can be powered by external equipment and controlled to open and close.

[0026] Furthermore, one end of the drive shaft 11 passes through the outer wall of the detection table 2 and is fixedly connected to the output end of the servo motor 12, and the middle side roller 4 is coaxially arranged with the drive shaft 11.

[0027] The servo motor 12 drives the paper tube to rotate, allowing the hardness tester 1 to test different surfaces of the same position on the paper tube, thus making the test results more comprehensive.

[0028] Furthermore, connecting blocks 13 are provided on both sides of the fixing plate 6, and a limiting rod 14 is fixedly provided at one end of the connecting block 13. A limiting sleeve 15 is provided on the outer side of the clamping plate 8, and the limiting sleeve 15 is slidably disposed on the limiting rod 14.

[0029] The auxiliary clamping mechanism 9 is used to clamp the inner wall of the paper tube, and the small clamping plate 20 can be removed when not in use.

[0030] Furthermore, one end of the spring 18 is fixedly connected to the slide groove 16, the other end of the spring 18 is fixedly connected to the slider 19, and the small clamping plate 20 is threadedly connected to the slider 19.

[0031] Under the action of spring 18, the small clamping plate 20 can be continuously extended from the middle to both sides.

[0032] Working principle:

[0033] First, place the paper tube to be tested in the semi-circular groove 3 of the testing table 2, and support it with rollers 4. Then, activate the hydraulic cylinders 7 on both sides to push the clamping plates 8 to move towards both ends of the paper tube, so that they clamp the paper tube. The small clamping plates 20 of the auxiliary clamping mechanism 9 automatically adhere to the inner wall of the paper tube under the action of spring 18, ensuring that the paper tube will not shift or loosen during the testing process.

[0034] Then, the servo motor 12 starts and drives the middle roller 4 to rotate through the transmission shaft 11, thereby making the paper tube rotate at a uniform speed. The detection head of the hardness tester 1 presses down to detect the hardness of the paper tube surface. By controlling the rotation angle of the servo motor 12, multiple points can be detected at different circumferential positions of the paper tube to ensure the comprehensiveness of the hardness data. If it is necessary to detect the hardness of different axial positions of the paper tube, the extension and retraction length of the hydraulic cylinder 7 can be adjusted to make the paper tube move along the axial direction so that the hardness tester 1 can cover all sections of the paper tube.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hardness testing device for chemical fiber paper tubes, comprising a hardness tester (1), characterized in that, The hardness tester (1) is provided with a testing platform (2), the top of the testing platform (2) is provided with a semi-circular groove (3), a roller (4) is provided in the semi-circular groove (3), a rotating mechanism (5) that drives the paper tube to rotate is provided in the testing platform (2), a pair of fixed plates (6) are provided on the top of the testing platform (2), a hydraulic cylinder (7) is installed on the fixed plate (6), a clamping plate (8) is provided at the telescopic end of the hydraulic cylinder (7), and an auxiliary clamping mechanism (9) is provided on the clamping plate (8).

2. The chemical fiber paper tube hardness testing device according to claim 1, characterized in that, The rotating mechanism (5) includes a movable cavity (10), a transmission shaft (11) and a servo motor (12). The movable cavity (10) is disposed in the testing table (2), the transmission shaft (11) is rotatably disposed in the movable cavity (10), and the servo motor (12) is fixedly disposed on the outside of the testing table (2).

3. The chemical fiber paper tube hardness testing device according to claim 2, characterized in that, One end of the drive shaft (11) passes through the outer wall of the detection platform (2) and is fixedly connected to the output end of the servo motor (12). The roller (4) located in the middle is coaxially arranged with the drive shaft (11).

4. The chemical fiber paper tube hardness testing device according to claim 1, characterized in that, Connecting blocks (13) are provided on both sides of the fixing plate (6). A limiting rod (14) is fixedly provided at one end of the connecting block (13) opposite to it. A limiting sleeve (15) is provided on the outside of the clamping plate (8). The limiting sleeve (15) is slidably disposed on the limiting rod (14).

5. The chemical fiber paper tube hardness testing device according to claim 1, characterized in that, The auxiliary clamping mechanism (9) includes a symmetrically distributed slide groove (16), slide column (17), spring (18), slider (19) and small clamping plate (20). The slide groove (16) is disposed on the clamping plate (8). The slide column (17) is fixedly disposed in the slide groove (16). The spring (18) is sleeved on the slide column (17). The slider (19) is slidably disposed in the slide groove (16). The small clamping plate (20) is disposed on one end opposite to the slider (19).

6. The chemical fiber paper tube hardness testing device according to claim 5, characterized in that, One end of the spring (18) is fixedly connected to the slide groove (16), and the other end of the spring (18) is fixedly connected to the slider (19). The small clamping plate (20) is threadedly connected to the slider (19).

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