A device and method for testing the bursting strength of hygiene products.

Abstract

This invention discloses a bursting strength testing device and method for hygiene products, relating to the field of bursting strength testing technology. The device includes a testing body with an L-shaped support frame fixedly mounted on its upper end. A rotating disk is rotatably mounted inside the support frame. An electric push rod is fixedly mounted on the lower end of the rotating disk, and a test head is fixedly connected to the lower end of the electric push rod. A cylindrical sleeve fixedly mounted on the support frame is fitted around the test head. The rotating disk is connected to an adjusting disk rotatably mounted inside the testing body via a transmission assembly. A turntable is fixedly mounted on the adjusting disk. By incorporating a flattening pushing component on the test head, the surface of the material is wrinkle-free during testing, improving measurement accuracy. Simultaneously, a clamping device at the bottom ensures the rubber part remains elastic, and the clamping angle is adjusted via a rotating mechanism to prevent excessive deformation of the rubber part.

Description

Technical Field

[0001] This invention relates to the field of burst strength testing technology, specifically to a burst strength testing device and method for hygiene products. Background Technology

[0002] Hygiene products typically include toilet paper, wet wipes, diapers, and sanitary napkins. These products all require tear resistance testing to ensure they don't easily break during use. Different products may require different testing standards and methods, and the function of paper towels is constantly evolving. From ordinary paper towels to soft paper towels, and then to disinfecting wipes and face towels, different types of paper require tear resistance testing.

[0003] However, some existing testing devices cannot flatten the surface of the material being tested during use, resulting in wrinkles when performing damage testing. This causes the ejection mechanism to apply greater pressure when the paper is punctured, leading to a decrease in measurement accuracy. In addition, during long-term use, the wear and tear on the expandable rubber diaphragm inside the testing machine gradually increases with working time, which may cause the rubber diaphragm to bulge and lose elasticity in subsequent uses, affecting the testing efficiency and accuracy of the device.

[0004] To address the aforementioned issues, innovative designs are urgently needed based on existing approaches. Summary of the Invention

[0005] The purpose of this invention is to provide a bursting strength testing device and method for hygiene products, in order to solve the problems mentioned in the background art. The technical solution of this invention addresses the problem that the existing technical solutions are too simplistic and provides a solution that is significantly different from the existing technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bursting strength testing device for hygiene products, comprising a testing body, an "L"-shaped support frame fixedly mounted on the upper end of the testing body, a rotating disk rotatably mounted inside the support frame, an electric push rod fixedly mounted on the lower end of the rotating disk, a test head fixedly connected to the lower end of the electric push rod, a cylindrical sleeve fixedly mounted on the support frame sleeved on the outer side of the test head, a pushing component provided at the lower end of the test head, the rotating disk being connected to an adjusting disk rotatably mounted inside the testing body via a transmission component, a turntable fixedly mounted on the adjusting disk, a groove being formed inside the turntable, a sliding groove being formed at equal angles inside the adjusting disk, a clamping component being provided inside the sliding groove, and the clamping component being fixedly connected to a movable block elastically sliding in the groove of the turntable;

[0007] A rotating assembly is mounted on the detection machine body and is used to adjust the clamping angle of the clamping component.

[0008] Preferably, the rotating assembly includes a test head, which is rotatably mounted in the internal cavity of the cylindrical sleeve, and the cylindrical sleeve has a sliding groove on its side.

[0009] Preferably, the pushing component includes a rotating rod rotatably mounted on the lower end of the test head via a rotating shaft, and a pressing block is rotatably mounted on the lower end of the rotating rod.

[0010] Preferably, the rotating rod is positioned at an equal angle below the test head, the rotating rod is symmetrical about both sides of the pressing block, and the position of the pressing block corresponds to the position of the moving block.

[0011] Preferably, the rotating assembly includes a connecting rod, one end of which is slidably disposed in a groove at the upper end of the test head, and the other end is fixedly mounted with a movable rod, the surface of which is provided with a spiral groove.

[0012] Preferably, the lower end of the movable rod is fitted with a ratchet rotatably mounted inside the detection machine body. A guide rod is fixedly mounted on the inner wall of the ratchet. The front end of the guide rod is set in the spiral groove of the movable rod through a pulley. A rotating wheel is fitted on the outer side of the ratchet and rotatably mounted inside the detection machine body. An elastic limiting block is provided on the rotating wheel to engage with the ratchet.

[0013] Preferably, the transmission assembly includes a fixed rod and a transmission belt rotatably mounted on the detection body. Two identical rotating wheels are fixedly mounted on the fixed rod. The rotating wheel below the fixed rod is connected to the adjusting disk and the first rotating wheel via the transmission belt. The rotating wheel above the fixed rod is connected to the rotating disk via the transmission belt. The rotating disk and the adjusting disk have the same diameter.

[0014] Preferably, the clamping member includes a first clamping block, a second clamping block, and a movable column. The first clamping block is fixedly installed on the upper end of the movable column. The front end of the second clamping block is arc-shaped and is slidably installed on the movable column. The movable column is limited to sliding in the sliding groove. A spring is provided between the first clamping block and the second clamping block.

[0015] Preferably, the sliding groove has inclined surfaces on both sides from bottom to top, and abutment blocks are fixedly installed on both sides of the clamping block, with the abutment blocks abutting against the inclined ends of the inclined surfaces.

[0016] Preferably, the method includes the following steps:

[0017] S1: Place the object to be tested on the testing machine body, and push the test head downward by the electric push rod to fix the material. When the test head moves downward, it flattens the material to be tested by the pushing component to reduce wrinkles on the surface of the material.

[0018] S2: As the test head descends, it pushes the component to contact the moving block, and drives the moving block to move along the slide, causing the moving block to move the clamping part backward and clamp and stretch the elastic rubber installed on the test body.

[0019] S3: Then the bottom ejection mechanism is activated. The ejection mechanism moves upward continuously and punctures the test object by squeezing the elastic rubber to record data. After the test is completed, the test head reset lever, through the cooperation of the ratchet, guide rod, rotating wheel and transmission components, makes the rotating disk and the adjustment disk adjust their angles synchronously.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention, through the setting of the pushing component, allows the test head to make the pressing block contact the test material first through the rotating rod set at the same angle below during the downward pressing process. As the test head moves downward, the rotating rod deflects, and the deflected rotating rod smooths the material placed on the test body through the pressing block, reducing the wrinkles generated on the surface of the material, thereby increasing the overall measurement accuracy of the device.

[0022] 2. This invention, by setting a pressing block with a corresponding moving block, allows the pressing block to push the moving block to move during the movement process, so that the moving block drives the fixedly connected clamping member to move towards the inside of the sliding groove, thereby allowing the clamping member to clamp the rubber sleeve through the inclined surface of the sliding groove and stretch the rubber sleeve, so that the rubber sleeve can always maintain a high elasticity state and ensure the detection efficiency of the device.

[0023] Furthermore, after the inspection is completed, as the inspection head moves upward, the inspection head drives the movable rod to move upward synchronously via the connecting rod. This causes the movable rod to drive the rotating wheel one to rotate via the ratchet structure. At the same time, the rotating wheel one is connected to the adjusting plate and the rotating wheel two via the transmission belt. Through the cooperation of the transmission component, the rotating wheel two, and the connecting rod, the rotating plate and the adjusting plate can be adjusted synchronously, ensuring that the rotating rod and the moving block always maintain a corresponding position. Simultaneously, the clamping position of the clamping device on the rubber part is adjusted, so that all parts of the rubber part are subjected to the same tensile force, preventing deformation of the rubber part during long-term use and improving the overall service life of the rubber part. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the cylindrical sleeve of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection structure between the test head and the movable rod of the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the support frame structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection structure between the movable rod and the ratchet of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection structure between the rotating disk and the adjusting disk of the present invention;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the adjusting disc of the present invention;

[0031] Figure 8 This is a schematic diagram of the internal structure of the sliding groove of the present invention;

[0032] Figure 9 This is a schematic diagram of the three-dimensional structure of the test head of the present invention.

[0033] In the diagram: 1. Testing machine body; 2. Support frame; 3. Rotary disk; 4. Electric push rod; 5. Test head; 501. Rotating rod; 502. Pressing block; 6. Cylindrical sleeve; 7. Adjusting disk; 8. Turntable; 9. Sliding groove; 10. Clamping component; 1001. Clamping block one; 1002. Clamping block two; 1003. Movable column; 1004. Abutment block; 11. Moving block; 12. Connecting rod; 13. Movable rod; 14. Ratchet; 15. Guide rod; 16. Rotating wheel one; 17. Limiting block; 18. Fixing rod; 19. Rotating wheel two. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figures 1-9 This invention provides a technical solution: a bursting strength testing device for hygiene products, comprising a testing body 1, an "L"-shaped support frame 2 fixedly installed on the upper end of the testing body 1, a rotating disk 3 rotatably installed inside the support frame 2, an electric push rod 4 fixedly installed on the lower end of the rotating disk 3, a test head 5 fixedly connected to the lower end of the electric push rod 4, a cylindrical sleeve 6 fixedly installed on the support frame 2 on the outer side of the test head 5, a pushing component provided at the lower end of the test head 5, the rotating disk 3 being connected to an adjusting disk 7 rotatably installed inside the testing body 1 via a transmission component, a turntable 8 fixedly installed on the adjusting disk 7, a groove being provided inside the turntable 8, a sliding groove 9 being provided at equal angles inside the adjusting disk 7, a clamping member 10 being provided inside the sliding groove 9, and the clamping member 10 being fixedly connected to a moving block 11 that elastically slides in the groove of the turntable 8;

[0036] A rotating assembly is mounted on the testing machine body 1 and is used to adjust the clamping angle of the clamping member 10.

[0037] In one embodiment of the present invention, the rotating assembly includes a test head 5, which is rotatably installed in the internal cavity of the cylindrical sleeve 6, and the cylindrical sleeve 6 has a sliding groove 9 on its side.

[0038] In one embodiment of the present invention, the pushing component includes a rotating rod 501 rotatably mounted on the lower end of the test head 5 via a rotating shaft, and a pressing block 502 is rotatably mounted on the lower end of the rotating rod 501.

[0039] In one embodiment of the present invention, the rotating rod 501 is arranged at an equal angle below the test head 5, the rotating rod 501 is symmetrical about both sides of the pressing block 502, and the position of the pressing block 502 corresponds to the position of the moving block 11.

[0040] The test head 5 is pushed downward by the electric push rod 4, and as the test head 5 moves downward, the rotating rod 501 is deflected. The deflected rotating rod 501 flattens the material placed on the surface of the machine body through the pressing block 502, preventing the material from bulging and wrinkling during testing.

[0041] In one embodiment of the present invention, the rotating assembly includes a connecting rod 12, one end of which is slidably disposed in a groove opened at the upper end of the test head 5, and the other end is fixedly mounted with a movable rod 13, the surface of which is provided with a spiral groove.

[0042] In one embodiment of the present invention, a ratchet 14 is rotatably mounted inside the detection body 1 at the lower end of the movable rod 13. A guide rod 15 is fixedly mounted on the inner wall of the ratchet 14. The front end of the guide rod 15 is set in the spiral groove of the movable rod 13 through a pulley. A rotating wheel 16 is rotatably mounted inside the detection body 1 on the outer side of the ratchet 14. An elastic limiting block 17 is provided on the rotating wheel 16 to engage with the ratchet 14.

[0043] The transmission assembly includes a fixed rod 18 and a transmission belt rotatably mounted on the testing body 1. Two identical rotating wheels 19 are fixedly mounted on the fixed rod 18. The rotating wheel 19 below the fixed rod 18 is connected to the adjusting plate 7 and the rotating wheel 16 via the transmission belt. The rotating wheel 19 above the fixed rod 18 is connected to the rotating plate 3 via the transmission belt. The rotating plate 3 and the adjusting plate 7 have the same diameter.

[0044] In one embodiment of the present invention, the clamping member 10 includes a first clamping block 1001, a second clamping block 1002, and a movable column 1003. The first clamping block 1001 is fixedly installed on the upper end of the movable column 1003. The front end of the second clamping block 1002 is arc-shaped and is slidably installed on the movable column 1003. The movable column 1003 is limited to sliding in the sliding groove 9. A spring is provided between the first clamping block 1001 and the second clamping block 1002.

[0045] In one embodiment of the present invention, the sliding groove 9 is provided with inclined surfaces from bottom to top on both sides, and the clamping block 1002 is fixedly installed with abutting blocks 1004 on both sides, and the abutting blocks 1004 abut against the inclined ends of the inclined surfaces.

[0046] As one embodiment of the present invention, the method includes the following steps:

[0047] S1: Place the object to be tested on the testing body 1, and push the test head 5 downward by the electric push rod 4 to fix the material. When the test head 5 moves downward, it flattens the material to be tested by the pushing component to reduce wrinkles on the surface of the material.

[0048] S2: As the test head 5 descends, it pushes the component to contact the moving block 11 and drives the moving block 11 to move along the slide, so that the moving block 11 drives the clamping part 10 to move backward and clamps and stretches the elastic rubber installed on the test body 1.

[0049] S3: Then the bottom ejection mechanism is activated. The ejection mechanism moves upward continuously and punctures the test object by squeezing the elastic rubber to record data. After the test is completed, the reset lever 13 of the test head 5, through the cooperation of the ratchet 14, guide rod 15, rotating wheel 16 and transmission assembly, makes the rotating disk 3 and the adjustment disk 7 adjust their angles synchronously.

[0050] As the pressing block 502 moves continuously, it comes into contact with the moving block 11, thereby pushing the moving block 11 to move along the slot on the turntable 8. At the same time, the moving block 11 drives the clamping member 10 to move inward along the sliding groove 9, so that the clamping block 1002 can move upward through the inclined surface and cooperate with the clamping block 1001 to clamp and stretch the rubber sheet, so that the rubber sheet can maintain high elasticity, which is convenient for the device to perform detection. The ratchet 14 drives the rotating wheel 16 to rotate, and the rotating wheel 16 drives the adjusting plate 7 to rotate through the transmission structure.

[0051] Working principle: Place the material to be tested on the testing body 1, then start the electric push rod 4. The electric push rod 4 pushes the test head 5 to move downward along the cylindrical sleeve 6. During the downward movement of the test head 5, the rotating rod 501 pushes the pressing block 502 to flatten the material on the surface of the testing body 1, preventing wrinkles and protrusions on the material surface, which would require greater pushing force when performing subsequent damage degree testing, resulting in a large error in measurement accuracy.

[0052] As the pressing block 502 moves continuously, it comes into contact with the moving block 11. The pressing block 502 drives the moving block 11 to move along the sliding groove 9. The moving block 11, through its fixed connection with the clamping block 1001, drives the clamping member 10 to move synchronously. At the same time, the clamping block 1002 on the lower side of the clamping member 10 moves on the inclined surfaces on both sides of the sliding groove 9 through the abutment blocks 1004 on both sides. This causes the clamping block 1002 to move backward and upward at the same time, thereby enabling the clamping member 10 to fix and clamp the rubber part. The backward movement of the clamping member 10 stretches the rubber mold, keeping the rubber mold in an elastic state before each ejection, thus making the measurement data more accurate.

[0053] After the measurement is completed, the test head 5 moves upward under the action of the electric push rod 4. The test head 5 drives the movable rod 13 on the left side of the machine body to move upward synchronously through the connecting rod 12. During the upward movement of the movable rod 13, the ratchet 14 rotates through the movement of the guide rod 15 inside the spiral groove. Then, the ratchet 14 and the limit block 17 drive the rotating wheel 16 to rotate. The rotating wheel 16 drives the adjustment disk 7 to deflect through the transmission. The deflected adjustment disk 7 drives the fixedly installed turntable 8 to deflect synchronously, thereby adjusting the position of the clamping member 10 on the adjustment disk 7 synchronously, so that the position of the clamping member 10 to be clamped next will deflect. At the same time, the adjustment disk 7 deflects synchronously with the turntable 3 through the transmission belt, the second rotating wheel 19 and the fixed rod 18. Then, the turntable 3 drives the push component at the lower end of the test head 5 to always correspond to the position of the clamping member 10.

[0054] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A bursting strength testing device for hygiene products, comprising a testing body (1), characterized in that: The upper end of the testing machine body (1) is fixedly installed with an "L"-shaped support frame (2). A rotating disk (3) is rotatably installed inside the support frame (2). An electric push rod (4) is fixedly installed at the lower end of the rotating disk (3). A test head (5) is fixedly connected to the lower end of the electric push rod (4). A cylindrical sleeve (6) is fixedly installed on the support frame (2) on the outside of the test head (5). A pushing component is provided at the lower end of the test head (5). The rotating disk (3) is connected to an adjusting disk (7) rotatably installed inside the testing machine body (1) through a transmission component. A turntable (8) is fixedly installed on the adjusting disk (7). A groove is opened inside the turntable (8). A sliding groove (9) is opened at equal angles inside the adjusting disk (7). A clamping component (10) is provided inside the sliding groove (9). The clamping component (10) is fixedly connected to a moving block (11) that slides elastically in the groove of the turntable (8). A rotating assembly is disposed on the detection body (1) and is used to adjust the clamping angle of the clamping member (10); The pushing component includes a rotating rod (501) rotatably mounted on the lower end of the test head (5) via a rotating shaft, and a pressing block (502) is rotatably mounted on the lower end of the rotating rod (501). The clamping member (10) includes a clamping block one (1001), a clamping block two (1002), and a movable column (1003). The clamping block one (1001) is fixedly installed on the upper end of the movable column (1003). The front end of the clamping block two (1002) is arc-shaped, and the clamping block two (1002) is slidably installed on the movable column (1003). The movable column (1003) is limited to slide in the sliding groove (9). A spring is provided between the clamping block one (1001) and the clamping block two (1002). The sliding groove (9) has an inclined surface on both sides from bottom to top, and the clamping block (1002) has abutting blocks (1004) fixedly installed on both sides, and the abutting blocks (1004) abut against the inclined end of the inclined surface.

2. The bursting strength testing device for hygiene products according to claim 1, characterized in that: The rotating assembly includes a test head (5), which is rotatably mounted in the internal cavity of the cylindrical sleeve (6).

3. The bursting strength testing device for hygiene products according to claim 1, characterized in that: The rotating rod (501) is set at an equal angle below the test head (5). The rotating rod (501) is symmetrical about both sides of the pressing block (502). The position of the pressing block (502) corresponds to the position of the moving block (11).

4. The bursting strength testing device for sanitary products according to claim 1, characterized in that: The rotating assembly includes a connecting rod (12), one end of which is slidably disposed in a groove opened at the upper end of the test head (5), and the other end is fixedly installed with a movable rod (13), the surface of which is provided with a spiral groove.

5. The bursting strength testing device for hygiene products according to claim 4, characterized in that: The lower end of the movable rod (13) is fitted with a ratchet (14) that is rotatably installed inside the detection body (1). A guide rod (15) is fixedly installed on the inner wall of the ratchet (14). The front end of the guide rod (15) is set in the spiral groove of the movable rod (13) through a pulley. A rotating wheel (16) that is rotatably installed inside the detection body (1) is fitted on the outer side of the ratchet (14). An elastic limiting block (17) is provided on the rotating wheel (16) and engages with the ratchet (14).

6. The bursting strength testing device for hygiene products according to claim 5, characterized in that: The transmission assembly includes a fixed rod (18) and a transmission belt rotatably mounted on the detection body (1). Two identical rotating wheels (19) are fixedly mounted on the fixed rod (18). The rotating wheel (19) below the fixed rod (18) is connected to the adjustment plate (7) and the rotating wheel (16) through the transmission belt. The rotating wheel (19) above the fixed rod (18) is connected to the rotating disk (3) through the transmission belt. The rotating disk (3) and the adjustment plate (7) have the same diameter.

7. A method for testing the bursting strength of hygiene products, applicable to the testing device described in claim 5, characterized in that: The method includes the following steps: S1: Place the object to be tested on the testing machine body (1), and push the test head (5) downward by the electric push rod (4) to fix the material. When the test head (5) moves downward, it flattens the material to be tested by the push assembly to reduce the wrinkles on the surface of the material. S2: As the test head (5) descends, it pushes the component to contact the moving block (11) and drives the moving block (11) to move along the slide, so that the moving block (11) drives the clamping part (10) to move backward and clamps and stretches the elastic rubber installed on the test body (1). S3: Then the bottom ejection mechanism is activated. The ejection mechanism moves upward continuously and breaks the test object by squeezing the elastic rubber to record data. After the test is completed, as the test head (5) is reset, the movable rod (13) uses the ratchet (14), guide rod (15), rotating wheel (16) and transmission components to make the rotating disk (3) and the adjustment disk (7) adjust their angles synchronously.

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