A testing device for sanitary napkin production

Abstract

The utility model discloses a kind of test devices for sanitary towel production, it is related to sanitary towel detection technical field, including base, the top of the base is equipped with detection block, detection block can be to entire sanitary towel water injection, improve the accuracy of detection result, the upper surface of the detection block is equipped with the groove corresponding with sanitary towel, the upper surface of the base is fixedly connected with support, the upper surface of the support is provided with water storage mechanism, the front of the base is equipped with water outlet groove, the front and back of the detection block are provided with splash-proof device, when the device works, front and back splash-proof device triggers gasbag body by gravity ball, linkage semicircular cover plate closes splash-proof, to solve the liquid in groove splashes caused by detection block sliding back and forth when working, the lower surface of the detection block is provided with plugging device, the device triggers gasbag by gravity ball, linkage cover plate seals groove bottom, the device detection precision is high, full-process automation.

Description

Technical Field

[0001] This utility model relates to the field of sanitary napkin testing technology, specifically a testing device for sanitary napkin production. Background Technology

[0002] Currently, sanitary napkins are a modern feminine hygiene product. They are absorbent materials primarily made of cotton, non-woven fabric, pulp, or a composite of these materials, forming a polymer and polymer composite paper. The adhesive backing of sanitary napkins is waterproof, allowing menstrual blood to be retained within the napkin. Sanitary napkins are used to absorb menstrual blood and need to be changed frequently. To prevent leakage, the absorbency of sanitary napkins needs to be tested during the manufacturing process. Various absorbency testing devices have emerged on the market to facilitate this testing. However, most of these devices only inject water from one point, causing water to concentrate at that point. This leads to over-absorption in that area and under-absorption in other areas, potentially resulting in one side being over-saturated while the other remains dry, affecting the accuracy of the test results. Furthermore, these devices do not account for water splashing during operation, leading to water splashing that requires manual cleaning and poses risks such as water corrosion of machine parts, power outages, and electrical leaks, making safe testing impossible.

[0003] Existing technologies and equipment are insufficient to meet the above requirements. Structural design flaws, poor equipment operational stability, and inaccurate testing results directly affect the effectiveness of sanitary napkins and increase equipment maintenance costs. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a testing device for sanitary napkin production, solving the problems mentioned in the background section. To achieve the above objectives, this utility model is implemented through the following technical solution: A testing device for sanitary napkin production includes a base, a detection block on the top of the base, a groove corresponding to a sanitary napkin on the upper surface of the detection block, a support fixedly connected to the upper surface of the base, a water storage mechanism on the upper surface of the support, and anti-splash devices on both the front and rear sides of the detection block. Each anti-splash device includes a V-shaped frame, an air-storing bladder A is assembled inside the V-shaped frame, and a movable block A is assembled on the right side of the air-storing bladder A. The right side of the movable block A is equipped with a gravity ball A. The left and right sides of the V-shaped frame are connected to air pressure chambers A. The end of the air pressure chamber A is connected to an air pressure rod A. The front end of the air pressure rod A is hinged to a telescopic rod. The top of the telescopic rod is hinged to a cover plate A. The upper surface of the base is provided with a through groove to facilitate the sliding of the detection block. The bottom of the through groove is equipped with a sliding groove. The right side of the upper surface of the base is equipped with a turntable. The top of the upper surface of the turntable is hinged to a connecting rod. The other end of the connecting rod is connected to the detection block. The front of the base is provided with a water outlet groove.

[0005] Preferably, the lower surface of the detection block is provided with a blocking device, the blocking device including a cover plate two, a pneumatic rod B connected to the right side of the cover plate two, a pneumatic actuator connected to the left side of the pneumatic rod B, a U-shaped pneumatic chamber connected to the middle of the lower surface of the pneumatic actuator, a U-shaped frame installed above the U-shaped pneumatic chamber, an air storage bladder B installed inside the U-shaped frame, a movable block B assembled on the right side of the air storage bladder B, and a gravity ball B with an outer rubber and an inner stainless steel structure assembled on the right side of the movable block B.

[0006] Preferably, the V-shaped frame has an overall angle of 120 degrees, and the V-shaped frame is equipped with a gas storage bladder A made of composite material and filled with gas.

[0007] Preferably, the upper surface of the U-shaped pneumatic rod is in contact with the lower surface of the U-shaped frame.

[0008] Preferably, the pneumatic rod B has a C-shaped structure and extends through the bottom of the groove.

[0009] Preferably, the cover plate has a semi-circular structure, and when the anti-splash device is in operation, the two cover plates close to form a complete circle.

[0010] This utility model provides a testing device for sanitary napkin production. It has the following beneficial effects: 1. This application can inject water into the entire sanitary napkin by setting a detection block, which can reduce the errors and randomness that may exist in single-point testing, avoid one side being overly saturated while the other side remains dry, and improve the accuracy of the test results.

[0011] 2. This application incorporates a splash-proof device. During operation, the two semi-circular cover plates close to form a complete circle, precisely covering the groove of the detection block and completely blocking liquid splashing when the water storage mechanism is filled, thus preventing splashed liquid from interfering with the detection environment or damaging the device components.

[0012] 3. This application ensures the accuracy of the test by setting up a blocking device. By sealing the bottom of the groove with a cover plate, it ensures that the test liquid injected by the water storage mechanism is in complete contact with the sanitary napkin, avoids premature leakage of liquid during the test, and ensures the accuracy of data such as absorbency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the front view of the present utility model; Figure 2 This is a top view structural diagram of the present invention; Figure 3 This is a schematic diagram of the anti-splash device of this utility model; Figure 4 This is a schematic diagram of the blocking device of this utility model; Figure 5 This is an enlarged view of the blocking device structure of this utility model.

[0014] In the diagram: 1. Base; 2. Bracket; 3. Water storage mechanism; 4. Groove; 5. Detection block; 6. Water outlet; 7. Anti-splash device; 701. Cover plate one; 702. Air pressure chamber A; 703. Air pressure rod A; 704. Telescopic rod; 705. V-shaped frame; 706. Air storage bag A; 707. Movable block A; 708. Gravity ball A; 8. Turntable; 9. Connecting rod; 10. Through groove; 11. Slide groove; 12. Blocking device; 1201. Air pressure rod B; 1202. Air pressure actuator; 1203. U-shaped frame; 1204. U-shaped air pressure chamber; 1205. Air storage bag B; 1206. Movable block B; 1207. Gravity ball B; 13. Cover plate two. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-5This utility model provides a technical solution: a testing device for sanitary napkin production, including a base 1, which serves as the basic component of the device and provides stable support for the equipment through its own structural strength. A water outlet 6 is provided on the front of the base 1, serving as the water outlet of the testing device. Its main function is to quickly drain wastewater used for testing, keep the device clean, and protect it from moisture. A testing block 5 is provided on the top of the base 1, suitable for testing the absorbency of sanitary napkins, and its main function is to ensure the accuracy of the test results. A through groove 10 is provided on the upper surface of the base 1 to facilitate the sliding of the testing block 5. The through groove 10 is the main component supporting the linear sliding of the testing block 5. A sliding groove 11 is provided at the bottom of the through groove 10. The chute 11 and the through groove 10 cooperate to provide a precise linear motion path and support for the detection block 5, ensuring that the motion trajectory of the sample relative to the spray / drip point is stable and without shaking. Its main function is to standardize the trajectory and fix the spray / drip point, reduce batch and equipment differences, and improve data accuracy. A turntable 8 is installed on the right side of the upper surface of the base 1. The turntable 8 drives the connecting rod 9 through rotation, converting the rotation into linear reciprocating motion of the detection block 5 in the through groove 10. The connecting rod 9 is hinged to the top of the upper surface of the turntable 8. One end of the connecting rod 9 is hinged to the turntable 8 and the other end is connected to the detection block 5, converting the circular motion of the turntable 8 into linear reciprocating motion of the detection block 5. The upper surface of the detection block 5 has a groove 4 corresponding to the sanitary napkin. The groove 4 serves as a detection groove for the sanitary napkin. The main function of the container is to stabilize the sanitary napkin to be tested within the groove 4, constrain the liquid range, and ensure accurate calculation of absorbency. The air pressure rod B1201 has a C-shaped structure and penetrates through the bottom of the groove 4, realizing the opening and closing control of the drain outlet at the bottom of the groove 4, so as to precisely control the sequence of liquid inflow and drainage during the test. A bracket 2 is fixedly connected to the upper surface of the base 1. The bracket 2 serves as a load-bearing component connecting the base 1 with other devices. Its main function is to maintain the stability of the device and avoid deviations in absorbency calculation. A water storage mechanism 3 is provided on the upper surface of the bracket 2. As the water storage mechanism of this device, it can effectively avoid frequent liquid replenishment during the test. Its main effect is to improve the accuracy of absorbency performance and simplify the test operation process. The front and rear sides of the test block 5 are both A splash-proof device 7 is provided, comprising a V-shaped frame 705. The V-shaped frame 705 is the core component of the splash-proof device 7, symmetrically positioned at 120 degrees to balance constraint and pressure relief efficiency. Its main function is structural mechanical linkage, requiring no complex sensors, simplifying maintenance, and ensuring high reliability. An air-storage bladder A706 is installed inside the V-shaped frame 705. When the air-storage bladder A706 is compressed, it releases the pressure and drives other components to transmit power. A movable block A707 is installed on the right side of the air-storage bladder A706. The movable block A707 transmits the thrust generated by the compressed air-storage bladder A706 to other components, primarily shortening the response time. It has a simple structure and strong adaptability. A gravity ball A708 is installed on the right side of the movable block A707.When the air reservoir A706 is compressed and pushes the movable block A707, the gravity ball A708 increases the overall thrust of the movable block through its own mass, amplifying the slight pressure of the air reservoir and transmitting it outwards. The left and right sides of the V-shaped frame 705 are connected to pressure chambers A702. When the air reservoir A706 is compressed and pushes the movable block A707, the gravity ball A708 increases the overall thrust of the movable block A707 through its own mass, amplifying the slight pressure of the air reservoir and transmitting it to the pressure chambers A702. Its main effect is to improve the smoothness of movement and enhance environmental tolerance. The end connection of the pressure chamber A702 is connected to a pressure rod A703, which receives the compressed air pressure transmitted from the pressure chamber A702 and converts the compressed air energy into its own linear extension motion. The pressure rod A703... The front end is hinged with a telescopic rod 704, which serves as a rigid connector between the pneumatic rod A703 and the cover plate 701. This precisely transmits the linear thrust of the extended pneumatic rod A703 to the cover plate 701, providing direct driving force for its rotation. Its main function is to ensure coordinated movement: eliminating motion interference between the pneumatic rod A703 and the cover plate 701, ensuring that the cover plate 701 rotates synchronously and smoothly as soon as the pneumatic rod A703 extends, avoiding splash delays caused by poor transmission. The cover plate 701 is hinged above the telescopic rod 704. The cover plate 701 has a semi-circular structure. When the splash guard 7 is in operation, both sides of the cover plate 701 close to form a complete circle. The cover plate 701 is closed by rotation during testing, ensuring proper contact within the groove 4. The sanitary napkin sample forms a physical barrier, directly intercepting liquid splashes. It is the final execution and protection component of the splash-proof device 7. A blocking device 12 is provided on the lower surface of the detection block 5. The blocking device 12 includes a cover plate 2 13. The cover plate 2 13 is mainly used to block the opening at the bottom of the groove 4 in the detection block 5, which can realize the sealing or conduction control of the detection liquid in the groove 4. By controlling the opening of the cover plate 2 13, the unabsorbed liquid in the groove 4 can be smoothly discharged into the water outlet 6, simplifying the subsequent cleaning process. A pneumatic rod B1201 is connected to the right side of the cover plate 2 13. The pneumatic rod B1201, together with other components, can seal or conduct the opening at the bottom of the groove 4 as needed. A pneumatic actuator 1202 is connected to the left side of the pneumatic rod B1201. 1202 is the core power component of the blocking device 12. It mainly uses air pressure as its power source, providing uniform thrust output and avoiding jamming or impact from mechanical transmission. This ensures consistent sealing of the cover plate 13 during each opening and closing, improving the reliability of batch test data. A U-shaped air pressure chamber 1204 is connected to the center of the lower surface of the air pressure actuator 1202. The U-shaped air pressure chamber 1204 uses small air pressure changes to achieve large displacement output, stably driving the blocking mechanism. A U-shaped frame 1203 is installed above the U-shaped air pressure chamber 1204, and the upper surface of the U-shaped air pressure rod 1204 fits against the lower surface of the U-shaped frame 1203. The U-shaped frame 1203 is a structural support and airbag constraint component of the blocking device 12, and its function is to fix the installation position of the air storage bag B1205.Simultaneously guiding the triggering actions of movable block B1206 and gravity ball B1207 ensures that the air pressure generated when the air bladder B1205 is compressed can be accurately transmitted to the U-shaped pressure chamber 1204. Its main effect is to ensure the accuracy of air pressure transmission: by restricting the deformation direction of the air bladder B1205 through the frame structure, it is prevented from expanding arbitrarily due to pressure, ensuring that the air pressure is concentrated and transmitted to the U-shaped pressure chamber, thereby stably driving the air pressure actuator 1202 and cover plate 13. The internal device of the U-shaped frame 1203 contains the air bladder B1205. When the air bladder B1205 is compressed, it can release the pressure it receives and drive other components to transmit power. Movable block B1206 is assembled on the right side of the air bladder B1205. 06 transmits the thrust generated by the pressure on the air reservoir B1205 to other components. A gravity ball B1207 is mounted on the right side of the movable block B1206. The gravity ball B1207 is the core triggering component of the blocking device 12. Its function is to use its own weight to push the movable block B1206 to compress the air reservoir B1205 when the detection block 5 slides into place or the detection process is triggered, thereby generating an initial air pressure signal and initiating the sealing or opening action of the cover plate 13. The rubber outer layer of the gravity ball B1207 buffers impact and prevents wear, while the stainless steel inner layer ensures gravity stability, ensuring consistent compression force on the air reservoir B1205 each time it is triggered. This results in high accuracy of the subsequent opening and closing action of the cover plate 13, reducing batch detection errors.

[0017] Working principle: During use, the turntable 8 on the right side of the base 1 rotates, and the connecting rod 9 drives the detection block 5 to slide along the slide groove 11 at the bottom of the through groove 10 until the detection block 5 moves directly below the water storage mechanism 3. During this process, the gravity ball B1207 of the blocking device 12 on the lower surface of the detection block 5 moves synchronously with the sliding of the detection block 5. Its own gravity pushes the movable block B1206 to squeeze the air storage bladder B1205 in the return frame 1203. The air storage bladder B1205 generates air pressure after being compressed, which is released through the U-shaped air pressure chamber 1204. The air pressure signal is amplified and transmitted to the air pressure actuator 1202. The air pressure actuator 1202 converts the air pressure into mechanical thrust, driving the air pressure rod B1201 to extend and retract, ultimately causing the cover plate 13 to close, sealing the bottom opening of the groove 4 inside the detection block 5 to prevent liquid leakage during subsequent water addition. Simultaneously, the gravity balls A708 of the anti-splash devices 7 on both sides of the detection block 5 are triggered by the displacement of the detection block 5 or its own gravity, pushing the movable block A707 to compress the air storage bladder A706 inside the V-shaped frame 705. Air pressure is transmitted through the air pressure chamber A702 to the air pressure rod A703. The air pressure rod A703 pushes the telescopic rod 704 to extend, ultimately causing the two semi-circular cover plates 701 to close, forming a complete circle that covers the top of the groove 4, preventing liquid splashing when the water storage mechanism 3 adds water. After both cover plate 701 and the bottom cover plate 13 of the groove 4 are sealed, the water storage mechanism 3 injects test liquid into the groove 4 according to the set amount. The liquid fully contacts the sanitary napkin placed in the groove 4. After standing for a set time, the absorbency of the sanitary napkin is tested. After the test is completed... Turntable 8 rotates in the opposite direction, driving the detection block 5 to reset along the through groove 10 via connecting rod 9; during this process, gravity ball A708 and gravity ball B1207 lose triggering force, air bladder A706 and air bladder B1205 depressurize, the air pressure rod A703 and telescopic rod 704 of anti-splash device 7 retract, cover plate one 701 opens, the air pressure rod B1201 of blocking device 12 resets, cover plate two 13 opens, and the unabsorbed liquid in groove 4 flows into the water outlet 6 directly in front of base 1 through the bottom opening and is discharged, completing a single detection process.

[0018] 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 testing device for sanitary napkin production, comprising a base (1), characterized in that: The base (1) has a detection block (5) on its top. The upper surface of the detection block (5) has a groove (4) corresponding to the sanitary napkin. A bracket (2) is fixedly connected to the upper surface of the base (1). A water storage mechanism (3) is provided on the upper surface of the bracket (2). Anti-splash devices (7) are provided on both the front and rear sides of the detection block (5). The anti-splash device (7) includes a V-shaped frame (705). An air storage bladder A (706) is assembled inside the V-shaped frame (705). A movable block A (707) is assembled on the right side of the air storage bladder A (706). A gravity ball A (708) is assembled on the right side of the movable block A (707). The left and right sides of the V-shaped frame (705) are... The base (1) is connected to two sides with air pressure chambers A (702), and air pressure rods A (703) are connected to the end of air pressure chambers A (702). A telescopic rod (704) is hinged to the front end of air pressure rods A (703). A cover plate (701) is hinged to the top of telescopic rods (704). A through groove (10) is provided on the upper surface of the base (1) to facilitate the sliding of the detection block (5). A sliding groove (11) is installed at the bottom of the through groove (10). A turntable (8) is installed on the right side of the upper surface of the base (1). A connecting rod (9) is hinged to the top of the upper surface of the turntable (8). The detection block (5) is connected to the other end of the connecting rod (9). A water outlet groove (6) is provided on the front of the base (1).

2. The testing device for sanitary napkin production according to claim 1, characterized in that: The detection block (5) is provided with a blocking device (12) on its lower surface. The blocking device (12) includes a cover plate (13). A pneumatic rod B (1201) is connected to the right side of the cover plate (13). A pneumatic actuator (1202) is connected to the left side of the pneumatic rod B (1201). A U-shaped pneumatic chamber (1204) is connected to the middle of the lower surface of the pneumatic actuator (1202). A U-shaped frame (1203) is installed above the U-shaped pneumatic chamber (1204). An air storage bag B (1205) is installed inside the U-shaped frame (1203). A movable block B (1206) is assembled on the right side of the air storage bag B (1205). A gravity ball B (1207) with an outer rubber and an inner stainless steel is assembled on the right side of the movable block B (1206).

3. The testing device for sanitary napkin production according to claim 1, characterized in that: The V-shaped frame (705) has an overall angle of 120 degrees, and the V-shaped frame (705) is equipped with a gas storage bag A (706) made of composite material and filled with gas.

4. The testing device for sanitary napkin production according to claim 2, characterized in that: The upper surface of the U-shaped air chamber (1204) is attached to the lower surface of the U-shaped frame (1203).

5. The testing device for sanitary napkin production according to claim 2, characterized in that: The pneumatic rod B (1201) has a C-shaped structure and penetrates the bottom of the groove (4).

6. The testing device for sanitary napkin production according to claim 1, characterized in that: The cover plate (701) has a semi-circular structure. When the anti-splash device (7) is in operation, the two cover plates (701) close to form a complete circle.

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