Paper diaper core diffusion test equipment

Abstract

The utility model relates to the technical field of paper diaper detection, and discloses paper diaper core diffusion testing equipment which comprises a support and a liquid supply device, the support comprises a supporting plate which is a concave arc-shaped plate and used for supporting a sample, the liquid supply device is used for injecting testing liquid into the sample, the supporting plate is connected with the testing device, and the supporting plate is connected with the testing device. The testing device comprises a first probe and a second probe, and the first probe and the second probe penetrate into the sample and are used for detecting the testing liquid in the sample. According to the paper diaper core diffusion testing equipment, a paper diaper sample is placed in the center of the supporting plate, the concave arc-shaped plate serves as the supporting plate and can shape the paper diaper sample, so that the paper diaper sample is in an actual wearing form, and then a preset amount of testing liquid is injected into the sample through the liquid supply device; the diffusion shape of the test liquid can be drawn in real time through the detection signal positions of the first probe and the second probe, so that the experimental error is reduced, and the accuracy of the detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of diaper detection, in particular to a diaper core diffusion test device. Background Art

[0002] Diapers are daily necessities commonly used by babies. Dry diapers can keep babies sleeping well all night. Due to their strong water absorption, they are commonly known as "diapers". Babies are a special group of people. Diapers are sanitary products for babies. The diffusion rate of liquid in the diaper core is an important indicator for people to choose diapers, and it is also an important parameter for manufacturers to control the quality of the diapers they produce.

[0003] The existing technology for testing the moisture diffusion parameters of diapers mostly relies on manual work. The diaper sample is manually laid flat on the test table, and a certain amount of test liquid is poured into the same point at the same height. After waiting for a certain period of time, the diffusion area of ​​the test liquid in the diaper core is observed and measured, and the diffusion rate of the test liquid in the diaper core is obtained by calculation. However, during the manual testing process, the method of laying the sample flat cannot simulate the effect of the diaper after actual wearing, and the manual measurement of the display area of ​​the test liquid is prone to measurement errors, resulting in inaccurate measurement of the area, which in turn affects the accuracy of the test results. Utility Model Content

[0004] The purpose of the utility model is to provide a diaper core diffusion test device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a diaper core diffusion test device, comprising: a bracket, the bracket comprising a support plate, the support plate is a concave arc plate, used to support a sample, a liquid supply device, the liquid supply device is used to inject test liquid into the sample, the support plate is connected to the test device, the test device comprises a first detection needle and a second detection needle, the first detection needle and the second detection needle are inserted into the sample to detect the test liquid in the sample.

[0006] Preferably, a circuit board is arranged inside the support plate, and the circuit board is used to transmit contact signals emitted by the first detection needle and the second detection needle.

[0007] Preferably, the first detection needle is located at the center of the sample.

[0008] Preferably, the liquid supply device comprises a liquid pump, a liquid inlet pipe is arranged at the input end of the liquid pump, and a liquid outlet pipe is arranged at the output end of the liquid pump.

[0009] Preferably, the liquid outlet end of the liquid outlet pipe is located directly above the first detection needle.

[0010] Preferably, the bracket includes a positioning rod, and the positioning rod is provided with a through hole.

[0011] Preferably, the perforation hole diameter is matched with the outer diameter of the liquid outlet pipe.

[0012] Preferably, the bracket includes a column, and the liquid pump is arranged at the top end of the column and is detachably connected to the column.

[0013] Preferably, the liquid inlet pipeline is connected to a liquid storage tank, and the liquid storage tank is used to store the test liquid.

[0014] Preferably, solenoid valves are provided on both the liquid inlet pipe and the liquid outlet pipe.

[0015] The diaper core diffusion test equipment has the following beneficial effects:

[0016] The diaper core diffusion test equipment places the diaper sample at the center of the support plate. The concave arc plate as the support plate can shape the diaper sample to make it present the shape after actual wearing. Then a preset amount of test liquid is injected into the sample through the liquid supply device. The diffusion shape of the test liquid can be outlined in real time through the detection signal positions of the first detection needle and the second detection needle, thereby reducing experimental errors and improving the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0018] Figure 2 for Figure 1 a cross-sectional view of the middle support plate;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0020] In the figure: 1. workbench; 2. liquid supply device; 21. liquid storage tank; 22. liquid pump; 23. liquid inlet pipe; 24. liquid outlet pipe; 3. bracket; 31. bottom plate; 32. side plate; 33. support plate; 34. column; 35. positioning rod; 4. testing device; 41. first detection needle; 42. second detection needle; 43. circuit board; 5. controller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 As shown, the utility model provides an embodiment of a diaper core diffusion test device, including: a bracket 3, the bracket 3 includes a base plate 31, the base plate 31 is placed on a workbench 1, the base plate 31 is fixedly mounted with a side plate 32, the side plate 32 is fixedly mounted with a support plate 33, wherein the support plate 33 is a concave arc plate for supporting a sample. In the present application, the sample is a diaper, and the concave arc plate as the support plate 33 can shape the diaper sample to make it present the actual shape after being worn, simulating the actual use effect of the diaper.

[0023] Furthermore, the base plate 31 is fixedly mounted with a column 34, and a positioning rod 35 is fixedly mounted in the middle section of the column 34. A hole is formed at one end of the positioning rod 35, and the inner wall of the hole is roughened to increase its friction coefficient. The roughening method includes but is not limited to attaching silicone particles to the inner wall, polishing with sandpaper, and sand blasting.

[0024] like Figure 1 As shown, a liquid supply device 2 is provided on the workbench 1, and the liquid supply device 2 is used to inject a test liquid (in the present application, the test liquid is 0.9% saline) into the sample. The liquid supply device 2 includes a liquid pump 22, and the liquid pump 22 is provided at the top of the column 34 and is detachably connected to the column 34. The connection methods include but are not limited to bolt connection and snap connection. The detachable connection method facilitates the removal of the liquid pump 22 for daily maintenance.

[0025] Specifically, a liquid inlet pipe 23 is set at the input end of the liquid pump 22, and a liquid outlet pipe 24 is set at the output end. Both the liquid inlet pipe 23 and the liquid outlet pipe 24 are hoses, and solenoid valves are set on the liquid inlet pipe 23 and the liquid outlet pipe 24. The start and stop of each liquid addition are controlled by controlling the switch of the solenoid valve. The diameter of the perforation on the positioning rod 35 is adapted to the outer diameter of the liquid outlet pipe 24, so that the liquid outlet pipe 24 is not easy to shake after passing through the perforation. The rough treatment of the inner wall of the perforation can enhance the friction between it and the liquid outlet pipe 24, so that the liquid outlet pipe 24 is not easy to detach from the perforation. The liquid inlet pipe 23 is connected to the liquid storage tank 21 and is connected to the liquid storage tank 21. The liquid storage tank 21 is placed on the workbench 1 for storing the test liquid.

[0026] like Figure 1-Figure 3 As shown, the support plate 33 is connected to the test device 4, and the test device 4 includes a first detection needle 41 and a second detection needle 42. The first detection needle 41 and the second detection needle 42 are fixedly installed on the support plate 33. One first detection needle 41 is provided, and a plurality of second detection needles 42 are provided. The second detection needles 42 are symmetrically arranged on both sides of the first detection needle 41 and distributed in an array. In the present application, the second detection needles 42 are divided into two groups, each group is provided with 6 rows, and each row has 5 needles.

[0027] In this embodiment, the first detection needle 41 and the second detection needle 42 penetrate into the sample, and can detect the test liquid in the sample while fixing the diaper sample. Specifically, the first detection needle 41 is located at the center of the sample, and the liquid outlet end of the liquid outlet pipe 24 is located directly above the first detection needle 41, so that the test liquid transported to the diaper sample by the liquid outlet pipe 24 can be quickly detected by the first detection needle 41, thereby facilitating the testing of the absorption time of the diaper sample. The test liquid in the diaper diffuses to the surroundings, and the second detection needle 42 detects the diffused liquid, thereby facilitating the testing of the diffusion range of the diaper sample.

[0028] like Figure 3 As shown, a circuit board 43 is also provided in the support plate 33, and the first detection needle 41 and the second detection needle 42 are electrically connected to the circuit board 43, so that the circuit board 43 can transmit the contact signal emitted by the first detection needle 41 and the second detection needle 42, and the circuit board 43 is electrically connected to the controller 5 placed on the workbench 1, and the controller 5 is a PLC controller. The controller 5 is connected to a computer, and the computer controls the entire device through the controller 5. The controller 5 can be implemented by an existing computer control system, and its control program is a relatively mature technology, which will not be elaborated here.

[0029] Specifically, when the test liquid contacts the second detection needle 42 during diffusion, the second detection needle 42 transmits the contact signal to the circuit board 43 in real time. The circuit board 43 transmits the second detection needle 42 signal to the computer through the controller 5. The computer outlines the diffusion shape of the test liquid through the position of the second detection needle 42, and then calculates the diffusion area of ​​the test liquid in the diaper.

[0030] In the present application, a diaper sample is placed at the center of a support plate 33, a first detection needle 41 and a second detection needle 42 are inserted into the sample to fix it, and the support plate 33 shapes the diaper sample to make it present the shape after actual wearing, and then the solenoid valve is opened, and the test liquid in the liquid storage tank 21 is injected into the diaper sample through the liquid outlet pipe 24, and after the diaper absorbs a preset amount of the test liquid, the test liquid will contact the first detection needle 41 and the second detection needle 42 when diffusing in the sample, and the absorption time of the diaper sample is tested by the first detection needle 41, and then the diffusion shape of the test liquid can be outlined through the detection signal positions of several second detection needles 42, and then the diffusion area of ​​the test liquid can be calculated, thereby reducing the experimental error and improving the accuracy of the test result, and the first detection needle 41 and the second detection needle 42 cooperate to provide real-time feedback on the absorption and diffusion of the test liquid in the diaper.

[0031] It is understandable that liquid can be added to diaper samples multiple times, and the absorption time, diffusion area and total re-seepage of the diapers at different liquid addition times can be tested. Combining all the data can determine the advantages and disadvantages of different diapers.

[0032] In addition, the diaper core diffusion test equipment uses the principle of probe sensing and inputting into the computer. There is no need for manual liquid addition during the experiment, and it can automatically collect data. Compared with manual testing, it has more accurate liquid addition and test results, thereby reducing the error and instability of the experimental results and improving the accuracy of the experiment.

[0033] Working principle: Place the diaper sample at the center of the support plate 33, and the first detection needle 41 and the second detection needle 42 penetrate into the sample to fix it. The support plate 33 shapes the diaper sample to make it present the shape after actual wearing. Then open the solenoid valve, and the test liquid in the liquid storage tank 21 is injected into the diaper sample through the liquid outlet pipe 24. After the diaper absorbs a preset amount of test liquid, the test liquid will contact the first detection needle 41 and the second detection needle 42 when diffusing in the sample. The absorption time of the diaper sample is tested by the first detection needle 41, and the diffusion shape of the test liquid can be outlined by the detection signal positions of several second detection needles 42, and then the diffusion area of ​​the test liquid can be calculated. The first detection needle 41 and the second detection needle 42 cooperate to provide real-time feedback on the absorption and diffusion of the test liquid in the diaper.

[0034] In summary, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diaper core diffusion test device, characterized in that: include: A support (3), wherein the support (3) comprises a support plate (33), wherein the support plate (33) is a concave arc-shaped plate, and is used to support the sample; A liquid supply device (2), the liquid supply device (2) being used to inject a test liquid into the sample; The support plate (33) is connected to a testing device (4), wherein the testing device (4) comprises a first detection needle (41) and a second detection needle (42), wherein the first detection needle (41) and the second detection needle (42) penetrate into a sample to detect a test liquid in the sample.

2. A diaper core diffusion test device according to claim 1, characterized in that: A circuit board (43) is arranged inside the support plate (33), and the circuit board (43) is used to transmit contact signals emitted by the first detection needle (41) and the second detection needle (42).

3. A diaper core diffusion test device according to claim 2, characterized in that: The first detection needle (41) is located at the center of the sample.

4. A diaper core diffusion test device according to claim 3, characterized in that: The liquid supply device (2) comprises a liquid pump (22), the input end of the liquid pump (22) is provided with a liquid inlet pipeline (23), and the output end of the liquid pump (22) is provided with a liquid outlet pipeline (24).

5. A diaper core diffusion test device according to claim 4, characterized in that: The liquid outlet end of the liquid outlet pipe (24) is located directly above the first detection needle (41).

6. A diaper core diffusion test device according to claim 5, characterized in that: The bracket (3) comprises a positioning rod (35), and the positioning rod (35) is provided with a through hole.

7. A diaper core diffusion test device according to claim 6, characterized in that: The perforation hole diameter is matched to the outer diameter of the liquid outlet pipe (24).

8. A diaper core diffusion test device according to claim 4, characterized in that: The support (3) comprises a column (34), and the liquid pump (22) is arranged at the top end of the column (34) and is detachably connected to the column (34).

9. A diaper core diffusion test device according to claim 4, characterized in that: The liquid inlet pipeline (23) is connected to a liquid storage tank (21), and the liquid storage tank (21) is used to store the test liquid.

10. A diaper core diffusion test device according to claim 4, characterized in that: Solenoid valves are provided on both the liquid inlet pipe (23) and the liquid outlet pipe (24).

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