A paper sheet water absorption detecting device

Abstract

The utility model provides a kind of paper water absorption detection device, it is related to paper water absorption detection technical field, and it includes: bottom plate, two mounting plates are fixedly connected on the top of bottom plate, two mounting plates are respectively fixedly installed with retainer on opposite two sides inner wall, rotating rod is rotatably connected in the two retainers, detection box is fixedly installed between opposite end of two rotating rods, weighing platform is fixedly installed on the bottom plate, this kind of detection device can overturn detection box by rotating assembly, without manual control, more time-saving and labor-saving, and the immersion time of test paper can be accurately controlled, secondly, water injection assembly can send water and drain to detection box, so that the drainage process is relatively simple and fast, and the detection platform is avoided to be damp by water supply and drainage.

Description

Technical Field

[0001] This utility model relates to the field of paper absorbency testing technology, specifically a paper absorbency testing device. Background Technology

[0002] Paper is an essential material in printing, writing, and packaging, and its quality directly affects the performance of the final product. One key characteristic of paper is its absorbency, which determines its behavior when in contact with liquids, such as the absorption rate and penetration depth of ink. This directly impacts the quality of printed materials, the suitability for writing instruments, and the protective capabilities of packaging materials.

[0003] Currently, one of the standard methods for assessing the absorbency of paper is the Cobb test. This method quantifies the absorbency by measuring the weight of water absorbed per unit area of ​​paper over a certain period of time. However, the traditional Cobb test has some shortcomings that limit its efficiency and accuracy. For example, the traditional method relies on manual operation, including the water supply and drainage process and precise control of the soaking time. These steps are easily affected by human factors, resulting in poor repeatability and reproducibility of the results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a paper water absorption detection device. The detection box can be flipped by the rotating component, which does not require manual operation, saving more time and effort. It can also accurately control the soaking time of the test paper. Furthermore, the water injection component can supply water to and drain water into the detection box, making the drainage process simple and quick, and avoiding making the detection table wet during water supply and drainage.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A paper absorbency testing device includes: a base plate, two mounting plates fixedly connected to the top of the base plate, retainers fixedly installed on the inner walls of the two mounting plates on opposite sides, rotating rods rotatably connected inside the two retainers, a test box fixedly installed between opposite ends of the two rotating rods, and a weighing platform fixedly installed on the base plate;

[0007] A rotating assembly, located on the outside of one of the mounting plates, is used to flip the detection box. The rotating assembly includes: a protective cover, gear a, a reducer, gear b, and a transmission chain.

[0008] The water injection assembly, located on the outside of another mounting plate, is used to inject water into the detection box. The water injection assembly includes: a mounting platform, a bidirectional pump, a rotary joint, a solenoid valve, and a water container.

[0009] Furthermore, a protective cover is fixedly installed on the outer side of one of the mounting plates, one end of the rotating rod on the adjacent side extends into the interior of the protective cover and is fixedly connected to gear a, a speed reducer is fixedly installed on the base plate near the protective cover, the drive shaft of the speed reducer extends into the interior of the protective cover and is fixedly connected to gear b, and a transmission chain connects gear a and gear b.

[0010] Furthermore, an installation platform is fixedly connected to the outer side of another mounting plate, a bidirectional pump is fixedly installed on the installation platform, a rotary joint is fixedly installed on the outer side of another mounting plate, a solenoid valve is fixedly installed at the bottom of the detection box, and a water box is provided on the top of the weighing platform.

[0011] Furthermore, a connecting pipe is provided inside the drive shaft at the end away from the rotating rod. The output end of the solenoid valve is connected to the inside of the detection box. One end of the connecting pipe is connected to the input end of the solenoid valve, and the other end of the connecting pipe passes through the rotating rod and is connected to the port at the top of the rotary joint.

[0012] Furthermore, the bidirectional pump is equipped with a suction hose and a delivery pipe. One end of the suction hose extends into the water container, and one end of the delivery pipe is connected to the port at the bottom of the rotary joint.

[0013] Furthermore, a mounting bracket is fixedly connected between the two rotating rods, a screw is threaded onto the mounting bracket, a sealing cap is fixedly installed at the bottom end of the screw, and a knob is fixedly connected to the top end of the screw.

[0014] Furthermore, a groove is provided on the top of the base plate, a pressure roller is provided inside the groove, a water receiving box is slidably connected inside the base plate, and a water trough communicating with the water receiving box is provided at the bottom of the groove.

[0015] The beneficial effects of this utility model are:

[0016] The advantages of this invention are that the test box can be flipped over by rotating the component, eliminating the need for manual operation, which saves time and effort, and allows for precise control of the soaking time of the test paper. Furthermore, the water injection component can supply water to and drain water from the test box, making the drainage process simple and quick, and preventing the test table from becoming damp during water supply and drainage. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the transmission chain structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the bidirectional pump structure of this utility model.

[0021] Figures 1-4 Components: 1. Base plate; 11. Mounting plate; 12. Cage; 13. Rotating rod; 14. Detection box; 15. Weighing platform; 2. Protective cover; 21. Gear a; 22. Reducer; 23. Gear b; 24. Transmission chain; 3. Mounting platform; 31. Two-way pump; 32. Rotary joint; 33. Solenoid valve; 34. Water collection box; 35. Connecting pipe; 36. Suction hose; 37. Conveying pipe; 4. Mounting bracket; 41. Screw; 42. Sealing cap; 43. Knob; 5. Groove; 51. Pressure roller; 52. Water receiving box; 53. Water trough. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figures 1-4 As shown, a paper absorbency testing device includes: a base plate 1, with two mounting plates 11 fixedly connected to the top of the base plate 1, and retainers 12 fixedly installed on the inner walls of the two mounting plates 11 on opposite sides, with rotating rods 13 rotatably connected inside each of the two retainers 12, and a test box 14 fixedly installed between the opposite ends of the two rotating rods 13; a weighing platform 15 fixedly installed on the base plate 1; a rotating assembly located outside one of the mounting plates 11 for flipping the test box 14; and a water injection assembly located outside the other mounting plate 11 for injecting water into the test box 14.

[0026] Among them, a mounting bracket 4 is fixedly connected between the two rotating rods 13, a screw 41 is threadedly connected to the mounting bracket 4, a sealing cap 42 is fixedly installed at the bottom end of the screw 41, a knob 43 is fixedly connected to the top end of the screw 41, a groove 5 is opened at the top of the base plate 1, a pressure roller 51 is provided inside the groove 5, a water receiving box 52 is slidably connected inside the base plate 1, and a drain trough 53 communicating with the water receiving box 52 is opened at the bottom of the groove 5.

[0027] When testing the paper, the paper is cut into circular pieces of the same size as the testing box 14. The circular pieces are then placed on the testing box 14. Rotating knob 43 causes screw 41 to engage with mounting bracket 4, which in turn moves the screw 41, causing the sealing cover 42 to move. By controlling the rotation direction of knob 43, the sealing cover 42 is moved up or down, ensuring it fits snugly against the testing box 14, thus pressing the circular paper firmly. A certain amount of water is then added, and the weight is recorded using weighing platform 15. The water is then pumped into the testing box 14 via the water injection component. Finally, the testing box 14 is flipped using the rotating component, causing the two rotating parts to... The moving rod 13 rotates inside the two retainers 12, causing the detection box 14 to be inverted, so that the water inside the detection box 14 is reversed and comes into contact with the circular paper. After a period of stillness, the circular paper absorbs the water for a period of time. Then the detection box 14 is flipped back to the initial position. Next, the sealing cover 42 is opened and the circular paper is removed. The circular paper is placed in the groove 5 and then rolled on the paper by the pressure roller 51 to squeeze out the excess water. The circular paper is then placed on the weighing platform 15 and the weight of the circular paper that has absorbed water is measured. By comparing the weight difference of the sample before and after the circular paper is soaked in water, the amount of water absorbed per unit area of ​​paper can be calculated, that is, the absorbency value of the paper can be obtained.

[0028] Example 2

[0029] Based on Embodiment 1, the rotating assembly includes: a protective cover 2, a gear a21, a reducer 22, a gear b23, and a transmission chain 24. The protective cover 2 is fixedly installed on the outer side of a mounting plate 11. One end of a rotating rod 13 on an adjacent side extends into the interior of the protective cover 2 and is fixedly connected to the gear a21. The reducer 22 is fixedly installed on the base plate 1 near the protective cover 2. The drive shaft of the reducer 22 extends into the interior of the protective cover 2 and is fixedly connected to the gear b23. A transmission chain 24 connects the gear a21 and the gear b23.

[0030] When flipping the detection box 14, the reducer 22 is started via the control panel on one side of the mounting plate 11. After the reducer 22 starts, it drives the gear b23 to rotate. The rotation of gear b23 drives the gear a21 to rotate via the transmission chain 24. The protective cover 2 can protect the gears a21, b23 and the transmission chain 24 when they rotate. The rotation of gear a21 drives the drive shaft of the rotating rod 13 to rotate, thereby driving the detection box 14 to rotate. After the detection box 14 rotates 180 degrees, the reducer 22 stops rotating, which makes it easy to invert the detection box 14. After the test is completed, the detection box 14 is flipped 180 degrees again to make the detection box 14 turn right side up. The start time of the reducer 22 can be set via the control panel. After it is turned on, the reducer 22 starts and drives the detection box 14 to rotate 180 degrees. After a certain period of time, the reducer 22 starts again and flips the detection box 14 back up. This can control the paper contact time with water.

[0031] Example 3

[0032] Based on Embodiment 1, the water injection assembly includes: a mounting platform 3, a bidirectional pump 31, a rotary joint 32, a solenoid valve 33, and a water collection box 34. The mounting platform 3 is fixedly connected to the outside of another mounting plate 11. The bidirectional pump 31 is fixedly installed on the mounting platform 3. The rotary joint 32 is fixedly installed on the outside of another mounting plate 11. The solenoid valve 33 is fixedly installed at the bottom of the detection box 14. The water collection box 34 is provided on the top of the weighing platform 15. A connecting pipe 35 is provided inside the drive shaft at the end away from the rotating rod 13. The output end of the solenoid valve 33 is connected to the inside of the detection box 14. One end of the connecting pipe 35 is connected to the input end of the solenoid valve 33. The other end of the connecting pipe 35 passes through the rotating rod 13 and is connected to the port at the top of the rotary joint 32. The bidirectional pump 31 is provided with a suction hose 36 and a delivery pipe 37. One end of the suction hose 36 extends into the inside of the water collection box 34. One end of the delivery pipe 37 is connected to the port at the bottom of the rotary joint 32.

[0033] When adding water, pour an appropriate amount of water into the water container 34. Weigh the water in the water container 34 using the weighing platform 15. Record the data after weighing. Then, start the bidirectional pump 31 through the control panel on one side of the mounting plate 11 to put it into water delivery mode, and open the solenoid valve 33 to connect the connecting pipe 35 to the inside of the detection box 14. After the bidirectional pump 31 starts, it draws water out of the water container 34 through the suction hose 36 and then delivers it to the rotary joint 32. The rotary joint 32 is designed to prevent the connecting pipe 35 from getting tangled or broken when the rotating rod 13 rotates. The water in the rotary joint 32 is delivered to the connecting pipe 35, and then from the connecting pipe 35 to the water container 34 through the solenoid valve 33. After delivery, close the solenoid valve 33 and the bidirectional pump 31 for testing. After testing, open the solenoid valve 33 again and start the bidirectional pump 31 to put it into water pumping mode, drawing water out of the detection box 14 and then pumping it to the water container 34.

[0034] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

[0035] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0036] The paper absorbency testing device provided in the embodiments of this application has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A paper absorbency testing device, characterized in that, include: A base plate (1) is fixedly connected to the top of the base plate (1) with two mounting plates (11). A retainer (12) is fixedly installed on the inner walls of the two mounting plates (11) on opposite sides. A rotating rod (13) is rotatably connected inside the two retainers (12). A detection box (14) is fixedly installed between the opposite ends of the two rotating rods (13). A weighing platform (15) is fixedly installed on the base plate (1). A rotating assembly is disposed on the outside of one of the mounting plates (11) for flipping the detection box (14). The rotating assembly includes: a protective cover (2), a gear a (21), a reducer (22), a gear b (23), and a transmission chain (24). The water injection assembly is located outside another mounting plate (11) and is used to inject water into the detection box (14). The water injection assembly includes: mounting platform (3), bidirectional pump (31), rotary joint (32), solenoid valve (33) and water box (34).

2. The paper absorbency testing device according to claim 1, characterized in that, A protective cover (2) is fixedly installed on the outside of one of the mounting plates (11). One end of the rotating rod (13) on the adjacent side extends into the interior of the protective cover (2) and is fixedly connected to a gear a (21). A speed reducer (22) is fixedly installed on the base plate (1) near the protective cover (2). The drive shaft of the speed reducer (22) extends into the interior of the protective cover (2) and is fixedly connected to a gear b (23). A transmission chain (24) is connected between the gear a (21) and the gear b (23).

3. The paper absorbency testing device according to claim 1, characterized in that, Another mounting plate (11) is fixedly connected to an mounting platform (3) on the outside. A bidirectional pump (31) is fixedly installed on the mounting platform (3). A rotary joint (32) is fixedly installed on the outside of another mounting plate (11). A solenoid valve (33) is fixedly installed at the bottom of the detection box (14). A water box (34) is provided on the top of the weighing platform (15).

4. The paper absorbency testing device according to claim 1, characterized in that, A connecting pipe (35) is provided inside the drive shaft at the end away from the rotating rod (13). The output end of the solenoid valve (33) is connected to the inside of the detection box (14). One end of the connecting pipe (35) is connected to the input end of the solenoid valve (33), and the other end of the connecting pipe (35) passes through the rotating rod (13) and is connected to the port at the top of the rotary joint (32).

5. The paper absorbency testing device according to claim 1, characterized in that, The bidirectional pump (31) is equipped with a suction hose (36) and a delivery pipe (37). One end of the suction hose (36) extends into the water container (34), and one end of the delivery pipe (37) is connected to the port at the bottom of the rotary joint (32).

6. The paper absorbency testing device according to claim 1, characterized in that, A mounting bracket (4) is fixedly connected between the two rotating rods (13). A screw (41) is threaded onto the mounting bracket (4). A sealing cap (42) is fixedly installed at the bottom end of the screw (41). A knob (43) is fixedly connected to the top end of the screw (41).

7. The paper absorbency testing device according to claim 1, characterized in that, The bottom plate (1) has a groove (5) on the top, and a pressure roller (51) is provided inside the groove (5). A water receiving box (52) is slidably connected inside the bottom plate (1). A water trough (53) communicating with the water receiving box (52) is provided at the bottom of the groove (5).

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